Great Basin Naturalist

Volume 35 Number 4 Article 1

12-31-1975

Endangered, threatened, extinct, endemic, and rare or restricted Utah vascular plants

Stanley L. Welsh Brigham Young University

N. Duane Atwood Bureau of Land Management, Cedar City, Utah

James L. Reveal University of Maryland, College Park, and Smithsonian Institution, Washington, D.C.

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Recommended Citation Welsh, Stanley L.; Atwood, N. Duane; and Reveal, James L. (1975) "Endangered, threatened, extinct, endemic, and rare or restricted Utah vascular plants," Great Basin Naturalist: Vol. 35 : No. 4 , Article 1. Available at: https://scholarsarchive.byu.edu/gbn/vol35/iss4/1

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Published at Provo, Utah, by Brigham Young University

Volume 35 December 31, 1975 No. 4

ENDANGERED, THREATENED, EXTINCT, ENDEMIC, AND RARE OR RESTRICTED UTAH VASCULAR PLANTS

Stanley L. Welshi, N. Duane Atwood-, and James L. ReveaP

Abstract.— The status of 382 vascular plant taxa with distribution in Utah is presented. Some 66 species are possibly endangered, 198 threatened, 7 extinct, and 20 extirpated within the state; 4 spe- cies have questionable taxonomic status. Included in the list are nearly 225 species of endemic plants, many of which are among the possibly endangered, threatened, and extinct or extirpated plants. Bibliographic citations, type locality, status, and distribution by counties is included for each species or infraspecific taxon. Two new species are described: Psoralen pariensis and Eriogonum natum. One new name. Astragalus barnebyi, is proposed; and one new variety, Eriogonum umbel- latum var. deserticum, is proposed. The following new combinations are made: Cycladenia hum- ilis var. jonesii; Aralia racemosa ssp. bicrenata; Heterotheca jonesii; Hymenoxys depressa; Xantho- cephalum sarothrae var. pomariense; Thelypodium integrifolium var. complanatum; Thelypodium sagittatum var. ovalifolium; Arenaria kingii var. plateauensis; Psorothamnus thompsonae; Najas caes- pitosus; Oenothera gouldii; Eriogonum corymbosum var. revealianum; Penstemon humilis var. ob- tusifolius; Penstemon lentus var. albiflorus; and Viola purpurea var. charlestonensis.

The vascular plant flora of Utah is These are plants that are of much inter- both large and complex. Its components est to scientists, because they present liv- are diverse, representing numerous flor- ing proof of the origin and evolution of istic elements from many parts of North species, origin of floras, and indications of America, including unique and provin- relationships of plant species. These cial elements restricted to the state. Spe- plants are those entities which have orig- cies of many major geographical group- inated here or are mere remnants of spe- ings of plants occur within the multiplic- cies which have had a much broader area ity of habitats available within Utah, all of distribution in the past. to a greater or lesser degree of their entire The impress of man and his activities range. Some of these species are at the onto the natural habitats of Utah has re- edge of their total range, and these occur duced the area available to most native in smaller portions of the state. Other or indigenous plants. Those species of taxa occur only in one or few peculiar, broad extent and wide ecological toler- limited edaphic situations or habitats, ances have withstood these activities best, while others are more widespread and with only a reduction in their range and cover a broad altitudinal or latitudinal number. Less frequently their range has expanse of Utah. increased in size as less-tolerant plants of Those plants that occur only within adjoining areas have been reduced. How- the state, or within the natural basins that ever, many of the most unique species overlap the artificial political boundaries have areas of distribution that are very of the state, are known as local endemics. small, with only a few known individuals. Their range can be widespread within In some examples the species have ap- Utah, but more often they are restricted parently ceased to exist in the Utah flora. in distribution to very limited areas. In most cases the new habitats made

^Department of Botany, Brigham Young Universily, Provo, Utah 84602. -Bm-eau of Land Management, Cedar City, Utah 84720. ^Departments of Botany, University of Maryland, College Park, Maryland 20742, and National Museum of Natural His- tory, Smithsonian Institution, Washington, D.C. 20560.

327 —

328 GREAT BASIN NATURALIST Vol. 35, No. 4 available by the acthdties of man have viously undeveloped, low-elevation, arid been occupied by introduced, cultivated, lands in the southern portions of the state and adventive plants from the Old World. is all the more impressive when one con- These are the crop plants and weeds of siders that most of the narrowly restric- modern agricultural and industrial so- ted plants occur in those areas (Figs. 1 ciety. and 2). Plant species which were once The phalanxes of intolerant native remote from the impacts of civilization recreational ac- plants have been retreating under the im- industrial, agricultural, or only pacts of agriculture and grazing for more tivities—are now threatened not by than a century. Industrial development the effects of ranching, construction, and very during most of that period was limited off-road travel, but even by the ageiicies of government which are estab- in extent, if not in effect. In Utah most in the public of these activities were restricted mainly lished by law to oversee protection of the to the broad valleys and river basins, trust the proper use and where plant communities that were rela- public lands. At the present time, hardly of even that set aside as tivel}^ fragile are now almost totally a part Utah, parks, or wilderness lacking within the state. However, these national monuments, is safe degradation by masses sites apparently contained few of the nar- areas, from exploit the rowly endemic plant species. With the of people or by those seeking to features these advent of the second half of the twentieth very natural resources and century, there has occurred a resurgence unique areas were established to protect. and most of economic activities, mineral explora- Inroads into the most remote portions of state guarantee tion, and a greater use of the public lands arid the now which hitherto had been considered as further reduction of the unique flora of those entities that will useful (if considered useful at all) only Utah. Naturally, commercializa- for grazing and watershed. The rapid suffer greatest from the which have spread of industrial development into pre- tion of the state will be those specific and naturally restricted areas of

Fig. 1. Distributional incidence of endangered, Fig. 2. Distribution of endangered, threatened, threatened, extinct, or extirpated Utah plants by extinct, and rare or restricted Utah plants, by county; total number is greater than the total phytogeographical subdivision. for the state due to overlap. Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 329 distribution. Only the most enlightened probably extinct. Each category was ab- management and protection from un- breviated as T, E, PoEx, or PrEx, respec- reasonable exploitation will ensure the tively. continuation of the rich indigenous flora That report was prepared during the that these plants represent. calendar year of 1974 as mandated by Commerical exploitation need not bring the Endangered Species Act of 1973 (Pub- about the demise of species, although the lic Law 93-205) in which the secretary of basic nature of the flora will change. It the Smithsonian was to report to Congress is a fact of biology that in even the most within one year on all of the "species of enlightened and carefully planned devel- plants which are now or may become en- opment, there will be a reduction in the dangered or threatened" in the United native vegetation. Reclamation attempts States (sec. 12). The Congress provided will be made with Old World introduc- no funding for the preparation of this re- tions, or with selected ecotypes of indig- port, and the time restrictions prevented enous plants, and not with those that oc- a detailed field examination of all spe- curred in the region prior to its modifi- cies included in the list. Some states, cation. Both of these types of plants can notably California and Texas, with active hardly replace the quality of those cleared offices concerned with endangered plant and destroyed by construction activities. species, were able to provide precise data; Revegetation of a disturbed site can be other states were able to supply some in- more or less productive from an economic formation, and still others had little or no standpoint, but natural plant succession input into the final report, except that will require generations before any real gathered by the committee established by resemblance of the natural vegetation the secretary to prepare a statement for will again be possible, and then, depend- the Congress. The data for the state of ing on the nature of the disturbance, the Utah was provided by a number of indi- native vegetation occupying the site can viduals (including the authors of this be of an entirely different composition paper, and Reveal served on the Smith- than formerly. Indigenous taxa with sonian committee), but time did not per- specific habitat requirements will not mit the type of critical examination of survive if those habitats are altered, and each taxon which has been largely pos- there is no known technology which can sible for the present paper. The Smithso- simulate some of the peculiar habitats nian report (Ripley 1975) was published present in the state—which are now oc- in the Federal Register (Schreiner 1975) cupied by narrowly restricted plants—and as a "notice of consideration," and we no technology can ever replace an extinct understand that the Department of In- species (Reveal 1973b). terior will submit a revised listing in the future. as to the desig- Because of the rate at which Utah is near Disagreement being impressed by all the forces of a nation of degree of endangerment be- this that of modern society, it seems important that tween paper and Ripley (1975) the endangered, threatened, extinct, en- represents the results of a more detailed demic, and rare or restricted vascular and concentrated survey of the Utah plants of Utah be inventoried, and that flora, and is based on detailed literature their known or historic areas of distribu- search and personal information of the that of their col- tion be outlined. That task is the basic present authors and goal of this paper, but this is only a leagues who have reviewed the manu- pioneering effort. Much work remains to script. These differences have largely been be done. resolved and will appear in the Smithso- While the present paper was in prep- nian's revised list to be submitted early aration, the secretary of the Smithsonian in 1976 to the Secretary of the Interior. Institution, S. Dillon Ripley, transmitted Much of the information has been ac- to the Congress of the United States a quired through many years of investi- "report on endangered and threatened gation of the Utah flora, both in the field species of the United States." This report and in the herbarium, and has been stim- (cited herein as "Ripley 1975") lists num- ulated by the Ripley (1975) report. erous plants from Utah as either threat- The designation of the status of an in- ened, endangered, possibly extinct, or dividual taxon as belonging to a partic- 330 GREAT BASIN NATURALIST Vol. 35, No. 4 ular category is subjective. Still, it is vious errors, which will not be repeated based on the best information available in the future, such as Lewisia maguirei to us at the present time (a requirement and Penstemon decurvus, to mention only of the Endangered Species Act). A plant two, are excluded. species is considered as "endangered" Voucher specimens for some of the re- when its known area of distribution is ports are cited in the distribution state- very small, and when the expected de- ments (e.g., Harrison 6370, for Cymop- exploitation of the area oc- velopment or terus basalticus) . Bibliographic citations cupied has already occurred or is immi- in support of distributional data are in- nent. A "threatened" plant is one of some- cluded for many species, especially for what larger known areal extent, but those which are obscure or are poorly rep- which has experienced or is now exper- resented in herbaria. We are not making iencing a reduction of its natural distribu- any attempt to provide precise location tional area. These are the two major cat- data (except as might be obtained from egories required by law to be designated. published type localities) in fear of com- Plants that are "rare or restricted" are mercial exploitation of some plants (i.e., those which have been collected only oc- catci and orchids) and because of the pos- casionally or which are known from very sibility of destruction of selected popula- limited regions of the state; they may or tions by those having a vested interest in may not be widely distributed elsewhere ridding parcels of land of any species of outside the political confines of Utah. In- plant that might fall under the protection troduced species are excluded from this of the provisions of the Endangered Spe- category, even though they might be re- stricted or even rare. Table 1. Numerical summary of the endan- Plants considered to be "endemic" are gered, threatened, extinct, extirpated and rare or those whose entire distributional area is endemic species in Utah. within Utah or within one of the natural drainage basins which overlap the politi- cal boundaries of the state. Some plants in this category especially are poorly known taxonomically and biologically, and in these cases we have so indicated the need for a careful systematic evalu- ation of the taxon to determine the status of the plant entity. All statements about status of those plants not endemic to Utah are with re- gard to the occurrence of those plants within Utah. In many, if not most of these cases, the species are widespread and com- mon to abundant in other portions of their area of distribution. If they are limi- ted, rare, or possibly extirpated from Utah, only that portion of their range is considered in making the designation. This follows the guidelines established by California and Texas in which the en- dangered and threatened lists are based solely upon the situation of the plant in question within the confines of the state boundaries (Table 1). Plants listed in one of the categories designated above by Ripley (1975) are included here, whether or not they are considered as something other than threat- ened, endangered, or extinct on the new list that will be published in 1976. Ob- Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 331 cies Act of 1973. Nevertheless, those agen- and if they should prove to be endangered cies charged with protection of endan- or threatened, that information should be gered or threatened plants must deter- presented to the Secretary so that such mine the precise localities of those entities species may be considered for the federal in order to plan for their survival. endangered species list. Maps are presented (Figs. 1 and 2) In a recent issue of the Federal Register, which demonstrate the unequal distribu- Greenwait (1975) proposed a "rule- tion of these unusual plants. In Figure 1 making" for various amendments to the the number of taxa known of each county Endangered Species Act of 1973. These is indicated. The total appears to be very amendments introduce the term "plant" large, but this is due to many of the spe- into many sections of the act. However, cies being listed in several counties when as Lachenmeier (1974) has pointed out, area of distribution occurs outside a single there are several legal and constitutional county. Phytogeographic regions of Utah questions about the act that need to be are plotted in Figure 2, and the number of resolved still, and from a botanical point taxa considered to be unusual is cited for of view, there still exist certain discrim- each. The number of taxa totals are less inatory differences between "wildlife" than for the entire state because some dis- and "plants." These must be resolved in tributional data are so indefinite as to not the future. be plotable. Also, the figures represent an In and for the state of Utah, we recom- to plot plants attempt within their main mend that a review board be appointed area of distribution; double representation to oversee the protection of Utah's most has been avoided. This accounts for the ap- unique plants, and funding should be parent discrepancies between the two forthcoming to allow a real understand- maps. ing not only of the endangered and threat- Recommendations ened species, but the entire state's flora. Land use planning should take into ac- The state should adopt the federal act and count the presence of the unusual plants include within its own listing those spe- present in the state of Utah. If and when cies of the state which are endangered the Secretary of Interior proclaims any or threatened within its borders. Policies species of plants found in Utah as en- should be adopted that will determine dangered or threatened, they will fall un- basic land use with regard to these unique der the protective provisions of the En- plants, and "critical habitats" as provided dangered Species Act which, in section by the act should be investigated through- seven, calls upon all federal departments out the state (see also Greenwait & Geh- and agencies "to insure that actions auth- ringer 1975). Above all, prompt actions orized, funded, or carried out by them do must be taken by the state to preserve and not jeopardize the continued existence of protect the state's unique flora, and the such endangered species and threatened members of the botanical community species or result in the destruction or must be ready to aid and assist all levels modification of habitat of such species." of government in this important endeavor. Those which are protected by law must be determined, and their areas of distri- Note bution should become known to the agen- cies responsible for their protection. In the following list, we are abbrevi- Questionable taxonomic units should be ating journals according to the abbrevi- investigated in order to determine their ations listed by Lawrence et al. (1968) nature and area of distribution. Plants and herbaria according to listing given by thought to be extinct should be sought Holmgren and Keuken (1974). We have in carefully coordinated field studies. The attempted to give the type information as results of these studies should be reported published in the original place of publica- to the Secretary- of the Interior so that in- tion; however, we are not attempting to formation about the various species may typify any name, nor is the herbarium be updated from time to time, and so the cited considered a statement of lectotyp- status of each taxon can be reviewed. ification. This information is given for the When new species are described from convenience of the reader. For the most Utah, their status should be evaluated, part, the abbreviations of the authors fol- . .

332 GREAT BASIN NATURALIST Vol. 35, No. 4

low the unpublished suggestions of the Holmgren & Reveal 1887 [ny, utc]; Index Kewensis staff. Holmgren & Holmgren 5169 [bry, NY, utc]).

Acknowledgments Cymopterus jonesii Coult. & Rose, Rev. The authors wish to acknowledge the N. Amer. Umbell. 80. 1888. critical reviews supplied by our colleagues Type: Frisco, Beaver Co., Utah, in the study of Utah's plant taxonomy. 8,000 feet, 22 Jun 1880, M. E. Jones Especially important help and criticism 1808 (US). was supplied b}' Arthur H. Holmgren, Status: Rare and restricted. Lois Arnow, and Andrew H. Barnum. Distribution: Southwestern Utah and Nevada (Mathias & Constance Apiaceae 1945).

Angelica wheeleri S. Wats., Amer. Nat- Cymopterus higginsii Welsh, Great Basin uralist 7: 301. 1873. Nat. 35: 377. 1976. Type: Utah, Wheeler s.n. (gh). Type: Shadscale dominated bajada, Status: Endemic, evidently rare and on gravelly pedimental fan east of local, possibly threatened. None Butte, ca 17 miles east of Glen Distribution: Northern and central Canyon City, Kane Co., Utah, 31 May Utah (Mathias & Constance 1945). 1975, 5. L.^ Welsh 12740 (bry). Status: Endemic, local; possibly Cymopterus basalticus M. E. Jones, Contr. threatened. W. Bot. 12: 6. 1908. Distribution: Eastern Kane Co., Type: Half-way Station, west of Wa Utah. Wa, Millard or Beaver Co., Utah, 7.000 Cymopterus (Mathias) feet, 15 May 1906, M. E. Jones s. n. minimus Mathias, (pom). Brittonia 2: 245. 1936, based on Aulo- Status: Restricted and locally abun- spermum minimum Mathias, Ann. Mis- dant, neither threatened nor endan- souri Bot. Gard. 17: 353. 1930. gered (Ripley, T) Type: On the upper part of the Distribution: Western Utah (Mil- "Breaks" at Cedar Breaks, Iron Co., lard Co., Harrison 6370; Matthews 14 Utah, ca 10,500 feet, Mathias 723 [bry]), and adjacent Nevada (Math- (mo). ias & Constance 1945). Status: Endemic, rare and restric- ted to Cedar Breaks, possibly endan- Cymopterus coulteri (M. E. Jones) Math- gered (Ripley, E). ias, Ann. Missouri Bot. Gard. 17: 276. Distribution: Cedar Breaks, Iron 1930. based on C. corrugatus var. coul- Co., Utah. teri M. E. Jones, Contr. W. Bot. 12:19. 1908. Cymopterus newberryi (S. Wats.) M. E. Type: Juab, Juab Co., Utah, 4,000 Jones, Zoe 4: 47. 1893, based on Peu- feet, 30 Apr 1880. M. E. Jones 1691 cedanum newberryi S. Wats., Proc. (us). Amer. Acad. Arts 11: 145. 1876. Status: Endemic, rare and restric- Status: Widespread and at least lo- ted, threatened (Ripley, T). cally abundant, neither threatened nor Distribution: Western Utah (San- endangered (Ripley, T). pete Co., Mabey 5300 [bry]). Distribution: Garfield, Grand, Kane, Millard, San Juan, Uintah, Cymopterus duchesnensis M. E. Jones. Washington, and Wayne counties, Utah Contr. W. Bot. 13: 12. 1910. (bry, utc), and northern Arizona Type: Among loose rocks on south- (Mathias & Constance 1945). ern slopes of mesas, Myton, Duchesne Co., Utah, 5,000 feet, 20 May 1908, Cymopterus rosei M. E. Jones, Contr. W. M. E.. Jones s.n. (pom). Bot. 12: 17. 1908. St.\ti:s: Endemic, rare and restric- Type: Richfield, Sevier Co., Utah, ted, threatened (Ripley, E). 18 Jun 1898, M. E. Jones 30 (us). Distribution: Duchesne and Uintah Status: Endemic, rare and local, pos- counties, Utah {Welsh 180 [bry]): sibly threatened (Ripley, T) .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 333

Distribution: Iron, Sanpete, Sevier, Status: Endemic (but possibly in and Washington counties, Utah {Ma- Mohave Co., Arizona), locally common, guirc 1913U Holmgren 10932 [utc]). not threatened nor endangered. Distribution: Beaver, Iron (ut), Ligusticum porteri Couh. & Rose var. Millard, and Washington counties. Utah brevilobum (Rydb.) Mathias & Con- (bry) . stance, Bull. Torrey Bot. Club 68: 123. 1941, based on L. brevilobum Rvdb.. Musineon lineare (Rydb.j Mathias, " Ann. Fl. Rocky Mts. 613, 1064. 1917. Missouri Bot. Gard. 17: 265. 1930, Type: Aquarius Plateau, Utah :5 Aug based on Daucophyllum lineare Rydb., 1905, Rrdberg & Calrton 7473 (nyj. Bull. Torrey Bot. Club 40: 69. 1913. Status: Endemic, rare and local; Type: Near Logan, Cache Co., Utah, possibly threatened. 9 Aug 1895, Rydberg s.n. (ny). Distribution: Aquarius Plateau, Status: Endemic, possibly threat- Garfield Co., Utah (Mathias & Con- ened. stance 1941). Distribution: Cache Co., Utah (Holmgren 3595 [utc]). Lomatium latilobum (Rydb. ) Mathias, Ann. Missouri Bot. Card. 25: 281. 1937, based on Cynomarathriim latilobum Apo(;yn.\ceae Rydb., Bull. ToiTey Bot. Club 40: 73. Cycladenia humilis Benth. var. jonesii 1913. (Eastw.) W^elsh & Atwood, stat. et Type: Proposed dam site, near Wil- comb, nov., based on C. jonesii Eastw., son Mesa, Grand Co., Utah, Rydberg Leafl. W. Bot. 3: 159. 1942. & Garrett 8371 (ny). Type: San Rafael Swell, Emery Co., Status: Endemic, rare and local, Utah. 19 May 1914, M. E. Jones s.n. possibly threatened. (C.'^S). Distribution: Grand Co., Utah Status: Endemic, rare and endan- (bry,- utc). gered (Ripley, E). Distribution: Emery and Grand Lomatium megarrhizum (A. Nels.) counties, Utah. Mathias, Ann. Missouri Bot. Gard. 25: 282. 1937, based on Peucedanum megar- This entity is known in Utah from rhiza A. Nels., Bull. Torrev Bot. Club three basic collections: the type as cited 26: 130. 1899. above, a collection by Cottam (ut) also Status: Rare and local, possibly from the San Rafael Swell, and a collec- threatened. tion from Castle Valley. Grand Co., Utah Distribution: Emery Co., Utah (Welsh 1970b). {Higgins 1268 [bry]) and southwest- Araliaceae ern Wyoming (Mathias & Constance 1945; Higgins 1972b). Aralia racemosa L. ssp. bicrenata (Woo- ton & Standley) Welsh & Atwood, Lomatium minimum Mathias, Ann. Mis- Stat. & comb, no^ ., based on A. bicre- souri Bot. Gard. 25: 273. 1937. nata Wooton & Standley, Contr. U.S. Type: Near the hotel, on dr}' slopes Natl. Herb. 16: 157. 1913. bordering Bryce Canyon, Garfield Co.. Status: Rare; restricted to Zion Utah, 8,600 feet, Mathias 670 (mo). Narrows, Washington Co., Utah. Status: Endemic, local, possibly Distribution: Washington Co.. Utah

threatened (Ripley, T) {Welsh 12366 [bry] ), and from south- Distribution: Garfield, Iron, and eastern Canada south to Georgia, west- Kane counties, Utah (bry, utc). ward to Arizona and northern Mexico (Kearney & Peebles 1951); the sub- Lomatium scabrum (Coult. & Rose) Ma- species is from Utah and Arizona. thias, Ann. Missouri Bot. Gard. 25: 275. 1937, based on Cynomarathrum scab- rum Coult. & Rose, Contr. U.S. Natl. ASCLEPIADACEAE Herb. 7: 247. 1900. Asclepias cutleri Woodson, Ann. Missouri Type: Frisco, Beaver Co., Utah, 2,400 Bot. Gard. 26: 263. 1939. meters, Jones 1864 (us). Status: Rare, threatened. 334 GREAT BASIN NATURALIST Vol. 35, No. 4

Distribution: Grand {Cottam 5799 Type: Along the San Juan River [bry] and San Juan {Holmgren 3144 near Bluff, San Juan Co., Utah, 1,200- [uTc]) counties, Utah, and from north- 1,500 meters, 1-2 Jul 1911, Rydberg eastern Arizona. 10001 (g?). Status: Habitat specific, in hanging Asclepias engelmanniana Woodson, Ann. gardens, restricted and possibly threat- Missouri Bot. Card. 28: 207. 1941. ened. Status: Rare. Distribution: Garfield, Grand, Distribution: Grand (Rydberg & Kane, San Juan, and Wayne counties, Garrett 8504 [ut]) and San Juan Utah (bry), and Black Mesa, Apache (Welsh et al. 2930 [bry]) counties, Co., Arizona (Howell & McClintock Utah; from Nebraska to Texas and 1960). Arizona. Enceliopsis nutans (Eastw.) A. Nels., Bot. Asclepias labriformis M. E. Jones, Proc. Gaz. 47: 433. 1909, based on Encelia Calif. Acad. Sci. II, 5: 708. 1895. nutans Eastw., Zoe 2: 230. 1891. Type: Capital Wash, near the Henry Status: Habitat specific, in heavy Mts., Co., Utah, 5,000 feet, in Wayne clay soils, restricted and rare. sandy gulch, 19 Jul 1894, M. E. Jones Distribution: Carbon, Duchesne, 5650 (pom). Emery, Grand, Uintah, and Wayne Status: Endemic to the state but counties, Utah (bry, utc), and western neither common, threatened nor en- Colorado (Harrington 1954). dangered. Distribution: Emery, Garfield, San Erigeron abajoensis Cronq., Brittonia 6: Juan, Uintah, and Wayne counties, 168. 1947. Utah (bry). Type: Abajo Mts. (eastern range), 3,000-5,300 meters, San Juan Co., Utah, Asclepias ruthiae Maguire & Woodson, 17 Aug 1911, Rydberg & Garrett 9755 Ann. Missouri Bot. Gard. 28: 245. 1941. (ny). Type: Frequent, sandy soil, vicinity Status: Endemic, rare and threat- of water tanks, Calf Spring Canyon, ened (Ripley, T). 5,000 feet, San Rafael Swell, 18 miles Distribution: Garfield, Kane, and southeast of Castle Dale. Emery Co., San Juan counties, Utah (bry). Utah, 10 May 1940, Maguire & Ma- guire 18310 (uTc). Erigeron arenarioides (D. C. Eaton) Status: Endemic, common in dis- Rydb., Fl. Rocky Mts. 1067. 1917, based junct populations on the San Rafael on Aster arenarioides D. C. Eaton ex A. Swell; possibly threatened (Ripley, T). Gray, Proc. Amer. Acad. Arts 8: 647. Distribution: Emery (Cottam 5500, 1873. Harrison 8067, Higgins & Reveal Type: Rocky gulch above Cottonwood 1285a [bry], Grand [see Woodson Canyon, Wasatch Mountains, Salt Lake 1954), and Wayne (Harrison 11223 Co.,' Utah, 8,000-9,000 feet, Aug 1869, and 11891 [bry]) counties, Utah. Waston 547 (us). Status: Endemic and rare, restric- Asteraceae ted to rock crevices, threatened. Distribution: Salt Lake, Tooele, Chamaechaenactis scaposa (Eastw.) Utah, and Weber counties, Utah (bry, Rydb., Bull. Torrey Bot. Club 33: 156. UTC; Cronquist 1947). 1906, based on Chaenactis scaposa Brittonia Eastw., Zoe 2: 231. 1891. Erigeron cronquistii Maguire, Status: Restricted, rare except lo- 5: 201. 1944. cally, not threatened nor endangered. Type: Cliffs, north side of Logan Canyon l^ mile below forks. Bear River Distribution: Carbon, Duchesne, Range, Cache Co., Utah, 5,800 feet, 20 Emery, San Juan, Uintah, and Wayne May 1939, Maguire 16681 (ny). counties, Utah, and western Colorado Status: Endemic, rare and threat- (bry. utc). ened (Ripley, T). Cirsium rydbergii Petrak, Beih. Bot. Distribi'tion: Cache Co.. Utah Centralbl. 35 (2): 315. 1917. (Cronquist 1947). .

Dec. 1975 WELSH, ET AL.: ENDANCJERED UTAH PLANTS 335

Erigeron garrettii A. Nels., Manual Bot. Type: Clear Creek, Zion N.P., Wash- Centr. Rocky Mts. 526. 1909. ington Co., Utah, 8 Sep 1938, Eastwood Type: Big Cottonwood Canyon, Salt 8z Howell 6339 (cas). Lake Co., Utah. 28 Jun 1905, Garrett Status: Endemic, rare and endan- 1310 (rm). gered (Ripley, E). Status: Endemic, rare and possibly Distribution: Kane [Harrison threatened (Ripley, T). 11085 [bry] and Washington counties, Distribution: High altitudes in Box Utah (Cronquist 1947). Elder (ut). Salt Lake and Utah coun- Erigeron sionis Cronq., Brittonia 6: 258. ties, Utah (bry; Cronquist 1947). 1947. Erigeron flagellaris A. Gray var. triloba- Type: Zion N.P., Washington Co., tus Maguire ex Cronq., Brittonia 6: 258. Utah, 1-3 Aug 1925, Pilsbry s.n. (ph). 1947. Status: Endemic, very rare and en- Type: Canyon to Cedar Breaks, 12 dangered (Ripley, E). miles east of Cedar City, Iron Co., Utah, Distribution: Washington Co., 5 Aug 1934, Maguire 14947 (ny). Utah; known only from type locality. Status: Endemic and rare, endanger- Flaveria campestris J. ed (Ripley, E). R. Johnston, Proc. Amer. Acad. Arts 29: 287. 1903. Distribution: Iron Co., Utah; Status: Rare, restricted, but not ap- known only from the type locality parently threatened or endangered. (Cronquist 1947). Distribution: Grand Co., Utah (Ma- Erigeron kachinensis Welsh & Moore, guire 1937; Harrison et al. 1964); Colo- Proc. Utah Acad. Sci. 45: 231. 1968. rado, New Mexico and northern Mex- Type: Hanging gardens and seeps, ico. near Kachina Natural Bridge, Natural Gaillardia flava Rydb., N. Amer. Fl. 34: Bridges N.M., San Juan Co., Utah, 13 139. 1915. Aug 1963, Welsh & Moore 2398 (bry). Status: Endemic, rare and endan- Type: Lower Crossing of the Price gered (Ripley, E). River (see Jones 1965), Emery Co., Distribution: San Juan Co., Utah; Utah, 2 Jul 1898, M. E. Jones 6412 known only from the type locality (us). (Welsh & Moore 1968). Status: Endemic, rare and endan- gered. Erigeron maguirei Cronq., Brittonia 6: Distribution: Emery Co., Utah 165. 1947. (Cottam & Hutchings 2176 [bry]). Type: Dry rocky sandy canyon bot- Gaillardia spathulata A. Gray, Proc. tom. Calf Spring Wash, 1.5 mile up Amer. Acad. Arts 12: 59. 1876. San Rafael Swell, 16 Jun 1940, 5,500 feet, Maguire 18459 (ny). Type: Rabbit Valley, Wayne Co., Status: Endemic, rare and possibly Utah, 7,000 feet, 1875, Ward s.n. (gh). extinct (Ripley, E). Status: Endemic, common through- out its Distribution: Emery Co., Utah; range, neither threatened nor en- known only from the type locality. dangered. Distribution: Carbon, Emery, Gar- Erigeron mancus Rydb., Fl. Rocky Mts. ' field, Grand, and Wayne counties, Utah 902, 1067. 1917. (bry, utc). Type: LaSal Mts., Grand or San Haplopappus scopulorum (M. E. Jones) Juan Co., Utah, 7 Jul 1911, Rydberg & Blake in Tidestrom, Garrett 8671 (ny). Contr. U.S. Natl. Herb. 25: 546. 1925, based on Bigelovia Status: Endemic, rare and possibly menziesii var. scopulorum M. E. Jones, threatened (Ripley, T) Proc. Calif. Acad. Sci. II, 5: 692. 1895. Distribution: LaSal Mts., Grand and San Juan counties, Utah (Cronquist Type: Near Cedar City, Iron Co., 1947.) Utah, 6,000 feet, 10 xMay'l894, M. E. Jones 5204v is the first of two collec- Erigeron religiosus Cronq., Brittonia 6: tions cited (pom). 258. 1947. Status: Uncommon, habitat specific, 336 GREAT BASIN NATURALIST Vol. 35, No. 4

neither endangered nor threatened Heterotheca grandiflora Nutt., Trans. (Ripley, T). Amer. Philos. Soc. II, 7: 315. 1840. Distribution: Iron, Kane (?), and Status: Rare, local and restricted. San Juan (Welsh & Moore 2447; Welsh Distribution: Washington Co., Utah 8813; Atwood 4100 [bry]) counties, {Welsh et al. 9530 [bry]); also in Cali- Utah, and Coconino Co., Arizona (Mc- fornia and Arizona. Dougall 1973). Heterotheca subaxillaris Britton & Rusby, Helianthus anomalus Blake, J. Wash. Trans. New York Acad. Sci. 7: 10. 1887. Acad. Sci. 21: 333. 1931. Status: Rare, possibly endangered. Type: Desert between Hanksville and Distribution: Grand Co., Utah Henry Mts., Wayne Co., Utah, 5 Jul {Welsh & Moore 2744 [bry]); wide- \9^0^, Stanton 4806 (us). spread elsewhere in the United States. Status: Restricted to dunes and sandy Hulsea heterochroma A. Gray, Proc. washes, where locally abundant, neither Amer. Acad. Arts 7: 359. 1868. threatened nor endangered. Status: Local, rare and possibly Distribution: Emery, Garfield, threatened. Grand, Juab, Kane, Millard, San Juan, Distribution: Washington Co., Utah Tooele, Uintah, Washington, and [Higgins & Atwood 1410 [bry]; Hig- Wayne counties, Utah, and northern gins 1972b); California and southern Arizona (Blauer 1966). Nevada. Helianthus canus (Britton) Wooton & Hymenopappus filifolius Hook. var. al- Standley, Contr. U.S. Natl. Herb. 6: pestris (Maguire) Shinners, Rhodora 190. 1913, based on Helianthus petiolar- 61: 155. 1959, based on H. nudipes var. is var. canus Britton, Mem. Torrey Bot. alpestris Maguire, Amer. Midi. Nat- Club 5: 334. 1894. uralist 37: 144. 1947 (includes var. Status: Rare, possibly threatened. nudipes (Maguire) Turner). Distribution: San Juan Co., Utah Type: Cedar Breaks rim. Iron Co., (Cottam 2544' [bry] ), and from western Texas to southern California and north- Utah, 23 Jun 1940, Maguire 19023 ern Mexico. (ny). Status: Restricted but locally com- Helianthus deserticolus Heiser, Proc. In- mon, not threatened nor endangered. diana Acad. Sci. 70: 209. 1961. Distribution: Duchesne, Garfield, Type: 3.3 miles west of Hurricane, Iron, Kane, Piute, Sevier, Summit, and Washington Co., Utah, 29 Jun 1957, Utah counties, Utah, and Lincoln Co., Stoutamire 2574 (ind). Wyoming (Turner 1956). Status: Rare, restricted and possibly threatened. Hymenopappus filifolius Hook. var. to- Distribution: Washington Co., Utah, mentosus (Rydb.) Turner, Rhodora 58: tomentosus Mohave Co., Arizona, and Clark Co., 237. 1956, based on H. Nevada (Heiser 1961). Rydb., Bull. Torrey Bot. Club 27: 633. 1900. Heterotheca jonesii (Blake) Welsh & At- Type: St. George, Washington Co., no\'., based on Chrysopsis wood, comb. Utah, 1877, Palmer 270 (ny). jonesii Blake in Tidestrom, Contr. U.S. Status: Endemic, rare and restricted, substitute Natl. Herb. 25: 536. 1925, a threatened (Ripley, T). name for C. caespitosa M. E. Jones, Distribution: Kane and Washington Sci. II, 5: 694. 1895, Proc. Calif. Acad. counties, Utah (Turner 1956). not Nutt. Type: Springdale, Washington Co., Hymcnoxys depressa (Torr. & Gray ex comb, nov., Utah, 4,000 feet, 16 May 1894, M. E. Gray) Welsh & Reveal, Jones 5249u (pom). based on Actinclla depressa Torr. & Arts Status: Endemic, rare, local, and en- Gray ex Gray, Mem. Amer. Acad. dangered. II, 4: 100. 1849.

Distribution: Washington and (jar- Status: Rare and . local, possibly field {Harrison 12345 [bry]) counties, threatened. Utah. Distribution: Emery (bry) and . . .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 337

Garfield (ut) counties, Utah, and from wood Canyon, Salt Lake Co., Utah, Colorado. 1869, 9,000 feet, Watson 507 (gh). Status: Endemic, rare and restricted, Lepidosparluni latisquamum S. Wats., possibh' threatened. Proc. Amer. Acad. Arts 25: 133. 1890. Distribution: Cache, Salt Lake and Status: Restricted and rare, possibly Utah counties, Utah (bry, utc). threatened. Malacothrix clcvelandii A. Gray. Bot. Distribution: Millard Co., Utah Calif. 1: 433. 1876. (bry), and adjacent Nevada west to Status: Local and infrequent. eastern California. Distribution: Washington Co., Utah Lygodesmia grandiflora (Nutt.) Torr. & [Ativood 4966 [bry, wts]); also in Gray var. striata Maguire, Amer. Midi. Nevada and California. Naturalist 37: 145. 1947. Partheniuni ligulatum (M. E. Jones) Type: Frequent on adobe clay, 1 mile Barneby, Leafl. W. Bot. 5: 20. 1947, south of Price, Carbon Co., Utah, 5 Jun based on P. alpinum var. ligulatum M. 1940, Maguire 18417 (ny). E. Jones, Contr. W. Bot. 13: 16. 1910. Status: Endemic, rare, restricted Type: On nearly bare clayey and and endangered. gravelly knolls on ridges, Theodore Distribution: Carbon Co., Utah; [now Duchesne], Duchesne Co., Utah, known only from the type locality. 6,000 feet, M. E. Jones s.n. (pom). Status: Endemic, rare and restricted, Machaeranthera glabriuscula (Nutt.) threatened (Ripley, T). Cronq. & Keck var. confertifolia Cronq., Distribution: Duchesne and Emery Leafl. W. Bot. 10: 11. 1963. counties, Utah (bry, ny). Type: Barren clay slopes in pinyon- juniper zone, 11 miles northeast of Senecio dimorphophyllus Greene var. Henrieville, Garfield Co., Utah, 7,000 intermedins Barkley, Trans. Kansas feet, 31 May 1961, Cronquist 9164 Acad. Sci. 65: 363." 1962. (ny). Type: Edge of swampy places. Geys- Status: Endemic, rare and threat- er Pass, LaSal Mts. Utah, 10,500 feet. ened. Payson & Payson 4097 (mo). Distribution: Garfield and Kane Status: Endemic, rare, restricted

counties, Utah (bry, utc) . and threatened (Ripley, T) Distribution: San Juan Co., Utah; Machaeranthera grindelioides (Nutt.) known only from the type area. Shinners var. depressa (Maguire) Cronq. & Keck, Brittonia 9: 237. 1957, Sphaeromeria capitata Nutt., Trans. based on Haplopappus nuttallii var. Amer. Philos. Soc. II, 7: 402. 1841. depressa Maguire, Amer. Midi. Natural- Status: Local and rare, threatened. ist 37: 144. 1947. Distribution: Grand Co., Utah Type: Warm Point, 5 miles southwest (utc); Wyoming and southern Mon- of Desert Range Experiment Station tana. headquarters, Millard Co., Utah, 10 Townsendia aprica Welsh & Reveal, Brit- Jun 1941, Maguire (ny). 20859 tonia 20: 375. 1968. Status: Rare and restricted, neither Type: Ca 6 miles south of Fremont threatened nor endangered (Ripley, T) Junction along Utah Highway 72, on Distribution: Beaver and Millard low, rolling exposed gray clay slopes, counties, Utah (bry), and Eureka, Lin- among scattered igneous boulders, Se- coln and White Pine counties, Nevada vier Co., Utah, ca 6,500 feet, 1 May (Maguire 1947). 1966, Reveal & Welsh 721 (bry). Status: Endemic, rare and restricted, Machaeranthera kingii (D. C. Eaton) endangered (Ripley, E) Cronq. & Keck, Brittonia 9: 238. 1957, Distribution: Sevier Co., Utah (bry; based on Aster kingii D. C. Eaton in Welsh & Reveal 1968). King, Rep. Geol. Explor. 40th Parallel 5: 141. 1871. Townsendia mensana M. E. Jones, Contr. Type: Wasatch Mts., above Cotton- W. Bot. 13: 15. 1910. 338 GREAT BASIN NATURALIST Vol. 35, No. 4

Type: Benches of the Uinta Mts., 204a; Welsh & Moore 3839 [bry]; Ma- near Theodore [now Duchesne], Du- guire 1937); southern Colorado and chesne Co., Utah, 14 May 1908, M. E. New Mexico. Jones s.n. (pom). Status: Endemic, locally restricted, Betul.'^ceae possibl}' threatened. Distribution: Duchesne and Uintah Betula X utahensis Britton, Bull. Torrey Bot. Club 31: 165. 1904. counties, Utah (Reveal 1970b). Type: City Creek Canyon, Salt Lake Townsendia minima Eastw., Leafl. W. Co., Utah, 18 Apr 1900, Stokes s.n. Bot. 1: 206. 1936. (ny). Type: Bryce Canyon, Garfield Co., Status: Rare; a putative hybrid be- Utah. 19 Jun 1933, Eastwood & Howell tween B. occidentalis Hook and B. papy- 727 (cAs). rifera Marsh. Status: Endemic, edaphically restric- Distribution: In Utah known only ted, possibly threatened. from the t}'pe locality; the hybrid is Distribution: Garfield and Kane widespread north of Utah (Dugle counties. Utah (Beaman 1957; Reveal 1966). 1970b). Ostrya knowltonii Coville, Gard. & Forest Viguiera soliceps Barneby. Leafl. W. Bot. 7:' 114. 1894. 10: 316. 1966. St.atus: Rare, disjunct in hanging Type: Locally plentiful on gumbo- gardens, along seeps and on slickrock clay knolls and bluffs, lower Cotton- in sandstone canyons. wood Canyon near its confluence with Distribution: Grand [Cottam 2145 Paria River, about 41 miles southeast and 556 [bry, utc]), Kane {Welsh & of Cannonville, Kane Co., Utah, 4,500 Toft 11871 [bry]), San Juan (Welsh feet, 12 Jun 1966, Barneby 14435 (ny). et al. 2939. 2961 and 3721; Moore Status: Endemic, local on Tropic 336; Welsh 11893; Welsh & Moore Shale formation, threatened (Ripley. 11783; Welsh & Atwood 11693 and E). 11711; Atwood 4103 [bry]); northern Distribution: Cottonwood Canyon Arizona, southwestern New Mexico east to Last Chance Canyon, Kane Co., and western Texas (Little 1953; Correll Utah (bry, utc). & Johnston 1970). Xanthocephalum sarothrae (Pursh) Shin- ners var. pomariense (Welsh) Welsh, Boraginaceae

comb, nov., based on Gutierrezia saro- Cryptantha barnebyi I. M. Johnston, J. thrae (Pursh) Britton & Rusby var. Arnold Arbor. 29: 240. 1948. pomariensis Welsh. Great Basin Nat. Type: Ca 30 miles south of Ouray 30: 19. 1970. on white shale knolls, Uintah Co., Utah, Type: Sand}' flat, base of sandstone 17 Jun 1947, Ripley & Barneby 8748 cliffs, Frontier formation, mouth of (gh). Orchard Creek Draw, Dinosaur N.M.. Status: Endemic, rare, threatened Uintah Co., Utah, 2 Oct 1969, Welsh (Ripley, T). et al. 9471 (bry). Distribution: Uintah Co., Utah Status: Endemic, rare and threat- (Higgins 1971). ened. flora (Osterh.) Payson, Distribution: Uintah Co., Utah Cryptantha brevi (Welsh 1970b). Ann. Missouri Bot. Gard. 14: 318. 1927, based on Oreocarya breviflora Osterh. ex Payson, Univ. Wyoming Publ. Sci., Berberidaceae Bot. 1: 169. 1926. Berberis fendleri A. Gray, Mem. Amer. Type: 6.5 miles north of Jensen, Acad. Arts II, 4: 5. 1849. Uintah Co., Utah, 19 Jun 1925, Oster- Status: Rare, floristically restricted hout 6414 (rm).

to seeps and hanging gardens. St.-vtus: Endemic. . locally common Distribution: San .luan (Maguirc ill the Uinta Basin, neither threatened 5904, Holmgren 13850 [utc]; Moore nor endangered (Ripley, E). .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 339

Distribution: Daggett, Duchesne Cryptantha jonesiana (Payson) Payson, and Uintah counties, Utah (Higgins Ann. Missouri Bot. Gard. 14: 323. 1971). 1927, based on Oreocarya jonesiana Payson, Univ. Wyoming Publ. Sci., Bot. Cryptantha capitata (Eastw.) I. M. 1: 168. 1926. Johnston, J. Arnold Arbor. 21: 66. 1941, Type: San Rafael Swell, Emery Co., based on Oreocarya capitata Eastw., Utah, 15 May 1914, M. E. Jones s.n. Leafl. W. Bot. 1: 9. 1937. (pom). Status: Rare and obscure. Status: Endemic, rare except in clay Distribution: Garfield, Kane, barrens in the San Rafael Swell, threat- Washington, and Wayne counties, ened (Ripley, E). Utah (Higgins 1971), and in Coconino Distribution: San Rafael Swell, Co., Arizona. Emery Co., Utah (Higgins 1971). Cryptantha compacta Higgins, Great Ba- Cryptantha longiflora (A. Nels. ) Payson, sin Nat. 28: 196. 1968. Ann. Missouri Bot. (7ard. 14: 326. Type: Ca 8 miles west of Desert 1927, based on Oreocarya loniflora A. Range Experiment Station headquar- Nels., Erythea 7: 67. 1899. ters, along Utah Highway 21, Millard Status: Rare and restricted in Grand Co., Utah, 18 Jun 1968/Higgins 1613 Valley. (bry). Distribution: Grand Co., Utah, Status: Endemic, rare and local, and west central Colorado (Higgins threatened (Ripley, T). 1971). Distribution: Millard Co., Utah (Higgins 1971). Cryptantha rnensana (M. E. Jones) Pay- son, Ann. Missouri Bot. Gard. 14: 333. Cryptantha elata (Eastw.) Payson, Ann. 1927, based on Krynitzkia rnensana M. Missouri Bot. Card. 14: 285. 1927, E. Jones, Contr. W. Bot. 13: 14. 1910. based on Oreocarya elata Eastw., Bull. Type: Emery, Emery Co., Utah, 16 Torrey Bot. Club 30: 241. 1903. May 1894, M. E. Jones 5445p (pom). Status: Rare and possibly threatened Status: Rare and restricted to clay (Ripley, T). soils; threatened. Distribution: Co., Utah, and Grand Distribution: Carbon, Emery, and adjacent Mesa Co., Colorado (Higgins Grand counties, Utah (Higgins 1971). 1971). Cryptantha ochroleuca Higgins, Great Ba- Cryptantha grahamii I. M. Johnston, J. sin Nat. 28: 197. 1968. Arnold Arbor. 20: 391. 1939. Type: On an outcrop 100 meters Type: On bench west of Green River, south of Red Canyon Campground, north of the mouth of Sand Wash, along Utah Highwav 12, 21 Jul 1968, Co., Utah, 28 Uintah May 1933, Higgins 1788 (bry)^ 7924 (gh). Graham Status: Endemic, rare and endan- Status: Endemic, locally abundant, gered (Ripley, E) on white shale outcrops along Willow Distribution: Garfield Co., Utah Creek, possibly threatened (Ripley, (Higgins 1971) . E). Distribution: Uintah Co., Utah Cryptantha osterhoutii (Payson) Payson, (Higgins 1971). Ann. Missouri Bot. Gard. 14: 329. 1927, based on Oreocarya osterhoutii Pavson, Cryptantha johnstonii Higgins, Great Ba- Univ. Wyoming Publ. Sci., Bot. 1:" 167. in Nat. 28: 195. 1968. 1926. Type: 15 miles west of U.S. High- Status: Rare or obscure. way 50-6 along the road from Wood- Distribution: Disjunct in Duchesne, side to Castle Dale, Emery Co., Utah, San Juan, and Wayne counties, Utah, 25 May 1968, Higgins 1510 (bry). and in Mesa Co., Colorado (Higgins Status: Endemic, locally common, 1971). threatened (Ripley, E). Distribution: Emery Co., Utah Cryptantha paradoxa (A. Nels.) Payson, (Higgins 1971). Ann. Missouri Bot. Gard. 14: 330. . .

340 GREAT BASIN NATURALIST Vol. 35, No. 4

1927, based on Oreocarya paradoxa A. Type: Court House Wash, near Nels., Bot. Gaz. 56: 69. 1913. Moab, Grand Co., Utah, 25 May 1892, Status: Rare, San Rafael Swell, Eastwood s.n. (cas). threatened. Status: Endemic, common and wide- Distribution: Emery Co., Utah, spread. western Colorado and northwestern Distribution: Carbon, Emery, Gar- New Mexico (Higgins 1971). field, Grand, and Wayne counties, Utah (Higgins 1971). Cryptantha rollinsii I. M. Johnston, J. Arnold Arbor. 20: 391. 1939. Hackelia patens (Nutt.) I. M. Johnston Type: Shale hillside on Thome's var. harrisonii J. L. Gentry, Southw. Ranch, near Willow Creek, ca 22 miles Naturahst 19: 140. 1974. 16 south of Ourav, Uintah Co., Utah, Type: Pine Valley Mts., ca 1.5 miles Jun 1937, Rollins 1715 (gh). up Forsyth Trail from Pine Valley, 30 locally common, Status: Endemic, May 1968, 7,300 feet, Gentry 2002 neither threatened nor endangered. (ny). Distribution: Uinta Basin, in both Status: Endemic, restricted but lo- Duchesne and Uintah counties, and on cally common. the San Rafael Swell, Emeny' Co., Utah Wasatch, and (Higgins 1971). Distribution: Utah, Washington counties, Utah (Gentry Cryptantha semiglabra Barneby, Leafl. 1974). W. Bot. 3: 197. 1943. Mertensia arizonica Greene, Pittonia 3: Status: Rare and restricted, threat- 197. 1897. ened (Ripley, T) Distribution: Vicinity of Fredonia, Type: "Arizona," without definite southern Coconino, and Mohave counties, Ari- locality, but more likely from zona, and in Washington Co., Utah Utah, 1869, Palmer s.n. (us). (Higgins 1971). Status: Endemic (?), locally com- mon; the var. arizonica is not known son, Ann. Cryptantha striata (Osterh.) Pay from Arizona in modern times. Missouri Bot. Card. 14: 264. 1927, based Distribution: Beaver, Garfield, Iron, on Oreocarya stricta Osterh., Bull. Tor- Piute, and Washington counties, Utah rey Bot. Club 50: 217. 1923. (Higgins 1972a). Status: Rare, but neither threatened nor endangered (Ripley, T) Mertensia viridis A. Nels. var. cana Distribution: Daggett, Summit, and (Rydb.) L. O. Williams, Ann. Missouri Uintah counties, Utah; also in Moffat Bot. Gard. 24: 115. 1937, based on M. Co., Colorado, and Carbon Co., Wyo- cana Rydb., Bull. Torre^' Bot. Club 36: ming (Higgins 1971). 698. 1909. Status: Rare and restricted, possibly Cryptantha tenuis (Eastw.) Payson, Ann. threatened. Missouri Bot. Gard. 14: 327. 1927, based on Oreocarya tenuis Eastw., Bull. Distribution: Bald Mtn., Summit Weber Torrey Bot. Club 30: 244. 1903. Co., Utah (Maguire 14699; 5894 [uTc] ) and north central Colorado Type: Court House Wash, near (Williams 1937; Higgins 1972a). Moab, Grand Co., Utah, 25 May 1892, Eastwood s.n. (cas). Mertensia viridis A. Nels. ^-ar. dilatata St.\tus: Endemic, common and wide- (A. Nels.) L. O. Williams, Ann Mis- spread. souri Bot. Gard. 24: 113. 1937, based on Distribution: Emery, Grand, San M. coriacea var. dilatata A. Nels., Bull. Juan, and eastern Wayne counties, Torrey Bot. Club 29: 403. 1902. Utah (Higgins 1971). Status: Rare, known from a single collection from the Uinta Mts. Cryptantha wether illii (Eastw.) Payson, Ann. Missouri Bot. Gard. 14: 324. Distribution: Daggett Co., Utah 1927, based on Oreocarya wetJierillii {Williams 599 |rm]); southeastern Eastw., Bull. Torrey Bot. Club 30: 242. Wyoming and adjacent Colorado (Wil- 1930. liams 1037; Higgins 1972a). Dec. 197'. WELSH. ET AL.: ENDANGERED UTAH PLANTS 341

Brassicaceae Status: Endangered or possibly ex- tirpated. Arabis deniissa Greene ^ar. languida Rol- Distribution: Flaming lins, Rhodora 43: 388. 1941. Gorge, Dag- gett Co., Utah, and adjacent Sweet- Status: Rare and possibly threat- water Co., Wyoming (Rollins 1953). ened (Ripley, T). Distribution: Daggett Co., Utah Draba sobolifera Rydb., Bull. Torrev Bot. (Rollins 1941); Albany and Sweet- Club 30: 251. 1903. water counties, Wyoming. Type: Marysvale, Piute Co., Utah, above timber line, 1894, M. E. Jones Arabis dcmissa Greene \c\r. russcola Rol- 5936 (us). lins, Rhodora 43: 387. 1941. Status: Endemic, rare and threat- Type: Ca 18 miles north of Vernal, ened (Ripley, T). Uintah Co., Utah, Jun 1937, Rollins Distribution: Garfield and Piute 1757 (gh). counties, Utah (Hitchcock 1941). Status: Rare and threatened (Rip- ley, T). Draba subalpina Goodman & Hitchc, Distribution: Daggett and Uintah Ann. Missouri Bot. Card. 19: 77. 1932. counties, Utah, and Albany Co., Wyo- Type: Cedar Breaks, Iron Co., Utah, ming (Rollins 1941). Goodman & Hitchcock 1622 (mo). Status: Endemic, infrequent and Caulanthus divaricatus Rollins. Contr. possibly threatened (Ripley, T). Gray Herb. 201: 8. 1971. Distribution: Garfield, Iron and Type: Ca 75 miles west of Blanding Kane counties, Utah (bry, utc). and 10 miles east of Hite, San Juan Co., Utah, 16 May 1961, Cronquist Draba zionensis C. L. Hitchc, Univ. 9033 (NY). Wash. Publ. Biol. 11: 49. 1941. Status: Endemic, rare though wide- Type: Zion Canyon, Washington Co., spread, neither threatened nor endan- Utah, 7 May 1923, M. E. Jones s.n. gered. (pom). Distribution: Carbon, Emery, Gar- Status: Endemic, rare and threat- field, Grand, San Juan, and Wayne ened (Ripley, T). counties, Utah (bry. utc). Distribution: Juab (Cottam 7201 UT) and Washington counties, Utah Draba maguirei C. L. Hitchc, Univ. (Hitchcock 1941). Wash. Publ. Biol. 11: 71. 1941. Type: Rocky soil on east slope of Mt. Glaucocarpum suffrutescens (Rollins) Naomi, Bear River Range, Cache Co., Rollins, Madrono 4: 233. 1938, based Rollins Utah, 9,600 feet, Maguire et al. 14161 on Thelypodium suffrutescens (wtu). in Graham, Ann. Carnegie Mus. 26: Status: Endemic, restricted and 244. 1937. possibly threatened. Type: West of Willow Creek, on Distribution: Cache Co.. Utah Thome's Ranch, eastern slope of Big (Hitchcock 1941). Pack Mtn., Uintah Co., Utah, 23 May 1935, Graham 8950 (gh). L. Hitchc. Draba maguirei C. var. burkei Status: Endemic, rare and endan- C. L. Hitchc, Univ. Wash. Publ. Biol. gered (Ripley, E). 11: 72. 1941. Distribution: Uintah Co., Utah; Type: Cottonwood Canyon, Wells- known only from the tApe locality ville Mts., Box Elder Co., Utah, 25 May (Rollins 1938). 1932, Burke 2968 (utj. Lepidium barnebyanum Reveal, Great Ba- Status: Endemic, restricted and sin Nat. 27: 178. 1967, based on L. mon- threatened. tanum Nutt. ex Torr. & Gray ssp. de- Distribution: Box Elder (Hitch- missum C. L. Hitchc, Madrofio 10: 157. cock 1941) and Weber {Clark 2332 1950. [bry, wsco]) counties, Utah. Type: Indian Creek Canyon, on Draba pectinipila Rollins, Rhodora 55: white shale ridge tops, ca 4 miles south- 231. 1953. west of Duchesne, Duchesne Co., Utah, . v

342 GREAT BASIN NATURALIST Vol. 35, No. 4

15 Jun 1947, Ripley & Barneby 8699 Type: American Fork Canyon, Utah (WTU). Co., Utah, 31 Jul 1880, M. E. Jones Status: Endemic, rare and endan- 1354 (ny). gered (Ripley, E). Status: Endemic, rare to locally com- Distribution: Duchesne Co., Utah; mon. knowTi onl}' from the type locality Distribution: Davis, Duchesne, (Reveal 1967). Juab, Salt Lake, Summit, Tooele, Uintah, Utah, Wasatch and Weber Lesquerella garrettii Payson, Ann. Mis- counties, Utah (RoUins & Shaw 1973). souri Bot. Gard. 8: 213. 1921. Type: Big Cottonwood Canyon, Salt Parrya rydbergii Botsch., Bot. Mater. Lake Co., Utah, 28 Jun 1908, Garrett Gerb. Bot. Inst. Komarova Akad. Nauk 1544 (mo). SSSR 17: 178. 1955, based on P. platy- Status: Endemic, rare and possibly carpa Rydb., Bull. Torrey Bot. Club 39: threatened (Ripley, T). 326. 1912, not Hook. f. & Thomas. Distribution: Salt Lake, Utah and Type: Uinta Mts., Aug 1869, Wat- Wasatch counties, Utah (Rollins & son 54 (ny). Shaw 1973). Status: Endemic, rare and threat- Lesquerella hemiphysaria Maguire, ened (Ripley, T). Distribution: Crest of the Amer. Midi. Naturalist 27: 456. 1942. Uinta Mts., Duchesne {Murdoch 54 [bry]) Type: Frequent, limestone breaks, and Daggett-Uintah counties {Waite south side of Middle Fork Park, Wa- 252 and 297 [bry]). satch Plateau, 10 Aug 1940, 10,800 feet, Maguire 20053 (utc). Physaria grahamii Morton in Graham, Status: Endemic, locally common Ann. Carnegie Mus. 26: 220. 1937. but restricted. Type: Chandler Canyon, Uintah Co., Distribution: Carbon, Emery, San- Utah, 3 Aug 1935, 6,000 feet, Graham pete, and Utah counties, Utah (Rollins 9976 (us). & Shaw 1973). Status: Endemic, rare and possibly extinct (Ripley, Lesquerella rubicundula Rollins, Contr. PoEx). Distribution: Uintah Co., Utah; Dudley Herb. 3: 178. 1941. known only from the type collection Type: Red Canyon, Garfield Co., as recent efforts to recollect this spe- Utah, 2,300 meters, 6 Jul 1912, Eggle- cies have failed (Waite 1973). ston 8198 (na, the type now trans- ferred to us). Thelypodium integrifolium (Nutt.) Endl. Status: Endemic, rare and threat- var. complanatum (Al-Shehbaz) Welsh ened (Ripley, T) & Reveal, stat. nov., based on T. in- Distribution: Garfield, Kane, and tegrifolium ssp. complanatum Al-Sheh- Piute counties, Utah (Reveal 1970a; baz, Contr. Gray Herb. 204: 105. 1973. Rollins & Shaw 1973). Status: Local and infrequent. Lesquerella tumulosa (Barneby) Reveal, Distribution: Box Elder Co., Utah Great Basin Nat. 30: 97. 1970, based (uTC; Al-Shehbaz 1973); found to the on L. hitchcockii Munz ssp. tumulosa west of LTtah. Barneby, Leafl. W. Bot. 10: 313. 1966. Thelypodium rollinsii Al-Shehbaz. Contr. Type: Bare white shale knolls, 6.5 Gray Herb. 204: 97. 1973. miles southeast of Cannonville, Kane Type: On alkaline soil in the vicinity Co., Utah, 12 Jun 1966, Barneby of the Sevier RiAer. ca 12 miles north 14424 (NYj. of Scipio along U.S. Highway 91, 29 Status: Endemic, rare and endan- Jul 1969, Al-Shehbaz & Al-Shehbaz gered. 6913 (gh). Distribution: Kane Co., Utah; Status: Endemic, locally common, known only from the type locality neither threatened nor endangered. (Reveal 1970a). Distribution: Carbon, Juab, Mil- Lesquerella utahensis Rydb., Bull. Torre lard, Piute, Sanpete, and Sevier coun- Bot. Club 30: 252. 1903. ties, Utah (Al-Shehbaz 1973). Dec. 1975 WELSH. ET AL.: ENDANGERED UTAH PLANTS 343

Thelypodium sagittatum (Nutt.) Endl. Status: Restricted and rare. ex Walp. var. ovalifoUum (Rydb.) Distribution: Washington Co., Welsh & Reveal, stat. & comb, nov., Utah, and adjacent Nevada and Arizona based on T. ovaJifoUum Rydb., Bull. (Benson 1969b). Torrey Hot. Club 30: 253. 1903. Pediocactus silcri (Engelm.) L. Type: Pangnitch Lake, Garfield Co., Benson, Cact. Succ. .1. (Los Angeles) 33: Utah, 7 Sep 1894, M. E. Jones 601 5e 53. 1961, based on Echinocactus sileri (us). En- gelm. ex Coulter, Contr. U.S. Status: Rare and restricted, possibly Natl. Herb. 3: 376. 1896. threatened. Distribution: Garfield and Iron Type: Cottonwood Springs and Pipe counties, Utah, and White Pine Co.. Springs, supposedly from southern Nevada (Al-Shehbaz 1973). Utah but more likely from Arizona, 1883, Siler s.n. {mo)/ Cactaceae Status: Arizona Strip endemic, rare, local and endangered (Ripley, E). Echinocereus engelmannii (Parry) Le- Distribution: Washington Co., maire var. purpurcus L. Benson, Cact. Utah {Welsh 12712 [bry]), and Succ. J. (Los Angeles) 41: 127. 1969. northern Arizona (bry; Benson 1969b). Type: Mojavean desert north of St. Sclerocactus glaucus (K. Schum.) L. Ben- George, Washington Co., Utah, 5 May son, Cact. Succ. J. (Los Angeles) 38: 53. 1949, 2,900 feet, Benson 15637 (pom). Status: Endemic, rare and endan- 1966, based on Echinocactus glaucus K. gered (Ripley, E). Schum., Gessammtb. Kakt. 438. 1898. Distribution: Washington Co., Status: Rare, possibly Utah; known only from the vicinity of extirpated from (Ripley, E). the type locality (Benson 1969b). Utah Distribution: Duchesne and Uintah Ferocactus acanthodes (Lemaire) Britton counties, Utah, and Delta Co., Colorado & Rose, Publ. Carnegie Inst. Wash. 248 (Benson 1966). (3): 129. 1922, based on Echinocactus Sclerocactus pubispinus acanthodes Lemaire, Cact. Gen. Nov. (Engelm.) L.Ben- son, Cact. Succ. J. (Los Sp. 106. 1839. Angeles) 38: 103. 1966, based on Echinocactus pubi- Status: Restricted and endangered. spinus Engelm., Trans. Acad. Sci. St. Distribution: Washington Co., Louis 2: 199. 1863. Utah (bry); southern Nevada, Arizona Status: and California (Benson 1969b). Rare and threatened (Rip- ley,T). Mammillaria tetrancistra Engelm., Amer. Distribution: Box Elder, Beaver, J. Sci. Arts II, 14: 337. 1852. and Sevier counties, Utah, and Elko Status: Restricted and rare, possibly Co., Nevada (Benson 1966). threatened. Sclerocactus pubispinus (Engelm.) L. Distribution: Washington Co., Benson var. sileri L. Benson, Cact. Utah; southern Nevada, California, and Arizona (Benson 1969b). Ariz. ed. 3, 23. 1969. Type: Southern Utah, 1888, Siler s.n. Opuntia pulchella Engelm., Trans. Acad. (PH). Sci. St. Louis 2: 201. 1863. St.\tus: Rare and now extirpated Status: Rare, restricted and possibly from Utah. threatened. Distribution: Kane Co., Utah, and Distribution: Millard Co., Utah Coconino Co., Arizona (Benson 1969b). (bry); Nevada and Arizona (Benson Sclerocactus whipplei (Engelm. Bige- 1957). This species includes those en- & low) Britton & Rose var. spinosior tities included in Micropuntia by Das- (Engelm.) Boissev. in Boissev. Da- ton (1946). & vidson, Colorado Cacti 51. 1940, based Opuntia whipplei Engelm. & Bigelow var. on Echinocactus whipplei var. spinosior multigeniculata L. Benson, Cact. Ariz. Engelm., Trans. Acad. Sci. St. Louis ed. 3, 38. 1969. 2: 199. 1863. 344 GREAT BASIN NATURALIST Vol. 35, No. 4

Type: South of the Great Sah Lake Kane, Iron, and Wayne counties, Utah Desert, 19 Jul 1859, H. Engelmann s.n. (Maguire 1947b). (mo). Silene petersonii Maguire, Madroiio 6: Status: Rare to locally common, 24. 1941. neither threatened nor endangered. Type: Skyline Drive, 1 mile above Atriplex bonnevillensis C. A. Hanson, restricted but neither threatened nor Stud. Syst. Bot. 1: 2. 1962. endangered. Type: Dry lake bed 1.5 miles north- Distribution: Duchesne, Emery, east of Desert Range Experiment Sta- Garfield, Grand, Kane, and Wayne tion headquarters, Millard Co., 12 Jul counties, Utah (bry), and Colorado 1961, Hanson 554 (bry). (Harrington 1954). Status: Restricted, though locally abundant, possibly threatened. Cleomella placosperma S. Wats, in King, Distribution: Juab and Millard Rep. Geol. Explor. 40th Parallel 5: 33. counties, (bry), and Nevada 1871. Utah Status: Restricted and rare, possibly (Hanson 1962b). threatened. Atriplex garrettii Rydb., Bull. Torrev Bot. Distribution: Iron Co., Utah (bry), Club 39: 312. 1912. and Nevada (Shaw 1970). Type: Vicinity of Moab, Grand Co., Utah, 1 Jul 1911, Rydberg & Garrett Caryophyllaceae 8465 (ny). St.a,tus: Colorado River drainage, en- Arenaria kingii (S. Wats.) M. E. Jones restricted locally common. var. plateauensis (Maguire) Reveal, demic, but Garfield, Grand, Stat, nov., based on A. kingii ssp. Distribution: counties, Utah plateauensis Maguire, Bull. Torrey Bot. Kane, and San Juan reported from Colorado Club 74: 54. 1947. (bry), and (Harrington 1954). Type: Cedar Breaks Rim, Iron Co., Utah, 23 Jun 1940, 10.400 feet, Ma- Atriplex obovata Moq., Chenop. Enum. guire 19024 (uTc). 61. 1840. Status: Endemic, locally common, Status: Restricted, rare and possibly neither threatened nor endangered. threatened. Distribution: Beaver, Garfield, Distribution: San Juan Co., Utah;

h lau fliul no indication that such a combination pubspinus. made. According to Benson (1966), this name is a synon.^^n of .V. inibispiiuis (Engohii.i I.. Benson var. Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 345

rather common in Arizona, New Mexi- Juan {Welsh & Toft 11874 [bry]), and co and Mexico (Hanson 1692b). from northern Arizona, southern Ne- vada, and southern California to Cen- Atriplex welshii C. A. Hanson, Stud. tral America (Kearney & Peebles 1951). Syst. Bot. 1: 1. 1962. Type: 4 miles south of Cisco along ElaEAGNACEAE Utah Highway 128, Grand Co., Utah, 5 Jul 1961, Hanson 522 (bry). Elaeagnus commutata Bemh., Allg. Thij- Status: Endemic, restricted and pos- ring. Gartenzeitung 2: 137. 1843. sibly threatened. Status: Restricted, local and possibly Distribution: Carbon and Grand extirpated from Utah.

counties, Utah (bry) . Distribution: Daggett {Julander J56 [bry]) and Summit {Welsh &

Cucurbitaceae Moore 6724 [bry] ) counties, Utah; widespread northward to Alaska Cucurbita foetidissima H.B.K., Nov. Gen. (Welsh 1974b). &Sp. 2: 123. 1817. Status: Restricted, but locally com- Ericaceae mon and often weedy, neither threat- ened nor endangered. Arctostaphylos pringlei Parry, Bull. Distribution: San Juan {Welsh et Calif. Acad. Sci. 2: 494. 1887. al. 2992 [bry]), and Washington (bry) Status: Local, rare, possibly threat- counties, Utah, and widespread else- ened. where. Distribution: Washington Co., Utah {Higgins 665 and 3414 [bry]; Higgins CUSCUTACEAE 1972b). Cuscuta warneri Yuncker, Brittonia 12: EUPHORBIACEAE 38. 1960. Euphorbia nephradenia Leafl. Type: Vicinity of Powell, 15 miles Barneby, Bot. 10: 314. 1966. west of Fillmore, Millard Co., Utah, W. Type: Lower Cottonwood Canyon, 10 Sep 1957, on Phyla cuneifolia, War- about 41 miles southeast of Cannonville, ner s.n. (uTc). Status: Endemic, possibly extinct Kane Co., Utah, 12 Jun 1966, 4,500 (Ripley, PoEx). feet, Barneby 14434 (ny). Status: Endemic, restricted edaph- Distribution: Millard Co., Utah; ically, threatened (Ripley, T). kno\vn only from the type collection (Yuncker 1960, 1965). Distribution: Emery, Kane, and Wayne counties, Utah (bry). Cyperaceae Fabaceae Carex curatorum Stacey, Leafl. W. Bot. Astragalus adanus A. Nels., Bot. Gaz. 53: 2: 213. 1937. 222. 1912. Status: Rare and restricted to spec- Status: Rare and possibly extirpated ialized habitats; threatened. from Utah. Distribution: San Juan Co., Utah Distribution: Juab Co., Utah; wide- {Welsh 12425 [bry]), and in Grand spread in Idaho (Barneby 1964). Canyon, Arizona (Stacey 1937). Astragalus adsurgens Pallas ssp. robus- Cladium californicum (S. Wats.) O'Neill tior (Hook.) Welsh, Iowa State Coll. in Tidestr. Kittell, Fl. & Arizona & N. J. Sci. 37: 357. 1963, based on A. ad- Mex. 773. 1941, based on C. mariscus surgens var. robustior Hook., Fl. Bo- var. californicum S. Wats., Bot. Calif. reali-Amer. 1: 149. 1831. 2: 224. 1880. Status: Restricted, rare and possibly Status: Rare, restricted and endan- threatened. gered. Distribution: Daggett Co., Utah Distribution: Kane {Welsh & At- {Hanson 283a [bry]); widespread wood 11709; Welsh & Moore 11780; east of the continental divide north- Welsh & Toft 11870 [bry]) and San ward to Alaska (Welsh 1974b). .

346 GREAT BASIN NATURALIST Vol. 35, No. 4

Astragalus alpinus L., Sp. PI. 760. 1753. Rupert C. Rarneby of the New York Ro- Status: Rare and local, possibly tanical Garden. threatened. Astragalus bodinii Sheldon, Minnesota Distribution: Grand {Holmgren et Rot. Stud. 1: 122. 1894. al. 232J [bry, ny, utc] and Salt Lake ) Status: Rare and endangered. (ut, without collector) counties; wide- Distribution: Co., Utah spread in North America and Eurasia Wayne (bry); widespread in Alaska, (Welsh 1974b). Canada, Colorado, Wyoming, and one record Astragalus ampullarius S. Wats., Amer. from Nebraska (Rarneby 1964). Naturalist 7: 300. 1873. Astragalus brandegei Porter in Porter Type: Kanab, Kane Co., Utah, 1872, & Coulter, Syn. Fl. Colo. 24. 1872. Thompson s.n. (gh). Status: Rare and obscure, probably Status: Arizona strip endemic, threatened. edaphically restricted and though Distribution: Carbon, Emery, Gar- locally common, probably threatened field, Piute, and counties, (Ripley, T). Wayne Utah also in Mexico, Distribution: Kane and Washington (bry) ; Colorado, New and Arizona (Rarneby 1964). counties, Utah, and northernmost Co- conino and Mohave counties, Arizona Astragalus bryantii Rarneby, Proc. Calif. (bry,- Rarneby 1964). Acad. Sci. IV, 25: 156. 1944. Status: Probably extirpated from Astragalus asclepiadoides M. E. Jones, Utah. Zoe2: 238. 1891. Distribution: Kane Co., Utah, in Type: Cisco, Grand Co., Utah, 21 Jun Glen Canyon, the collection area inun- 1889, M. E. Jones s.n. (pom) dated by Lake Powell; also in northern Status: Edaphically restricted al- Arizona (Rarneby 1964). though locall}' common, neither threat- ened nor endangered. Astragalus callithrix Rarneby, Leafl. W. Distribution: Carbon, Duchesne, Rot. 3: 102. 1942. Emery, Garfield, Grand, Sanpete, Se- Status: Rare and restricted, possibly vier (ut), Uintah, and Wayne coun- threatened (Ripley, T) ties, Utah (bry, utc), and western Distribution: Millard Co., Utah Colorado (Rarneby 1964). (bry); otherwise known only from two locations in Nye Co., Nevada. Astragalus austrails Lam., Fl. Frang. 2: 637. 1778. Astragalus castaneiformis S. Wats. var. Amer. Midi. Status: Possibly extirpated from consobrinus Rarneby, Utah. Naturalist 41: 496. 1949. Type: Southeast of Ricknell, Wayne Distribution: Piute (?) Co., Utah 10 7,600 feet, (Rarneby 1964). Co., Utah, Jun 1947, Ripley & Barneby 8605 (cas). Astragalus barneby Welsh & Atwood, Status: Endemic, rare and obscure, nom. nov., based on A. desperatus M. possibly threatened. E. Jones var. conspectus Rarneby, Distribution: Garfield, Piute, Se- Leafl. W. Rot. 5: 87. 1948. vier, and Wayne counties, Utah (Rar- Status: Rare, restricted and threat- neby 1964). ened (Ripley, T). Astragalus chloodes Rarneby, Leafl. W. Distribution: Garfield Co., Utah Rot. 5: 6. 1947. (bry), and in Navajo and Coconino Type: Ca 6 miles southeast of Jen- counties, Arizona (Rarneby 1964). sen, Uintah Co., Utah, 7 Jun 1946, Ripley & Barneby 7797 (g.\s). This remarkable milkvetch is adequate- Status: Endemic, rare and threat- ly distinct on account of size of flower and ened (Ripley, T). parts, and because of stature to segregate Distribution: Uintah Co., Utah it from its near and mirror-imaged cog- (BRY. utc). ener A. desperatus. The name change honors the author of the monumental Astragalus coltonii M. E. Jones, Zoe 2: "Atlas of North American Astragalus," 237. 1891. .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 347

TYPE: Canyons of the Coal Range Status: Endemic and possibly ex- east of Castle Gate, 27 .Tun 1889, M. tinct (Ripley, PrEx).

E. Jones s.n. (pom) . Distribution: Sanpete Co., Utah Status: Endemic, locally abundant, (Barneby 1964). neither threatened nor endangered. Our Astragalus detritalis M. E. Jones, Contr. plant is var. coltonii. Distribution: Carbon, Emery, Gar- W. Bot. 13: 9. 1910. Type: Ca 4 miles above Theodore field, Kane, Sevier, and Wayne coun- on the Colton road, Du- [ Duchesne] ties, Utah (bry, ut. utc) . chesne Co., Utah, 11 May 1908, M. Astragalus convaUarius Greene var. finiti- E. Jones s.n. (pom). mus Barneby, Leafl. W. Bot. 7: 192. Status: Uinta Basin endemic, local 1954. and possibly endangered (Ripley, E) Type: Ca 3 miles south of Enterprise, Distribution: Duchesne and Uintah Washington Co., Utah, 11 Jun 1942, counties, Utah, and Rio Blanco Co., Ripley & Barneby 4767 (gas). Colorado (bry). Status: Rare and local, threatened Astragalus diversifolius A. Gray, Proc. ^(Ripley, T). Amer. Acad. Arts 6: 230. 1864. Distribution: Washington Co., Utah, Status: Rare, chsjunct and possibly and adjacent Nevada (Barneby 1964). extirpated from Utah. Astragalus cottamii Welsh, Rhodora 72: Distribution: Juab and Tooele coun- 189. 1970. ties; also in southern Idaho where rare Type: Ca 4 miles east of Clay Hills (Barneby 1964). divide, San Juan Co., Utah, 1 May Astragalus duchesnensis M. E. Jones, 1966, Welsh 5207 (bry). Contr. W. Bot. 13: 9. 1910. Status: Restricted and local, possibly Type: Ca 1 3 miles below Theodore threatened (Ripley, T). [Duchesne] toward Chepeta Well, Du- Distribution: San Juan Co., Utah, chesne Co., Utah, 23 May 1908, M. and adjacent Monument Valley, Ari- E. Jones s.n. (pom). zona (bry). Status: Endemic, restricted and Astragalus cronquistii Barneby, Mem. threatened (Ripley, T). New York Bot. Gard. 13: 258. 1964. Distribution: Duchesne and Uintah Type: In desert along west side of counties, Utah (bry). Comb Wash, 9 miles west of Bluff, Astragalus eastwoodae M. E. Jones, Zoe San Juan Co., Utah, 27 May 1961, 4: 368. based on A. preussii var. Cronquist 9123 (ny). 1894, sulcatus M. E. Jones, Zoe 4: 37. 1893. Status: Endemic and very restricted, Type: Westwater, Grand Co., Utah endangered (Ripley, E). (incorrectly given as "Colorado"), 6 Distribution: San Juan Co., Utah 1891^ M. E. Jones s.n. (pom). (bry, utc). May St.^tus: Rare, disjunct and possibly Astragalus cymboides M. E. Jones, Proc. threatened. Calif. Acad. Sci. II, 5: 650. 1895. Distribution: Emery, Grand, and Type: Huntington, Emery Co., Utah, San Juan counties, Utah; also in west 16 Jun 1894, at 5,000 feet, M. E. Jones central Colorado (Barneby 1964). 5464] (pom). Status: Endemic, locally common Astragalus emoryanus (Rydb.) Cory, to abundant, neither threatened nor Rhodora 38: 406. 1936, based on endangered. Hamosa emoryana Rydb., Bull. Torrey Distribution: Carbon, Emery, Bot. Club 54: 237. 1927. Grand, and San Juan counties, Utah Status: Rare and endangered. (bry). Distribution: Kane {Atwood 4629

[bry] ) Co., Utah; Arizona, New Mex- Astragalus deserticus Barneby, Mem. New ico, Texas, and Mexico (Barneby York Bot. Gard. 13: 634. 1964. 1964). Type: Common on slopes near In- dianola, 17 Jun 1909, Tidestrom 2249 Astragalus ensiformis M. E. Jones, Rev. (GH). Astrag. 226. 1923. 348 GREAT BASIN NATURALIST Vol. 35, No. 4

Status: Rare and local; threatened Utah, 24 May 1950, Hamilton & Beath (Ripley, T). s.n. (rm). Distribution: Washington Co., Status: Endemic, rare and local, en- Utah, and Mohave Co., Arizona (bry). dangered (Ripley, E). Distribution: Uintah Co., Utah Astragalus eucosmus B. L. Robinson, Rho- (bry). dora 10: 33. 1908. Status: Possibly extirpated. Astragalus harrisonii Barneby, Mem. New York Bot. Card. 13: 271. 1964. Distribution: Summit Co. , Utah; widespread in northern North America Type: Wash below the Natural (Barneby 1964; Welsh 1974b). Bridge, near Fruita, Wayne Co., Utah, 8 Jun 1961, Barneby 15131 (cas). Astragalus eurekensis M. E. Jones, Contr. Status: Endemic, rare and endan- W. Bot. 8: 12. 1898. gered (Ripley, E). Type: Eureka, Juab Co., Utah, 1891, Distribution: Wa3'ne Co., Utah; M. E. Jones s.n. (pom). known only from the type area (bry) . Status: Endemic, locall}' common to abundant, neither threatened nor Astragalus iodanthus S. Wats, in King, endangered. Rep. Geol. Explor. 40th Parallel 5: 70. Distribution: Juab, Iron, Millard, 1871. Sanpete, Tooele, and Utah counties, Status: Rare and possibly extirpated Utah (bry,- Barneby 1964). from Utah. Distribution: Tooele Co., Utah; Astragalus flavus Nutt. ex Torr. & Gray widespread to the west of Utah (Bar- var. argillosus (M. E. Jones) Barneby, neby 1964). Mem. New York Bot. Card. 13: 401. 1964, based on A. argillosus M. E. Astragalus iselyi Welsh, Great Basin Nat. Jones, Zoe2: 241. 1891. 34: 305. 1974. Type: Green River, Emery Co., Utah, Type: Brumley Bridge, ca 1.5 miles 7 May 1890, M. E. Jones s.n. (pom). north of Pack Creek Ranch, San Juan Status: Endemic, restricted edaph- Co., Utah, 5 May 1971, Welsh 10970 ically but locally common, neither (bry). threatened nor endangered. Status: Endemic, edaphically re- stricted, Distribution: Emer\ , Garfield, endangered. Grand, and Wayne counties, Utah Distribution: Grand and San Juan (bry). counties, Utah (bry,- Welsh 1974a).

Astragalus gilviflorus Sheldon, Minne- Astragalus jejunus S. Wats, in King, Rep. sota Bot. Stud. 1: 21. 1894, based on Geol. Explor. 40th Parallel 5: 73. 1871. A. triphyllus Pursh, Fl. Amer. Sept. 2: Status: Rare and restricted, possibly 740. 1814, not Pallas. threatened. Status: Rare or possibly extirpated Distribution: Rich Co., Utah (Bar- from Utah. neby 1964); southwestern Wyoming Distribution: Summit Co., Utah and in an isolated location in White (uTc); widespread east of the conti- Pine Co., Nevada. nental divide (Barneby 1964). Astragalus kentrophyta A. Gra} var. Astragalus hallii A. Grav var. fallax (S. coloradoensis M. E. Jones, Contr. W. Wats.) Barneby, Leaff. W. Bot. 9: 91. Bot. 10: 63. 1902. 1960, based on A. fallax S. Wats., Proc. Status: Navajo Basin endemic; rare Amer. Acad. Arts 20: 362. 1885. to locally common but probably threat-

Status: Rare and local, possibly ened . threatened. Distribution: Garfield, Kane, San Distribution: Garfield and Kane Juan, and Wayne counties, Utah (bry), counties, Utah (bry). and adjacent northern Arizona (Bar- neby 1964). Astragalus hamiltonii C. L. Porter, Rho- dora 54: 159. 1952. Astragalus lancearius A. Gra>-, Proc. Type: On the Wasatch formation 5 Amer. Acad. Arts 13: 370. 1878. miles south of Vernal, Uintah Co., Status: Rare and local in generalized .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 349

habitats; possibly threatened (Ripley, (bry), Mohave Co., Arizona, and T). Clark Co., Nevada (Schoener 1975). Distribution: Kane (bry) and Astragalus lentiginosus Dougl. ex Hook, Washington counties, Utah and in Co- var. ursinus (A. Gray) Barneby, Leafl. conino and MohaA'e counties, Arizona W. Bot. 4: 133. 1945, based on A. (bry,- Barneby 1964). ursinus A. Gray, Proc. Amer. Acad. Art Astragalus lentiginosus Dougl. ex Hook, 13: 367. 1878. var. chartaceous M. E. Jones, Proc. Type: Bear Valley, in south central Calif. Acad. Sci. II, 5: 673. 1895. Utah, 1877, Palmer s.n. (gh). Type: Ephraim, Sanpete Co., Utah, Status: Endemic, possibly extinct. 13 Jul 1894, 6,000 feet, M. E. Jones Distribution: Iron (or possibly Se- 5627m (pom). vier) Co., Utah; perhaps the specimens Status: Rare and local, possibly are mislabeled." threatened (Ripley, PoEx, Tax?).^ Astragalus limnocharis Barneby, Leafl. Distribution: Daggett, Juab, San- W. Bot. 4: 236. 1946. pete, Sevier, Summit, and Tooele coun- Type: Gravelly beach of Navajo ties, Utah, and widespread from Colo- Lake, at Spruce Forest Camp, Iron Co., rado, Wyoming, Idaho, Oregon, Cali- Utah, 13 Jul 1940, Maguire 19474 fornia, and Nevada (Schoener 1975). (ny). Status: Endemic, rare and restricted; Astragalus lentiginosus Dougl. ex Hook, threatened. var. fremontii (Gray ex Torr.) S. Wats, Distribution: Iron and Kane (bry) in King, Rep. Geol. Explor. 40th Paral- counties, Utah (Barneby 1964). lel 5: 66. 1871, based on A. fremontii Gray ex Torr. in Whipple, Explor. & Astragalus loanus Barneby, Mem. New Surv. Railroad Route from Mississippi York Bot. Gard. 13: 661. 1964, based River to Pacific Ocean 4(5): 80. 1857. on A. newberryi var. wardianus Bar- Status: Rare and ephemeral, pos- neby, Amer. Midi. Naturalist 37: 481. sibly threatened. 1947. Distribution: Washington Co., Utah Type: Canyon east of Glenwood, Se- (bry,- Schoener 1974); widespread in vier Co., Utah, 1875, Ward 223 (gh). southern Nevada and adjacent Cali- Status: Endemic, rare and threat- fornia (Barneby 1964). ened (Ripley, E) Distribution: Garfield, Piute, Sevier Astragalus lentiginosus Dougl. ex Hook, and Wayne counties, Utah (bry). var. scorpionis M. E. Jones, Rev. Astrag. 124. 1923. Astragalus lutosus M. E. Jones, Contr. W. Bot. 13: 7. 1910. Status: Rare and local; possibly River, Uintah Co., threatened. Type: White Utah, 25 May 1958, 5,200 feet, M. E. Jones Distribution: Juab Co., Utah s.n. (pom). (Schoener 1975), and Nevada (Barne- Status: Uinta Basin endemic, rare by 1964). and edaphically restricted; endangered Astragalus lentiginosus Dougl. ex Hook, (Ripley, E). var. stramineus (Rydb.) Barneby, Leafl. Distribution: Uintah Co., Utah, and W. Bot. 4: 122. 1945, based on Cystium Rio Blanco Co. Colorado (Barneby stramineum Rydb., N. Amer. Fl. 24: 1964). 409. 1929. Astragalus malacoides Barneby, Mem. Type: Southern Utah, 1870, Palmer New York Bot. Gard. 13: 500. 1964. s.n. (ny). Type: Northeast slope of Kaiparowits Status: Locally common, restricted, Plateau, south of Willow Tank, Kane neither threatened nor endangered. Co., Utah, 9 May 1939, fJarrison 9069 Distribution: Washington Co., Utah (us).

'Schooner (1975) has deteirmined that this name includes var. platyphrllidius (Rydb.) M. E. Peck, and therefore de- fines the taxon differently from Ripley (1975). "This variety was reduced to sj-nonjnny luider var. palans (M. E. .Tones) M E. Jones bj- Schoener (1975), but that taxon is currentlj' known only from the valleys of the Colorado and Virgin rivers. The exaction location of "Bear Valley" has not been determined (McVaugh 1956). .

350 GREAT BASIN NATURALIST Vol. 35, No. 4

Status: Endemic, restricted though Status: Rare and threatened (Rip- locallv common; threatened (Riplev, ley,T). ' ^ E). " Distribution: Iron Co., Utah (bry), , Distribution: Kane Co., Utah (bry). and adjacent Nevada (Barneby 1964).

Astragalus minthorniae (Rydb.) Jeps. var. Astragalus pardalinus (Rydb.) Barneby, gracilior (Barneby) Barneby, Amer. Mem. New York Bot. Gard. 13: 883. Midi. Naturalist 55: 493. 1956, based 1964, based on Phaca pardalina Rvdb.. on A. ensiformis var. gracilior Barne- N. Amer. Fl. 24: 352. 1929. by Proc. Calif. Acad. Sci. IV. 25: 158. Type: Cedar Mtn., Emery Co., Utah, 1944. 20 May 1915, M. E. Jones s.n. (ny). Type: Ca 5 miles south of Veyo, Status: Endemic, restricted though Washington Co., Utah, 4,900 feet, Rip- locally common, neither threatened nor ley & Barneby 4951 (cas). endangered (Ripley, E). Status: Endemic (?), locally com- Distribution: Emery, Garfield, and mon in disjunct populations, possibly Wayne counties, Utah (bry). threatened (Ripley, E). Distribution: Washington Co., Astragalus perianus Barneby, Mem. New Utah (bry), and possibly in Mohave York Bot. Gard. 13: 973. 1964. Co., Arizona. Type: Mountains north of Bullion Creek, near Marvsvale, Piute Co., Utah, Astragalus monumentalis Barneb^'. Leafl. 23 Jul 1905, Rydberg & Carlton 7104 Bot. 7: 35. 1953. W. (ny). Type: White Canyon, 25 miles south- Status: Endemic and threatened east of Hite, San Juan Co., Utah, 18 (Ripley, PoEx). 1950. Harrison 11595 (us). May Distribution: Piute (Barneby 1964) Status: Endemic, rare and restricted and Garfield (bry) counties. Utah." edaphically, possibly threatened. Distribution: Garfield and San Juan Astragalus pinonis M. E. Jones, Contr. W.

counties, Utah (bry) . Bot. 8: 14. 1898. Astragalus musiniensis M. E. Jones, Proc. Type: Frisco, Beaver Co., Utah, 22 Calif. Acad. Sci. II, 5: 671. 1895. Jun 1880, ca 8,000 feet. M. E. Jones Type: San Rafael Swell. Emery (?) s.n. (pom). Co., Utah, 12 May 1914, \1. E. Jones Status: Rare and possibly extirpated. s.n. (pom). Distribution: Beaver and Juab Status: Endemic, rare to common, counties. Utah, and in east central Ne- neither threatened nor endangered. vada (Barneby 1964). Distribution: Carbon. Emery, Gar- Astragalus platytropis A. Gray. Proc. field, Grand, and Wayne counties, Amer. Acad. Arts 6: 526. 1865. Utah (bry). Status: Rare and local, both edaph- Astragalus nidularius Barnebv. Leafl. W. ically and altitudinally restricted. Bot. 8: 16. 1956. Distribution: Western Beaver Type: Near the head of White Can- (bry) and Tooele counties. Utah, and yon, 2 miles below the Kachina Bridge much of Nevada and adjacent Cali- of Natural Bridges N.M.. Barneby fornia (Barneby 1964). 12778 (cas). Status: Endemic, restricted and lo- Astragalus rafaelensis M. E. Jones, Rev. cal, disjunct in several main locations, Astrag. 146. 1923. neither threatened nor endangered. Type: Near Cedar Mtn., Emery Co., (Ripley, T) Utah, 19 May 1915, M. E. Jones s.n. Distribution: Ciarfield, San Juan, (pom). and Wayne counties, Utah (bry). Status: Endemic, restricted edaph-

Astragalus oophorus S. Wats. var. loncho- ically, threatened (Ripley, T). caly.r Barneby. Leafl. W. Bot. 7: 194. Distribution: San Rafael Swell, 1954. Emery Co., Utah (bry)..

"This species, previously known only from the type coUeclioii. was rediscovered in 1073; one of many species though be extinct but found diunng 1975 as a result of the interest generated by the Smithsonian Report. Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 351

Astragalus sabulosus M. E. Jones, Zoe 2: Naturalist M -. 466. 1947, based on A. 239. 1891. shortianus var. brachylobus A. Gray, Type: Cisco, Grand Co., Utah, 2 May Proc. Amer. Acad. Arts 13: 367. 1878. 1890, M. E. Jones s.n. (pom). Status: Rare and possibly extirpated Status: Endemic, rare and edaph- from Utah. ically restricted; threatened. Distribution: Washington Co., Utah Distribution: Grand Co., Utah (bry; (Barneby 1964). Welsh 1974a). Astragalus tctrapterus A. Gray, Proc. Astragalus saurinus Barneby, Leafl. W. Amer. Acad. Arts 13: 369. 1878. Bot. 8: 17. 1956. Type: Ca 25 miles north of St. Type: Dinosaur N.M., 6 miles north George, Washington Co., Utah, 1877, of Jensen, Uintah Co., Utah, 26 Jun Palmer 111 (gh). 1953, Holmgren & Tillett 9527 (ny). Status: Restricted but locally com- Status: Endemic, rare and edaph- mon to abundant, possibly threatened. ically restricted; threatened (Ripley, Distribution: Beaver, Iron, Kane,

E). and Washington counties, Utah (bry) ; Distribution: Uintah Co., Utah also in northwestern Arizona (bry), (bry. utc). Nevada, and Oregon (Barneby 1964).

Astragalus serpens M. E. Jones. Proc. Astragalus wardii A. Gray, Proc. Amer. Calif. Acad. Sci. II, 5: 641. 1895. Acad. Arts 12: 55. 1876. Type: Loa Pass, Wayne Co., Utah, Type: On the edge of the Aquarius 17 Jul 1894, M. E. Jones 56391 (pom). Plateau, Sevier Co., Utah, 1875, 8,700 Status: Endemic, local and period- feet. Ward 424 (gh). ically abundant in disjunct populations, Status: Endemic, local and disjunct, neither threatened nor endangered neither threatened nor endangered. (Ripley, E). Distribution: Garfield, Kane, Piute, Distribution: Garfield, Piute and and Sevier counties, Utah (bry). Wayne counties, Utah (bry). Astragalus wetherillii M. E. Jones, Zoe Astragalus stocksii Welsh, Great Basin 4: 34. 1893. Nat. 34: 307. 1974. Type: Henry Mts., Penellen Pass, Status: Possible extirpated from Garfield Co., Utah, 30 May 1972, Utah (Ripley, T). Welsh 11740 (bry). Distribution: Grand Co., Utah, and Status: Endemic, rare and local; west central Colorado (Barneby 1964). threatened. Astragalus woodruffii M. E. Jones, Rev. Distribution: Garfield Co., Utah; Astrag. 77. 1923. known only from the type area (bry). Type: On the sandy foot of the San Astragalus striatiflorus M. E. Jones, Proc. Rafael Swell, Emery (?) Co., Utah, Calif. Acad. Sci. II, 5: 643. 1895. 17-18 May 1914, M. E. Jones s.n. Type: Above Springdale, Washing- (pom). ton Co., Utah, 25 Sep 1894, 4,000 feet, Status: Endemic, Local and edaph- M. E. Jones 6080k (pom). ically restricted, possibly threatened. Status: Rare and edaphically re- Distribution: Emery, Wayne, and stricted; endangered (Ripley, T). possibly Garfield counties, Utah (bry). Distribution: Kane and Washing- ton counties, Utah, and Coconino Co., Dalea epica Welsh, Great Basin Nat. 31:

Arizona (bry) . 90. 1971. A main locality of distribution for Type: Ca 10 miles east of Halls this plant is the Coral Pink Dunes region Crossing, San Juan Co., Utah, 30 Apr where the plants grow in the interdune 1966, Welsh 5205 (bry). valleys. use that region for rec- The of Status: Endemic, restricted and rare, reation possibly spells the doom of this and possibly threatened. plant in that section. Distribution: San Juan Co., Utah Astragalus tephrodes A. Gray var. brachy- (bry); known only from the type lo- lobus (A. Gray) Barneby, Amer. Midi. cality. 352 GREAT BASIN NATURALIST Vol. 35, No. 4

Hedysarum boreale Nutt. var. gremiale Lupinus jonesii Rydb., Bull. Torrey Bot. (Rollins) Northstrom & Welsh, Great Club 30: 256. i903. Basin Nat. 30: 125. 1970, based on H. Type: Silver Reef, Washington Co., gremiale Rollins, Rhodora 42; 230. Utah, 3 May 1894, M. E. Jones 5143 1940. (us). Type: West of Vernal, Uintah Co., Status: Endemic, rare and threat- Utah, 16 Jun 1937, Rollins 1735 (gh). ened. Status: Endemic, local and restric- Distribution: Washington Co., Utah ted, possibly threatened. (bry).

Distribution: Duchesne and Uintah Lupinus marianus Rj-^db., Bull. Torrey counties, Utah (bry). Bot. Club 34: 41. 1907. Hoffmanseggia repens (Eastw.) Cocker- Type: Along Bullion Creek above Marysvale, Piute Co., Utah, 21 Jul ell, Muhlenbergia 4: 68. 1908, based on 1905, Rydberg Carlton 7024 (ny). Caesalpinia repens Eastw., Zoe 4: 116. & 1893. Status: Endemic, restricted and Type: Court House Wash, near threatened (Ripley, T). Distribution: Piute Co., Utah where it comes into the Grand [Colo- (bry). rado] River, near Moab, Grand Co., Utah, 26 May 1892, Eastwood s.n. Oxytropis jonesii Barneby, Proc. Calif. (CAs). Acad. Sci. IV, 27: 215. 1952. Status: Endemic, edaphically re- Type: Red Canyon, Garfield Co., stricted but locally common, neither Utah, 7 Jun 1947, 7,150 feet, Ripley & threatened nor endangered, but appar- Barneby 8550 (gas). ently extirpated from the type area Status: Endemic, edaphically re- (Harrison et al. 1964). stricted and threatened. Distribution: Emery (bry), Grand, Distribution: Emery (us), Garfield and Wayne (bry) counties, Utah. (bry), Iron (bry, us) and Uintah (bry, NY, UTc) counties, Utah. Lathyrus brachycalyx Rydb. ssp. zionis Syn. (C. L. Hitchc.) Welsh, Proc. Utah Oxytropis multiceps Torr. & Gray, Fl. N. Amer. 1: 341. 1838. Acad. Sci. 52: 217. 1966, based on L. local, possibly en- zionis C. L. Hitchc, Univ. Wash. Publ. Status: Rare and dangered. Biol. 15: 36. 1952. Distribution: Daggett Co., Utah, Type: Ten miles east of the east en- and in Wyoming and Colorado (Barne- trance of Zion N.P., Kane Co., (?) by 1952).' Utah, 30 May 1949, Hitchcock 19013 (WTU). Oxytropis obnapiformis C. L. Porter, Ma- Status: Rare to locally abundant in drono 9: 133. 1947. disjunct populations, neither threatened Status: Rare and local, possibly nor endangered. threatened (Ripley, E). Distribution: Grand, Kane, San Distribution: Daggett Co., Utah; Juan, and Washington counties, Utah, also in Wyoming and Colorado (bry).

Coconino Co., Arizona (bry) ; re- and Peteria thompsonae S. Wats., Amer. Nat- portedly widespread in Arizona more uralist 7: 300. 1873. (McDougall 1973) . Type: Kanab, Kane Co., Utah, 1872, Lotus longebracteatus Rydb., Bull. Tor- Thompson s.n. (gh). pop- rey Bot. Club 30: 254. 1903. St.\tus: Restricted in disjunct ulations, neither threatened nor endan- Type: Southern Utah, possibly Wash- gered (Ripley, T). ington Co., Utah, 1877, Palmer 94 Distribution: Emery, Grand, Kane, (us). San Juan, and Washington counties, Status: Endemic (?), restricted but Utah; Mohave Co., Arizona, Nevada, locally abundant, neither threatened and Idaho (bry,- Porter 1956). nor endangered. Distribution: Kane and Washing- Psoralea aromatica Pavson, Bot. Gaz. 60: ton counties, Utah (bry,- Ottley 1944). 379. 1915. Dec. 1975 WELSH. ET AL.: ENDANGERED UTAH PLANTS 353

Status: Edaphically restricted, local Psoralea pariensis Welsh & Atwood, spec, and rare; possibly threatened. nov. P. megalanthae Wooton & Stand- Distribution: Emery and Grand ley proxime affinis sed floribus brevior- counties, Utah, and Montrose Co., ibus et venas supra valde albo-strigosas. Colorado (bry; Ockendon 1965). Plantae habentes caudices bene-evo- Psoralea castorea S. Wats., Proc. Amer. luti et radices tuberosae, 2-8 cm altae; Acad. Arts 14: 291. 1879. caules 0.5-3 (4.5) cm longi, internodiis Type: Near Beaver City, Beayer Co., 1-3 elongatis, strigosi; stipulae 4-7 (10) Utah, 1877, Palmer 96 (gh).'^ mm longae, ovatae vel obovatae, strigosae; Status: Unknown from Utah in foliola 3-5, 9-23 (25) mm longa, 7-22 contemporary collection, although a mm lata, obovata vel orbicularia, cuneata, specimen without collector or date rotundata ad truncata vel emarginata labeled P. castoria is on file at ut; either apicaliter, utrinque glandulifera; petioli extirpated from the state, or, and more 1.3-6.3 (7) cm longi, strigosi, pilis ap- likely, never from Utah. pressis vel adscendentibus; pedunculi 0.5- Distribution: Arizona and adjacent 2.2 (2.8) cm longi, pilis appressis vel ad- southern California (Kearney & Peebles scendentibus; bracteae 4-6 (8) mm longae, 1951; Munz &Keck 1959).' ovatae vel obovatae, acuminatae abrupte, pilosae rigide; pedicelli (1) 2-3.8 mm Psoralea epipsila Barneby, Leafl. W. Bot. longi, pilis adscendentibus; calyces plus 3: 193. 1943. minusve gibbosi basim, tubus 3.3-4 (4.6) Type: Ca 17 miles east of Kanab to- mm longus, dentes inaequales, infimis 5.3- ward Jepson Springs, Kane Co., Utah, 6.8 mm longis, circa duplo latioribus quam 6 Jun 1942, Ripley & Barneby 4832 lateralibus; corolla 8.8-10.5 (12) mm lon- (gas). ga, dente infimo calycis leviter longiori- Status: Mohave corridor endemic, bus; alae vexillo subaequalis, purpureo- rare and endangered (Ripley, T). maculatae ad apicem; fructus usque ad 9 Distribution: Co., Utah, and Kane mm longum et seminum usque ad 5.2 adjacent Coconino Co., Arizona (Bar- mm longum. neby 1943). Type: UTAH: Garfield Co.: Bryce Psoralea juncea Eastw., Proc. Calif. Acad. Canyon National Park, in ponderosa Sci. II, 6: 286. 1896. pine woods, as ground layer, at ca Type: Epsom Creek, San Juan Co., 8,000 feet elevation, 26 Jun 1975, Utah, 13 Jul 1895, Eastwood 21 (gas). Welsh & Murdoch 12859. Holotype, Status: Navajo Basin endemic, bry, Isotypes to be distributed. edaphically restricted but abundant to Additional spegimens examined: common, neither threatened nor endan- UTAH: Garfield Co.: East Creek, 3 gered. miles south of Inspiration Point, Bryce Distribution: Garfield, Kane, and Canyon N.P., in black sagebrush area, San Juan counties, Utah (bry-), and 11 Jun 1970, Buchanan 1494 (bry, Coconino Co., Arizona. wsGo); Paria View, Bryce Canyon N.P., in open ponderosa pine woods, ca Psoralea lanceolata Pursh var. steno- 8,000 feet elevation, 12 Jun 1975, S. phylla (Rydb.) Toft & Welsh, Great L. & S. L. Welsh 12810 (bry); East Basin Nat. 32: 85. 1972, based on P. Creek, 9 Jun 1931, Weight B-31/6-305 stenophylla Rydb., Bull. Torrey Bot. (bcnp, us). Kane Co.: Hackberry Can- Club 40: 46. 1913. yon in Cottonwood Wash, ca 10 miles Type: Proposed dam site near Wil- north of U.S. Highway 89, sec. 31, son Mesa, Grand Co., Utah, 1 Jul 1911, T. 40S., R. IW., 26 Apr 1972, Atwood Rydberg & Garrett 8367 (ny). 3684 (bry). Status: Endemic, locally common and threat- and neither threatened nor endangered. Status: Endemic, rare Distribution: Garfield, Grand, ened. Kane, San Juan and Wayne counties, Distribution: Kane and Garfield Utah (Toft & Welsh 1972). counties, Utah.

in leality from "Beaverdam." Mohave Co.. 'It seems likely that Palmer mislabled the type material, a I tliat it was Arizona. The species is not known from Utah. . . .

354 GREAT BASIN NATURALIST Vol. 35, No. 4

Parryella filifolia Torr. & Gray in Gray, Status: Endemic, restricted and Proc. Amer. Acad. Arts 7: 397. 1868. possibly threatened (Ripley, T). Status: Restricted and rare; threat- Distribution: Garfield, Sevier, and ened. Wayne counties, Utah (Nebeker 1974). Distribution: Grand and San Juan counties, Utah (bry); also in northern Hydrophyllaceae Arizona and New Mexico. Hydrophyllum fendleri (A. Gray) A. A. Psorothamnus thompsonae (Vail) Welsh Heller,' PI. World 1: 23. 1897, based & Atwood, comb, nov., based on Paro- on H. occidentale var. fendleri A. Gray, sela thompsonae Vail, Bull. Torrey Bot. Proc. Amer. Acad. Arts 10: 314. 1875. Club 24: 18. 1897. Status: Restricted and rare, possibly Type: Kanab, Kane Co., Utah, or pos- threatened. sibly Mohave Co., Arizona, 1872, Distribution: San Juan Co., Utah Thompson s.n." (ny). (uT. UTc); widespread from Washing- Status: Endemic (?); restricted but ton and Oregon to Wyoming, Colorado locally common and neither threatened and New Mexico, with var. fendleri nor endangered. restricted to the Rocky Mountain area Distribution: Emery, Garfield, (Constance 1942). Kane, San Juan, and Wayne counties, Nama retrorsum J. T. Howell, Leafl. W. Utah (bry and personal observations). Bot. 5: 149. 1949. Robinia neomexicana A. Gray, Mem. Status: Restricted and local, possibly Amer. Acad. Arts II, 5: 314. 1855. threatened (Ripley, T) Distribution: Garfield, Grand, and Status: Restricted and rare, possibly Kane counties, Utah (bry), and north- threatened. eastern Arizona (Atwood, in press). Distribution: Garfield (ut) and Washington counties, (bry) Utah ; Nemophila parviflora Dougl. ex Benth. widespread elsewhere. var. austinae (Eastw.) A. Brand, Pflanzenr. IV (Heft 251): 55. 1913, Gentianaceae based on A^. austinae Eastw., Bull. Tor- rey Bot. Club 28: 143. 1901. Gentianella tortuosa (M. E. Jones) Gil- Status: Restricted and local, possibly lett, Ann. Missouri Bot. Gard. 44: 248. threatened. 1957, based on Gentiana tortuosa M. Distribution: Weber Co., Utah; E. Jones, Proc. Calif. Acad. Sci. II, 5: widespread in Idaho, Nevada, Califor- 707. 1895. nia, Oregon, and Washington (Atwood, Type: Panguitch Lake, Garfield Co., in press) Utah, 7 Sep 1894, 8,400 feet, M. E. Jones 6008 (pom). Phacelia anelsonii J. F. Macbride, Contr. Status: Restricted but locally com- Gray Herb. 49: 26. 1917. mon, neither threatened nor endan- Status: Restricted and local; threat- gered. ened (Ripley, T) Distribution: Garfield, Iron, Kane, Distribution: Washington Co., Utah Sanpete counties, Utah (bry), and (bry) ; southern Nevada and adjacent Clark Co., Nevada (Gillett 1957). California (Atwood, in press).

Phacelia argillacea Atwood, Phvtologia Geraniaceae 26: 437. 1973. Geranium marginale Rydb. ex Hanks & Type: Clear Creek, in Spanish Fork Small, N. Amer. Fl. 25: 16. 1907. Canyon along the railroad on the east Type: Aquarius Plateau at the head side of U.S. Highway 50-6, Utah Co., of Poison Creek, Garfield Co., Utah, 4 Utah, Atwood et al. 309i (bry). Aug 1905, Rydberg & Carlton 7401 Status: Endemic, rare and endan- (ny). gered (Ripley, E).

'It is likely that sonic of llic collections sent to (iiay at Haivaid University iwho, in turn, i^avd tlicm to \\ntson) niay not liavc been collected by Mrs. Thompson, hut others with John Wesley Powell. It is known that l)otii Powell and Bishoj) collected plants and gave them to Ellen Thompson who did not collect outside of the Kanab area of Kane Co., Utah (Cron- quist ct al. 1972). Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PEANTS 355

Distribution: Utah Co., Utah (At- Phacelia indecora J. T. Howell, Amer. wood 1973, in press). Midi. Naturalist 29: 12. 1943. Type: Bluff, San Juan Co.. Utah, Phacelia cephalotes A. Gray, Proc. Amer. 24 May 1919, M. E. Jones s.n. (gas). Acad. Arts 10: 325. 1875. Status: Endemic, rare and endan- Type: Valley of the Virgin River, gered (Ripley, T). Washington Co., Utah, May 1874, Distribution: Wayne and San Juan Parry 179 (gh). counties, Utah (Atwood, in press). Status: Restricted and local, pos- Phacelia mammillarensis Atwood, Phyto- sibly threatened (Ripley, T). Distribution: Kane and Washing- logia 26: 437. 1973. Type: Ca 6 miles east of Glen Can- ton counties, Utah, and Mohave and yon City, along the road to Navajo counties, Arizona (Atwood, in Warm Creek, Kane Co., Utah, 6 1970, press). May Welsh & Atwood 9809 (bry). Phacelia constancei Atwood, Rhodora 74: Status: Endemic, edaphically restric- 451. 1972. ted and endangered (Ripley, E). Status: Edaphically restricted and Distribution: Garfield and Kane local; threatened (Ripley, T). counties, Utah (Atwood 1975, in press). Distribution: Emery, Garfield, Phacelia rafaelensis Atwood, Rhodora 74: Kane, and San Juan counties, Utah, 454. 1972. and Mohave Co., Arizona (Atwood Type: Capitol Reef N.M., Wayne 1975, in press). Co., Utah, 12 Jun 1969, Atwood & Hig- Phacelia crenulata Torr. ex Wats, in King gins 1834 (bry). var. angustifolia Atwood, Great Basin Status: Restricted and local, threat- Nat. 35: 158. 1975. ened (Ripley, T). Distribution: Emery, Washington, Status: Restricted and in disjunct counties, Utah, and Coco- populations, neither threatened nor and Wayne endangered. nino Co., Arizona (Atwood 1975, in press). Distribution: Beaver, Garfield, and Kane counties, Utah, and in Coconino Phacelia salina (A. Nels.) J. T. Howell, and Mohave counties, Arizona (At- Leafl. W. Bot. 4: 16. 1944, based on wood 1975, in press). Emmenanthe salina A. Nels., Bull. Torrey Bot. Club 24: 381. 1898, a sub- Phacelia demissa A. Gray var. heterotri- stitute name for E. foliosa M. E. Jones, cha J. T. Howell, Amer. Midi. Nat- Zoe 4: 278. 1893, not P. foliosa Phillip. uralist 29: 8. 1943. Type: Deep Creek Valley, above Type: Marysvale, Piute Co., Utah, Furber, Tooele Co., Utah, 8 Jun 1891, 4 Jun 1894, M. E. Jones 5388a (pom). M. E. Jones s.n. (pom). Status: Endemic, restricted and pos- Status: Rare and possibly extirpated sibly threatened (Ripley, T). from Utah. Distribution: Piute, Sevier, and Distribution: Tooele Co., Utah, and Wayne counties, Utah (Atwood, in adjacent Nevada and southern Wyo- press). ming (Atwood, in press).

Phacelia howelliana Atwood, Rhodora Phacelia tetramera J. T. Howell, Leafl. 74: 456. 1972. W. Bot. 4: 16. 1944, based on Emme- nanthe pusilla A. Gray, Proc. Amer. Type: Ca 0.4 miles north of Bluff Acad. Arts 11: 87. 1876, not P. pusilla along Utah Highway 163, San Juan Buckley nor Torr. Co., Utah, 13 May 1970, Atwood 2454 Status: Rare and possibly threatened. (bry) . Distribution: Weber Co., Utah Status: Endemic, restricted but lo- (Arnow 3985 [bry, ut]); also in Ne- cally abundant, neither threatened vada, California and Oregon (Howell nor endangered. Distribution: Grand and San Juan 1944). counties, Utah (bry; Atwood 1975, in Phacelia utahensis E. G. Voss, Bull. Tor- press). rey Bot. Club 64: 135. 1937. 356 GREAT BASIN NATURALIST Vol. 35, No. 4

Type: Gunnison, Sanpete Co., Utah, Type: Green River, Emery Co., Utah, 7 Jun 1910, M. E. Jones s.n. (pom). 9 May 1890, M. E. Jones s.n. (pom). Status: Endemic, edaphically re- Status: Navajo Basin endemic, stricted and threatened (Ripley, T). edaphically restricted but locally com- Distribution: Carbon (ut), Sanpete, mon to abundant and neither threat- and Sevier counties, Utah (Atwood ened nor endangered. 1975, in press). Distribution: Emery, Garfield, Grand, Kane, San Juan, and Wayne JUNCACEAE counties, Utah, and Apache and Nava- jo counties, Arizona (MacDougall Juncus bryoides F. J. Hermann, Leafl. W. 1973). Bot. 5: 117. 1948. Status: Restricted, rare and possibly Nolina microcarpa S. Wats., Proc. Amer. threatened. Acad. Arts 14: 247. 1879. Distribution: Salt Lake and Wash- Status: Apparently extirpated from ington counties, Utah, and in Califor- Utah; last seen in Zion N.P. in 1925 nia (Hermann 1948). (Cottam 1974). Distribution: Washington Co., Lamiaceae Utah, to northern Mexico, eastward to western Texas. Stachys rothrockii A. Gray, Proc. Amer. This plant has mistakenly been called Acad. Arts 12: 82.1876. Nolina parry i (Kearney & Peebles Status: Restricted, rare and possibly 1951) or A^. bigelovii (Cottam 1974). endangered. Distribution: Near Orderville, Kane Yucca brevifolia Engelm. in King, Rep. Co., Utah (bry,- Barneby 1944), north- Geol. Explor. 40th Parallel 5: 496. ern New Mexico and Arizona. 1871. Status: Restricted but locally abun- LiLIACEAE dant; possibly threatened by commer- cial exploitation. Agave utahensis Engelm. in King, Rep. Distribution: Southwestern Wash- Geol. Explor. 40th Parallel 5: 497. ington Co., Utah; western Arizona, 1871. southern Nevada and adjacent Califor- Type: About St. George, Washing- nia (McKelvey 1938; Weber 1953). ton Co., Utah, Palmer s.n. (mo). Status: Restricted and rare except Yucca toftiae Welsh, Great Basin Nat. locally; commercially exploited and 34: 308. 1974. possibly endangered. Our plant is var. Type: Three Garden, ca 1 mile north utahensis. of the confluence of San Juan and Colo- Distribution: Washington Co., Utah rado rivers. Lake Powell, San Juan Co., Utah, 4 Jun 1973, Welsh 11955a (bry) ; also in Coconino and Mohave

counties, Arizona (Breitung 1960). (bry) . Status: Endemic, local and uncom- Allium passeyi Holmgren & Holmgren, mon; possibly threatened. Brittonia 26: 309. 1974. Distribution: Kane and San Juan Type: Southwest part of Howell counties, Utah (bry); much of the Valley, sec. 7, T.llN., R.5W., Box known range of this entity has been Elder Co., Utah, 13 Jun 1960, 4,800 inundated by the water of Lake Powell. feet, Holmgren et al. 15125 (ny). Zigadenus vaginatus (Rvdh.") J. F. Mac- Status: Endemic, rare and endan- bride, Contr. Gray Herb. 53: 4. 1918, gered (Ripley, E). based on Anticlea vaginata Rvdb., Bull. Distribution: Box Elder Co., Utah; Torrey Bot. Club 39: 108. 1912. known only from the type locality Type: Armstrong Canyon, near the (Holmgren & Holmgren 1974). Natural Bridges, San Juan Co., Utah, Eremocrinum albomarginatum (M. E. 4-6 Aug 1911. Rydberg & Garrett 9407 Jones) M. E. Jones, Zoe 4: 53. 1893, (ny). based on Hesperanthes albomarginata Status: Endemic, restricted and pos- M. E. Jones, Zoe 2: 251. 1891. sibly endangered. Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 357

Distribution: Grand, Kane, and San Loranthaceae Juan counties, Utah (bry). Phorandendron californicum Nutt., J. This distinctive species was placed Acad. Nat. Sci. Philadelphia II, 1: 185. in synonymy under the Mexican species, 1848. Zigadenus volcanicus Benth., PI. Hart- Status: Restricted but locally abun- wegianus 96. 1840, by I'idestrom (1925), dant; neither threatened nor endan- Tidestrom and Kittell (1941), and fol- gered. lowed by Holmgren and Reveal (1967). Distribution: Washington Co., This plant is related to Z. elegans Pursh, Utah; widespread in Arizona, Nevada, but differs in having an elongated panicu- southern California, and northern Mex- late inflorescence and smaller white to ico (Kearney & Peebles 1951). greenish flowers borne in the late summer and early fall. Malvaceae Sphaeralcea caespitosa M. E. Jones, Contr. LOASACEAE W. Bot. 12: 4. 1908. Mentzelia argillosa J. Darlington, Ann. Type: Wah Wah, Beaver Co., Utah, Missouri Bot. Gard. 21: 153. 1934. 1906, 6,000 feet, M. E. Jones s.n. (pom) . Type: Vermillion, Sevier Co., Utah, Status: Endemic, rare and threat- 16 Jul 1894, 5,600 feet, M. E. Jones ened. 563^ (mo). Distribution: Beaver and Millard Status: Endemic, edaphically re- counties, Utah (bry; Jefferies 1972). stricted and threatened. Distribution: Sevier Co., Utah Martyniaceae (bry). Proboscidea louisiana (Miller) ThelL, Mentzelia obscura Thompson & Roberts, Mem. Soc. Sci. Nat. Cherbourg 3: 480. Phytologia 284. 1971. 21: 1912, based on Martynia louisiana Mil- Status: Local and infrequent. ler, Gard. Diet, ed 8, Martynia No. 3. Washington Co., Distribution: 1768. southern western Utah; Nevada and Status: Restricted and uncommon, to California and Arizona westward but neither rare nor endangered. Baja California, Mexico. Distribution: Washington Co., Utah widespread in the southwestern Petalonyx parryi A. Gray, Proc. Amer. (bry); Acad. Arts 10: 72. 1874. states and elsewhere.

Type: St. George, Washington Co., Utah, "within a stone's throw of the Najadaceae great Temple" (see Parry Mormon Najas caespitosus (Maguire) Reveal, stat. 1874, Parry 75 (gh). 1875), & comb, nov., based on Najas flexilis Status: Rare and possibly endan- ssp. caespitosus Maguire in Maguire & gered. Jensen, Rhodora 44: 7. 1942. Distribution: Washington Co., Utah Type: Common in shallow water. (bry), northern Arizona and southern Pelican Point, Fish Lake, Sevier Co., Nevada (Davis & Thompson 1967). Utah, 3 Aug 1940, 8,600 feet, Maguire 19888 (ny). LOGANIACEAE Status: Endemic and endangered. Buddieja utahensis Coville, Proc. Biol. Distribution: Sevier Co., Utah; Soc. Wash. 7: 69. 1892. known onl}' from the type area (Ma- Type: Near St. George, Washington guire & Jensen 1942). Co., Utah, 1877, Palmer s.n. (us). Najas guadalupensis Morong, Mem. Tor- Status: Restricted, rare and possibly rey Bot. Club 3: 60. 1893. threatened. Distribution: Washington Co., Status: Rare and restricted. Utah; also in northwestern Arizona, Distribution: Cache Co., Utah southern Nevada and southeastern Cali- (uTC; Maguire & Jensen 1942); wide- fornia (Munz 1974). spread elsewhere. 358 GREAT BASIN NATURALIST Vol. 35, No. 4

Nyctaginaceae ington Co., Utah, 15 Oct 1941, 3,500 feet, Gould Boerhaavia torreyana (S. Wats.) Stand- 1423 (pom). Status: ley, Contr. U.S. Natl. Herb. 12: 385. Restricted and rare, pos- sibly 1909, based on B. spicata var. torrey- threatened. Distribution: ana S. Wats., Proc. Amer. Acad. Arts Washington Co., Utah, 24: 70. 1889. and Coconino Co., Arizona (Ra- ven 1969). Status: Local, rare and highly re- stricted; possibly threatened. Oenothera megalantha (Munz) Raven, Distribution: Kane Co., Utah {At- Univ. Calif. Publ. Bot. 34: 111. 1962,. wood 3389 [bry, wts]). based on O. heterochroma var. mega- lantha Munz, Leafl. W. Bot. 3: 52. Hermidium alipes S. Wats. var. pallidum 1941. C. L. Porter, Rhodora 54: 158. 1952. Status: Restricted and rare, endan- Type: Ca 5 miles south of Vernal, gered (Ripley, E). Uintah Co., Utah, 3 Jun 1950, 5,200 Distribution: Kane Co., Utah (bry), feet, Porter 5308 (rm). and Nye Co., Utah (Raven 1969; Beat- Status: Endemic, rare and endan- ley 1973). gered. Distribution: Uintah Co., Utah Oenothera parryi S. Wats., Amer. Nat- (Porter 1952). uralist 9: 270. 1875. Type: Near St. George, Washington Oleaceae Co., Utah, 1874, Parry 72 (gh). Status: Restricted but locallv abun- scabra A. J. Menodora Gray, Amer. Sci. dant (Ripley, T). Arts II, 14: 44. 1852. Distribution: Washington Co., Status: Rare, in disjunct populations, Utah, and adjacent Arizona (bry). and possibly threatened. Distribution: Garfield and Wash- Ophioglossaceae

ington counties, Utah (bry) ; wide- spread in the southwestern states and Botrichium boreale (Fries) Milde var. northern Mexico (Kearney & Peebles obtusilobum (Rupr.) M. Braun, Index 1951). N. Amer. Ferns 33. 1938. Based on B. crassinervum var. obtusilobum Rupr., Onagraceae Beitr. Pflanzenk. Russ. Reiches 11: 42. Epilobium nevadense Munz, Bull. Torrey 1959. Bot. Club 56: 166. 1929. Status: Rare; possibly threatened. Distribution: Summit Co., Utah Status: Rare and threatened (Rip- according to Flowers 1944; not reported ley, T). from Utah by Cronquist et al. 1972); Distribution: Washington Co., widespread in northwestern America. Utah (Higgins 1972b), and Clark Co., Nevada. Botrychium lanceolatum (S. G. Gmelin) Angstrom, Bot. Not. 1854: 68. 1854, Oenothera brevipes A. Gray var. pallidula based on Osmunda lanceolata S. G. Munz, Amer. J. Bot. 15: 229. 1928. Gmelin, Novi Comment. Acad. Petrop. Status: Restricted and local, possibly 12: 516-1768. threatened. St.\tus: Rare; possibly threatened. Distribution: Washington Co., Utah Distribution: Juab Co., Utah (bry) also in northwestern Arizona, ; (Flowers 1944; Maguire & Holmgren southern Nevada and southern Califor- 1946); widely distributed in northern nia (Raven 1969). North America (Welsh 1974b). Oenothera gouldii (Raven) Welsh & At- Botrichium matricariifolium A. Braun in wood, comb, nov., based on Camissonia Koch var. hesperium (Maxon & Clau- gouldii Raven, Contr. U.S. Natl. Herb. sen) M. Braun, Index N. Amer. Ferns 37: 368. 1969. 39. 1938, based on B. matricariifolium Type: Steep slope of volcanic cone ssp. herperium Maxon & Clausen, among loose cinders, Diamond Valley, Mem. Torrey Bot. Club 19: 38. 1938. 12 miles north of St. George, Wash- Status: Rare; possibly threatened. .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PL.'\NTS 359

Distribution: Salt Lake Co., Utah Status: Restricted but hardly rare; (Flowers 1944; not reported by Cron- possibly threatened. quist et al. 1972 as, in their opinion, Distribution: Beaver (personal ob- Flowers' identification was in error); servations). Carbon, Duchesne, Gar- also in Colorado. field, Iron (personal observations), Kane, Millard, and Washington coun- Orchidaceae ties, Utah; also in Nevada and eastern California (Bailey 1970). Cypripcdiurn calceolus L. xar. parviflo- rum (Salisb.) Fern., Rhodora 48: 4. Poaceae 1946, based on C. parviflorum Salisb., Trans. Linn. Soc. London 1: 77. 1791. Andropogon glomeratus (Walter) Britton, Status: Extirpated or endangered. Sterns & Poggenb., Prelim. Cat. Antho. Distribution: Cache (utc) and & Pterid. within 100 mi. New York City Utah (bry) counties, LTtah; widespread 67. 1888, based on Cinna glomerata in northern North America. Walter, Fl. Carol. 59. 1788. Status: Rare and possibly extirpated Cypridedium fasciculatum Kellogg ex from Utah, previously known only Wats., Proc. Amer. Acad. Arts 17: 380. along Lake Powell. 1882. Distribution: Kane and San Juan Status: Rare and endangered. counties, Utah (bry); widely distrib- Distribution: Salt Lake (bry) and uted in southern and southeastern Summit (Tidestrom 1925) counties, United States, West Indies, Yucatan Utah; widespread and rare in Wash- and Central America. ington, California, Idaho, Montana, Wyoming, and Colorado. Blepharidachne kingii (S. Wats.) Hackel in DC, Monogr. Phanerog. 6: 261. Spiranthes cernua (L.) Rich., Mem. Mus. 1889, based on Eremochloe kingii S. Hist. Nta. 4: 59. 1818, based on Ophrys Wats, in King, Rep. Geol. Explor. 40th cernua I.., Sp. PI. 946. 1753. Parallel 5: 382. 1871. Status: Extirpated from Utah. Status: Rare and local. Distribution: Salt Lake Co., Utah Distribution: Beaver, Millard, and (M. E. Jones 1908 [pom]); widespread Tooele counties, Utah, and adjacent in the eastern United States (Correll Nevada (bry). 1950). Festuca dasyclada Hackel ex. Beal, Papaveraceae Grasses N. Amer. 2: 602. 1896. Papaver radicatum Rottb., Skr. Ki0ben- Type: Joe's Valley, Emery Co., havnske Selsk. Laerd. Elsk. 10: 455. LTtah, 1875, Parry s.n. (us). 1770. Status: Endemic and possibly en- Status: Rare and restricted. dangered (Ripley, PoEx). Distribution: Duchesne Co,, Utah Distribution: Emery and Sanpete

(bry) ; \\ddespread in northern North counties, Utah (N. H. Holmgren, per- America, circumboreal (Welsh 1974b). sonal communication), and Colorado (N. West, personal communication).^" Arcotmecon humilis Coville, Proc. Biol. Soc. Wash. 7: 67. 1892. Festuca sororia Piper, Contr. U.S. Natl. Type: St. George, Washington Co., Herb. 16: 197. 1913. Utah, 1874, Parry s.n. (gh). Status: Rare and restricted. Status: Restricted and rare, endan- Distribution: Southeastern Utah gered (Ripley, E) (Hitchcock & Chase 1950). Distribution: Washington Co., Helictotrichon mortonianum (Lams.- Utah, and Mohave Co., Arizona (bry). Scribn.) Henrard, Blumea 3: 429. 1940, based on Avena mortonianum PiNACEAE Lams.-Scribn., Bot. Gaz. 21: 133. 1896. Pinus longaeva D. K. Bailey, Ann. Mis- Status: Rare and endangered. souri Rot. Card. 57: 243. 1970. Distribution: Utah (Hitchcock &

^"Until 1975 this species was known only from the type. 360 GREAT BASIN NATURALIST Vol. 35, No. 4

Chase 1950) ; also in Colorado and New Sporobolus pulvinatus Swallen, J. Wash. Mexico. Acad. Sci. 31: 351. 1941. Status: Rare and possibly threat- Imperata brevifolia Vasey, Bull. Torrey ened. Bot. Club 13: 26. 1886. Distribution: San Juan Co., Utah Status: Rare, restricted and endan- (bry); New Mexico, Arizona, Texas gered or possibly extirpated from Utah. and northern Mexico (Hitchcock & Distribution: San Juan Co., Utah Chase 1950).

(bry) ; California, Nevada, and Mexico (Hitchcock & Chase 1950). POLEMONIACEAE The known localities in Utah where this grass occurred have been inundated Gilia caespitosa A. Gray, Proc. Amer. by Lake Powell. Acad. Arts 12: 80. 1876. Type: Rabbit Valley on barren cliffs Muhlenbergia arsenei Hitchc, Proc. Biol. of sandstone, Wayrte Co., Utah, 1875, Soc. 41: 161. 1928. Wash. 7,000 feet, Ward s.n. (gh). Status: Rare and local. Status: Endemic, rare and endan- Distribution: Garfield (bry), Kane gered (Ripley, E). (bry), San Juan (ut), and Washing- Distribution: Wayne Co., Utah ton (utc) counties, Utah; New Mexico (bry, utc). and Cahfomia (Cottam et al. 1940). Gilia ladfolia S. Wats, ex Parry, Amer. Muhlenbergia curtifolia Lams.-Scribn., Naturalist 9: 347. 1875. Bull. Torrey Bot. Club 38: 328. 1911. Type: Valley of the Virgin, near St. Type: Between Kanab and Carmel, George, Washington Co., Utah, 1874, Kane Co., Utah, M. E. Jones 6047 (us). Parry 188 (gh). Status: Rare and local; possibly Status: Restricted and local, pos- threatened. sibly threatened. Distribution: Kane, Wayne, and Distribution: Garfield, Kane, San Washington counties, Utah (bry) ; Ari- Juan, and Washington (ut) counties, zona, southern Nevada and southern Utah (bry, utc) ; southern Nevada California (Matthews 1971). and northern Arizona (Hitchcock & Chase 1950). Gilia mcvickerae M. E. Jones, Proc. Calif. Acad. Sci. II, 5: 712. 1895. i(Steudel) Muhlenbergia minutissima Type: Marysvale, Piute Co., Utah, Swallen, Contr. U.S. Natl. Herb. 29: 7,000 feet, M. E. Jones 5378 (pom). 207. 1947, based on Agrostis minutis- Status: Endemic, rare and local; sima Steudel, Syn. PI. Glum. 1: 171. threatened (Ripley, T). 1854. Distribution: Piute, Sevier, and Local rare. Status: and Uintah counties, Utah (bry). Distribution: Washington Co., Utah (Atwood & Higgins 5528 [bry]). Gilia stenothyrsa A. Gray, Proc. Amer. Acad. Arts 8: 276. 1870. Muhlenbergia wrightii Vasey in Coult., Type: In a clear forest, Uinta Mts., Bot. Mt. Region 409. Manual Rocky Duchesne or Uintah counties, Utah, 1885. 1844, Fremont s.n. (gh). Status: Rare and local. Status: Endemic, locally common Distribution: (Hitchcock Utah & and neither threatened nor endangered. Arizona, Colorado, Okla- Chase 1950); Distribution: Carbon (ut), Emery, homa, Mexico, and northern New Duchesne and Uintah counties, Utah Mexico. (bry, utc).

Puccinellia simplex Lams.-Scribn., Phlox cluteana A. Nels., Amer. J. Bot. 28: U.S.D.A. Div. Agrostol. Circ. 16: 1. 24. 1922. 1899. St.a>tus: Rare and local; possibly Status: Rare and possibly threatened. threatened (Ripley, T). Distribution: Weber Co., Utah Distribution: San .Juan Co., Utah {Arnow 3986 [bry]); also in Califor- (bryj, and northern Arizona (Kearney nia (Hitchcock & Chase 1950). & Peebles 1951). . .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 361

Phlox gladiformis (M. E. Jones) E. Nels., Distribution: Garfield Co., Utah Rev. West. N. Amer. Phloxes 21. 1899, (BRY, UT, UTC). based on P. longifolia var. gladiformis Eriogonum hatemanii M. E. Jones, Contr. M. E. Jones, Proc. Calif. Acad. Sci. II, Bot. 11: 11. 1903. 5: 711. 1895. W. Type: Price, Carbon Co., Utah, 29 Type: Cedar City, Iron Co., Utah, Jun 1898, M. E. Jones s.n. {pom). 11 May 1894, 6,500 feet, M. E. Jones Status: Restricted and local, neither 5208c (pom). threatened nor endangered. Status: Rare and local; possibly Distribution: Carbon, Duchesne, threatened (Ripley, T). Emery, Garfield, and Uintah counties, Distribution: Garfield, Iron, and Utah, and Rio Blanco Co., Colorado Washington counties, Utah (bry), and (Reveal 1973a). adjacent Nevada. Eriogonum brevicaule Nutt. var. cottamii Phlox grahomii WherrA', Brittonia 5: 63. (S. Stokes) Reveal, Great Basin Nat. 1943. 32: 113. 1972, based on E. tenellum Type: Talus slopes on west side of ssp. cottamii S. Stokes, Gen. Eriog. 70. Green River, south of the mouth of 1936. Sand Wash. Uintah Co., Utah, 27 May Type: Canyons in bottoms of the 1933, Graham 7884 (cm). slopes of West Mtn., Utah Co., Utah, Status: Endemic, rare and local; 20 Aug 1925, Cottam 411 (bry). threatened (Ripley, T). Status: Endemic, restricted and rare. Distribution: Uintah Co., Utah; Distribution: Juab, Millard, and known only from the type locality. Utah counties, Utah (bry. ny, utc). Phlox jonesii Wherry, Notul., Nat. Acad. Eriogonum brevicaule Nutt. var. wa- Nat. Sci. Philadelphia 146: 8. 1944. satchense (M. E. Jones) Reveal, Great Type: Zion Canyon, Washington Basin Nat. 32: 113. 1972, based on E. Co., Utah, 7 May 1923, M. E. Jones wasatchense M. E. Jones, Contr. W. s.n. (us). Bot. 11: 11. 1903. Status: Endemic, rare and threat- Type: American Fork Canyon, Utah ened (Ripley, T) Co., Utah, 27 Jul 1880, M. E. Jones Distribution: Washington Co., 1877 (pom). Utah; known only from the type lo- Status: Endemic, restricted and cality (Wherry 1955). rare. Distribution: Davis, Juab, Millard, Polygonaceae Salt Lake, Utah, and Weber counties, Eriogonum ammophilum Reveal, Phyto- Utah (bry, ds, gh, ut, utc). logia 23: 163. 1972. Eriogonum clavellatum Small, Bull. Tor- Type: Ca 1.3 miles northwest of rey Bot. Club 25: 48. 1898. Ibex Warm Point, on a dry sandy flat, Type: Barton Range, San Juan Co., 1970," Millard Co., Utah, 4 Aug 5,270 Utah, 13 Jul 1895, Eastwood 132 (ny). feet, Holmgren & Holmgren 4650 (us). Status: Rare and highly restricted; Status: Endemic, rare and local; threatened (Ripley, T). endangered (Ripley, E). Distribution: San Juan Co., Utah Distribution: Millard Co., Utah (bry, utc), and Montezuma Co., Colo- (bry, DERM, UTC). rado (cs). Eriogonum aretioides Barneby, Leafl. W. Eriogonum contortum Small ex Rydb., Bot. 5: 154. 1949. Agric. Exp. Sta. Agric. Coll. Colorado Type: Bare limestone gravel benches Bull. (Fl. Colorado) 100: 107. 1906. in the foothills of the Escalante Range Status: Infrequent but neither at Widtsoe, Garfield Co., Utah, 8 Jun threatened nor endangered. 1947, 7,750 feet, Ripley & Barneby Distribution: Grand Valley en- 8570 (c.-^s). demic in Grand Co., Utah (bry, utc), Status: Endemic, edaphically re- and Garfield and Mesa counties, Colo- stricted and endangered (Ripley, E) rado. 362 GREAT BASIN NATURALIST Vol. 35, No. 4

Eriogonum corymbosum Benth. in DC. Status: Endemic, restricted and var. davidsei Reveal, Great Basin Nat. local; endangered (Ripley, E). 27: 216. 1968. Distribution: Garfield Co., Utah; Type: Ca 0.7 miles south of U.S. known only from the type locality Highway 50-6 at Wellington, just south (bry, NY, utc). of the Price River bridge, 9 Sep 1967, Reveal & Davidse 956 (utc). Eriogonum desertorum (Maguire) R. J. Davis, Fl. Idaho 246. based Status: Endemic, restricted and lo- 1952, on E. chrysocephalum ssp. cal; endangered (Ripley, E). desertorum Ma- guire, Leafl. Bot. Distribution: Carbon Co., Utah; W. 3: 11. 1941. Status: Restricted known only from type locality. and rare; possibly threatened. Eriogonum corymbosum Benth. in DC. Distribution: Box Elder and Tooele var. divaricatum Torr. & Gray in Beck- counties, Utah; northeastern Nevada with, Explor. & Surv. Railroad Route and southern Idaho (Reveal 1973a). from Mississippi River to Pacific Ocean Eriogonum ephedroides 2: 29. 1857. Reveal, Madroiio 19: 295. 1969. Type: Near Green River, Emery Co.. Type: Ca 10 miles south of Bonanza Utah, 1 Oct 1853, Creutzfeldt s.n. (ny). along 45 of the Status: Endemic, local and restric- Utah Highway south ted; neither endangered nor threatened. White River, 25 Jul 1965, Holmgren Distribution: Emery, Garfield, and et al. 2265 (utc). Grand counties, Utah. Status: Uinta Basin endemic, re- stricted and rare; endangered (Ripley, This form of Eriogonum corymbosum E). differs from var. corymbosum in having Distribution: Uintah Co., Utah small, usually crenulate leaves, smaller (bry, utc), and Rio Blanco Co., Colo- more compact stature, and compact inflo- rado (ny). rescences. Eriogonum eremicum Reveal, Ph-s^tologia Eriogonum corymbosum Benth. in DC. 23: 165. 1972. var. revealianum (Welsh) Reveal, stat. Type: Ca 17 miles southeast of Gar- nov., & comb, based on E. revealianum rison along Utah Highway 21, Millard Welsh, Great Basin Nat. 30: 17. 1970. Co., Utah, 23 Jul 1965, Holmgren et Type: Gravelly, boulder-strewn, east- al. 2247 (utc). facing slope near the head of the can- Status: Endemic, restricted and yon at milepost 26 south of Antimony rare; threatened (Ripley, T). along Utah Highway 22, Garfield Co., Distribution: Millard Co., Utah Utah, 4 Sep 1969, S. L. & S. L. Welsh (bry, utc). 9389 (bry). Eriogonum fasciculatum Benth. var. poli- Status: Endemic, rare and local; en- folium (Benth. in DC.) Torr. & Gray, dangered. Proc. Amer. Acad. Arts 8: 169. 1870, Distribution: Garfield Co., Utah; based on E. polifolium Benth. in DC, known only from the type locality. iProdr. 14: 12. 1856. This form of Eriogonum corymbosum Status: Local and common to abun- differs from var. corymbosum in having dant, neither threatened nor endan- elongated, entire leaves concentrated gered. near the base of elongated flowering Distribution: Emery (bry, ut,- stems and open, spreading inflores- where rare) and Washington (where common) counties, Utah; widespread and common in Arizona, Nevada, Cali- Eriogonum cronquistii Reveal, Madrono fornia, and Baja California, Mexico. 19: 289. 1969. Type: Loose decomposed granite talus Eriogonum grayi Reveal, Phvtologia 25: slopes on the west side of Bull Mtn., 193. 1973. Henry Mts., Garfield Co., Utah. 14 Aug Type: Lake Blanche, Salt Lake Co., 1967, 8,300 feet, Holmgren & Reveal Utah, 15 Aug 1947. Holmgren et al. 3010 (utc). 7121 (uTC). . .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 363

Status: Endemic, disjunct and infre- Status: Endemic, restricted and lo- quent. cal; threatened (Ripley, E). Distribution: Juab, Salt Lake, Utah, Distribution: Carbon Co., Utah and Weber counties, Utah (bry, wsco. (bry, us, utc). UTC; Reveal 1973a). Eriogonum leptocladon Torr. & Gray in Eriogonum humivagans Reveal, Madrono Beckwith, Explor. & Surv. Railroad 19: 219. 1969. Route from Mississippi River to Pacific Type: Ca 13.5 miles east of Monti- Ocean 2: 129. 1857. cello, 13 Aug 1966, 6,800 feet, Holm- Type: Near the Green River, Emery gren & Reveal 3001 (utc). Co., Utah, 1 Oct 1853, Creutzfeldt s.n. Status: Endemic, restricted and rare; (ny). endangered (Ripley, E). Status: Endemic, edaphically re- Distribution: San Juan Co., Utah; stricted but locally abundant and known on!}' from the type locality. neither threatened nor endangered. Our

plant is vai . leptocladon. Eriogonum hylophilum Reveal & Brother- Distribution: Emery, Garfield, son, Great Basin Nat. 27: 190. 1968. Grand, San Juan, and Wayne counties, Type: Along Utah Highway 53 in Utah (bry. UTC; Reveal 1966). Gate Canyon, 2.7 miles southwest of the summit of the Badlands Cliffs, Du- Eriogonum leptophyllum (Torr. & Gray) chesne Co., Utah, 15 Aug 1966, 6,500 Wooton & Standley, Contr. U.S. Natl. feet, Holmgren & Reveal 3017 (utc). Herb. 16: 118. 1913, based on E. ef- Status: Endemic, rare and restricted; fusum var. leptophyllum Torr. in Sitgr., endangered (Ripley, E) Rep. Exped. Down Zuni & Colorado Distribution: Duchesne Co., Utah rivers 168. 1853. (Reveal 1968a; 1973a). Status: Local and rare; threatened. Distribution: San Juan Co., Utah Eriogonum intermontanum Reveal, Ma- {Harrison 12163 [bry] ) ; southwestern drono 19: 293. 1969. Colorado, northeastern Arizona and ad- Type: Ca 1.5 miles south of the Uin- jacent New Mexico (Reveal 1968a). tah Co. line at the head of Middle Canyon of West Water Creek drain- Eriogonum loganum A. Nels., Bot. Gaz. age in Roan Cliffs, Grand Co., Utah, 54: 149. 1912. 27 Jul 1965, 8,400 feet, Holmgren et Type: Logan, Cache Co., Utah, 26 al. 2278 (uTc). Jun 1909, Smith 1704 (rm). Status: Endemic, rare and local; en- Status: Endemic, extremel}^ restric- dangered (Ripley, E). ted and rare; endangered (Ripley, E). Distribution: Grand Co., Utah Distribution: Cache Co., Utah (bry, utc). (bry. utc).

Eriogonum jamesii Benth. in DC. var. Eriogonum nanum Reveal, Phytologia 25: rupicola Reveal, Phytologia 25: 202. 194. 1973. 1973. Type: Talus slopes and limestone Type: Along Utah Highway 15, 4.9 outcrops south of Willard Peak, Box miles west of the east entrance to the Elder Co., Utah, 31 Aug 1964, 9,500 park on Checkerboard Mesa, Zion N.P., feet. Reveal & Holmgren 665 (us). Washington Co., Utah. 12 Aug 1972, St.\tus: Endemic, restricted and rare; Reveal & Reveal 2874 (us). threatened (Ripley, T). Status: Endemic, restricted and rare; Distribution: Box Elder and Weber threatened (Ripley, T) counties, Utah (bry, utc, wsco). Distribution: Kane and Washing- ton counties, Utah (Reveal 1973a). Eriogonum natum Reveal, spec. nov. A Eriogono hrevicaule Nutt. differt Eriogonum lancifolium Reveal & Brother- foliis ellipticis, 2-2.5 (3) cm longis et (8) son, Great Basin Nat. 27: 188. 1968. 10-13 (15) mm latis, lanatis, inflores- Type: On low hills 5 miles east of centiis cymoso-umbellatis, floribus flavis, Wellington, Carbon Co., Utah, 9 Sep 2-2.5 (3) mm longis, glabris. 1967, Reveal & Davidse 957 (utc). Spreading herbaceous perennials 1-3.5 3

364 GREAT BASIN NATURALIST Vol. 35, No. 4 dm high, 1-4 dm across, with a short 1975, Reveal & Reveal 4000 (ariz, asu, woody caudex arising from a stoutish, BRY, CAS, GH, ISC, MARY, MO, NY, OKL, OSC, woody taproot; leaves essentially basal, RM, RSA, SMU, TEX, US, UTC, WTu) . the leaf-blade elliptic, 2-2.5 (3) cm long, Eriogonum natum belongs to the large (8) 10-13 (15) mm wide, densely to- species group t}pified by E. brevicaule mentose below, somewhat less so and and is seemingly most closely related to greenish-tomentose above, the petiole (1) E. brevicaule var. cottamii (S. Stokes) Re- 2-3 cm long, tomentose; flowering stems veal, a narrowly restricted variant of the erect to spreading, slender, 1-2 (2.5) dm pinyon-juniper woodlands of north central long, white to greenish-tomentose; inflo- Utah. The new species differs from var. rescences cymose-umbellate. 3-10 (15) cm cottamii in having longer and broader el- long, 3-5 (8) cm wide, trichotomously liptical leaves, a longer but less branched branched throughout, tomentose; bracts inflorescence, and smaller flowers. The scalelike to foliaceous, ternate, the former new species is restricted to the white alka- 1-3 mm long, tomentose to floccose with- line beaches of Sevier Lake and is cur- out, tomentose within, the latter 1-3 per rently known for the two locations cited node, linear-lanceolate to lanceolate, 5-10 above. (12) mm long, (1.5) 2-4 (5) mm wide, Eriogonum natum is named to honor tomentose; peduncles lacking; involucres its discoverer, Mark L. Reveal solitary or infrequently in groups of 2, (1961- ). turbinate-campanulate, 2.5-4 mm long, 2-3 Status: Endemic, rare and threat- mm wide, thinly to densely tomentose ened. without, glabrous within, the 5 acute Distribution: Millard Co., Utah. teeth 0.5-0.8 mm long, usually with a Eriogonum nummulare M. E. Jones, membranaceous margin, the bractlets Contr. W. Bot. 11. 13. 1903. linear-oblanceolate, 1.5-3 mm long, Type: Dutch Mtn., Tooele Co., Utah, fringed with gland-tipped cells, the pedi- 15 Jun 1900, M. E. Jones s.n. (pom). cels 2.5-5 mm long, glabrous; flowers Status: Endemic, rare and seeming- bright yellow with golden yellow bases ly local. and golden to greenish midribs, 2-2.5 (3) Distribution: Juab, Millard, and mm long, glabrous, the tepals oblong to Tooele counties, Utah (Reveal 1973a). obovate, distinctly keeled at the base and along the midrib of each tepal, united Eriogonum ostlundii M. E. Jones, Contr. about 14 to 1/5 the length of the flower; W. Bot. 11: 12. 1903. stamens exserted, 2.5-4 mm long, the fila- Type: Near Joseph City, Sevier Co., ments sparsely pilose basally, the anthers Utah, 13 Jun 1898, M. E. Jones s.n. yellow, 0.3-0.5 mm long, oblong to oval; (pom). achenes light brown, 2-3 mm long, the Status: Endemic, restricted and lo- globose base tapering to a long, 3-angled, cal; threatened (Ripley, T). slightly roughened beak. Distribution: Piute and Sevier Type: UTAH: Millard Co.: Along counties, Utah (Reveal 1973a). U.S. Highway 50-6, 46.2 miles east of the Eriogonum panguicense (M. E. Jones) Nevada state line and about 43 miles west Reveal, Proc. Utah Acad. Sci. 42: 291. of Delta, on low white alkaline clay out- 1966, based on E. pauciflorum var. crops 50-300 meters north of the highway, panguicense M. E. Jones. Contr. W. ca 0.2 miles east of the (hrt road junction Bot. 11: 9. 1903. to the Antelope Spring-Black Hill Well Type: Panguitch, Garfield Co., Utah, roads, north-northwest of Sevier Lake. 1 24 Jun 1890, M. E. Jones s.n. (pom). Aug 1975, Reveal & Reveal 3924. Holo- Status: Endemic, restricted and lo- type, us! Isotypes, ariz, asu, bry, cas, cal. COLO, GH, ISC, K, MARY, MO, NY, OKL, Distribution: Garfield, Iron, Kane, osc. ph. rm, rsa, smu, tex, uc, utc, wtu! Sevier, and Washington counties, Utah Additional specimens examined: (Reveal 1966; 1973a). UTAH: Millard Co.: Ca 43 miles west of Delta, 30 Aug 1975, Reveal & Reveal Eriogonum panguicense (M. E. Jones) 3999 (bry, CAS, GH, NY, OKL, RSA, US, Reveal var. alpestre (S. Stokes) Reveal,

UTc) ; ca 29.8 miles west of Delta, 30 Aug Proc. Utah Acad. Sci. 42: 292. 1966, Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 365

based on E. chrysocephalum ssp. al- Eriogonum spathulatum A. (jray, Proc. pestre S. Stokes, Gen. Eriog. 93. 1936. Amer. Acad. Arts 10: 76. 1874. Type: Cedar Breaks N.M., Iron Co., Type: Lower Valley of the Sevier Utah, 18 Jul 1930, Goodman & Hitch- River, Sevier Co., Utah, Jul 1874, cock 1601 (cAs). Parry 245 (gh). Status: Endemic, rare and local; Status: Endemic and scattered in threatened (Ripley, T). isolated populations, but neither threat- Distribution: Iron Co., Utah (bry, ened nor endangered. us, UTC). Distribution: Beaver, Iron, Millard, Piute, Sanpete, and Sevier counties, Eriogonum pharnaceoides Torr. in Sitgr. Utah (Reveal 1973a). var. cervinum Reveal, Great Basin Nat. 34: 245. 1974. Eriogonum thompsonae S. Wats., Amer. Type: Foothills south of Pinto on the Naturalist 7: 302. 1873. north slope of the Pine Valley Mts., 18 Type: Sandstone cliffs near Kanab, Aug 1973, Atwood & Higgins 5895 Kane Co.. Utah, 1872. Thompson s.n. (us)- (gh). Status: Rare, in disjunct populations. Status: Arizona stri]) endemic, re- Distribution: Millard and Washing- stricted and rare; threatened (Ripley, T). ton counties, Utah, and in Mohave Co., Arizona, and Lincoln Co., Nevada (Re- Distribution: Kane and Washington veal 1974). counties, Utah (bry, mary, utc), and Mohave Co., Arizona (bry. cas, us, Eriogonum plumatella Dur. & Hilg., J. utc). Acad. Nat. Sci. Philadelphia II, 3: 45. 1855. Eriogonum thompsonae S. Wats. var. Status: Probably extirpated from albiflorum Reveal, Madrono 19: 299. Utah. 1969. Type: 3 miles west of Virgin, Distribution: "Utah" {Palmer s.n. Ca Washington Co., Utah, 11 Aug 1966, [gh] ) ; infrequent and widely scat- tered in northwestern Arizona, south- 3,700 feet, Holmgren & Reveal 2991 ern Nevada and southeastern California. (utc). Status: Endemic, edaphically re- Eriogonum saurinum Reveal, Great Basin stricted and threatened (Ripley, T). Nat. 27: 197. 1968. Distribution: Washington Co., Type: Along the Island Park road, Utah (bry, utc). 10 miles east of Vernal along Brush Eriogonum tumulosum (Barneby) Reveal, Creek on steep hillsides on the ridges, Phytologia 23: 173. 1972, based on E. Uintah Co., Utah, 15 Aug 1966, 5,200 villiflorum A. Gray var. tumulosum feet, Holmgren & Reveal 3019 (utc). Barneby, Leafl. W. Bot. 5: 153. 1949. Status: Edaphically restricted; Type: Sandstone ledges and rock- threatened (Ripley, T). pavement on Red Plateau, southwest of Distribution: Co., Utah, Uintah and Woodside, Emery Co., Utah, 13 Jun adjacent northwestern Colorado (Re- 1947, Ripley & Barneby 8678 (cas). veal 1973a). Status: Restricted and very local Eriogonum smithii Reveal, Great Basin in disjunct populations. Nat. 24: 202. 1968. Distribution: Duchesne and Emery counties, Utah, and in Moffat Co., Type: Between Little Flat Top and Colorado (cs). Big Flat Top, San Rafael Desert, ca 10 miles southeast of Utah Highway 24, Eriogonum umbeUatum Torr. Var. deser- Emery Co., Utah, 14 Aug 1966, 5,500 eticum Reveal, var. nov. A var. umbel- feet, Holmgren & Reveal 3012 (utc). lato foliis glabris et floribus stramineis Status: Endemic, edaphically re- differt. stricted and local; threatened (Ripley, Type: UTAH: Utah Co.: Along the T). Timpooneke Road, 1 mile northwest of Distribution: Emery Co., Utah Utah Highway 80, near Timpooneke

(bry, utc) . Campground, east of Mt. Timpanogos, 366 GREAT BASIN NATURALIST Vol. 35, No. 4

associated with Quercus, Populus and Distribution: Washington Co., Artemisia at about 7,600 feet, 10 Jul Utah; widespread in Eurasia, known 1974, Reveal 3702. Holotype, us! Iso- only from three locations in the United typeS, BRY, CAS, GH. MARY, MO, NY, OKL, States (Cronquist et al. 1972). UTC! Asplenium resi Status: Endemic, locally common, liens Kunze, Linnaea 18: but neither threatened nor endangered. 331. 1844, based on A. parvulum Mar- tens Distribution: Juab, Salt Lake, San- & Galeotti, Mem. Foug. Mex. 60. pete, Tooele, Utah, and Wasatch 1842, not Hook. counties, Utah. Status: Local and rare; possibly threatened. This form of Eriogonum umbellatum Distribution: San Juan Co., Utah has been confused with var. dichro- (Flowers 1965); widespread in North cephalum Gandoger which has leaves and South America. pubescent at least on the lower surface. Asplenium septentrionale L., Sp. PL 1068. Eriogonum viridulum Reveal, Proc. Utah 1753. Acad. Sci. 42: 287. 1966. Status: Rare and obscure; possibly Type: Ca 8 miles east of Duchesne endangered. along U.S. Highway 40, Duchesne Co., Distribution: Daggett iWieholdt Utah, 2 Sep 1964, Reveal 675 (utc). 1460A [utc]) and Grand (Maguire Status: Uinta Basin endemic, re- 1935) counties, Utah; circumboreal. stricted and local; threatened (Ripley, T). Notholaena jonesii Maxon, Amer. Fern. Distribution: Duchesne and Uintah J. 7: 108. 1917. counties, Utah, and Moffat Co., Colo- Status: Restricted and rare; possibly rado (Reveal 1973a). threatened. Distribution: Washington Co., Utah Eriogonum zionis J. T. Howell, Leafl. W. (Maxon 1917); Arizona and southern Bot. 2: 253. 1940. California (Flowers 1944; Cronquist et Type: Zion N.P. along the Mt. Car- al. 1972). mel highway in the canyon of Clear Creek, Washington Co., Utah, 8 Sep Portulacaceae 1938, Eastwood & Howell 6344 (cas). Calyptridium monandrum Nutt. ex Torr. Status: Endemic, rare and local; en- & Gray, Fl. N. Amer. 1: 198. 1838. dangered (Ripley, E). Status: Rare and restricted; possibly Distribution: Kane and Washington threatened. counties, Utah (for var. zionis), with Distribution: Washington Co., Utah var. coccineum J. T. Howell restricted (bry); also Arizona and California, to northern Arizona. and Baja California, Mexico.

Polygonum utahense Brenckle & Cottam, Talinum validulum Greene, Leafl. Bot. Bull. Univ. Utah, Biol. Ser. 4 (4): 3. Observ. Crit. 2: 270. 1912. 1940. Status: Rare and obscure; possibly Type: miles north of Ca 6 Escalante, threatened. Garfield Co., Utah, 17 Sep 1935, Cottam Distribution: Emery Co., Utah 6507 (ut). (bry); Coconino Co., Arizona. Status: Endemic; species of uncer- tain taxonomic status. Primulaceae Distribution: Garfield Co., Utah

(bry, ut) ; known only from the type Primula incana M. E. Jones, Proc. Calif. locality. Acad. Sci. II, 5: 706. 1895. POLYPODIACEAE Type: Beaver Co-op Ranch, at the head of the South Fork of the East Fork Asplenium adiantum-nigrum L., Sp. PI. of the Sevier Ri^cr, Garfield Co., Utah, 1081. 1753. in cold bogs, 7,000 feet, M. E. Jones Status: Rare and local; status un- 531 2av (i'om). certain within Utah as not collected Status: Rare and possibly extir- since the 1930s (Flowers 1944). pated in the type area; threatened. .

Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 367

Distribution: Daggett and Garfield ROSACEAE counties, Utah (Cosgriff 1968); wide- (Viamacrhodos erecta (L). Bunge in spread in northwestern North America Ledcb., Fl. Altaica 1: 430. 1829, based (Welsh 1974b). on Sihbaldia erecta L., Sp. PI. 1: 284. Primula maguirei L. 0. Williams, Amer. 1753. Midi. Naturalist 17: 747. 1936. Status: Rare and local, altitudinally Type: Damp overhanging rock restricted. Distribution: Piute and ledges and cracks, 5 miles up Logan Wayne

counties, Utah (bry) ; also from Colo- Canyon, Cache Co., Utah, 19 Apr 1932, rado, Dakota Maguirc & Maguire 3650 (mo). North and Michigan, north to Yukon and Alaska; Asia Status: Endemic, rare and threat- (Welsh 1974b). ened (Riple}^ T) Distribution: Cache Co., Utah Crataegus chrysocarpa Ashe, North Caro- (UTC). lina Agric. Exp. Sta. Techn. Publ. 175: 110. 1900, based on C. rotundifolia Primula specuicola Rydb., Bull. Torrey Moench, Verz. Ausl. Baume Stand Bot. Club 40: 461. 1913. Weiss 29. 1785, not Lam. Type: Along the San Juan River near Status: Rare and threatened. Bluff, San Juan Co., Utah, 25-29 Aug Distribution: Cache Co., Utah 1911, Rydberg 9882 (ny). (Maguire 1937); widespread elsewhere. Status: Restricted habitatwise, local succulenta Link, and threatened (Ripley, T). Crataegus Schrader ex Handbuch2: 78. 1831. Distribution: Garfield (ut). Grand, Status: Local and rare; threatened. Kane, San Juan, and Wayne counties, Distribution: Utah Co., Utah Utah, and in northern Arizona (Cos- (bry, UTC; Barnes 1943); widespread griff 1968; McDougall 1973). to the east of Utah (Little 1953).

Ranunculaceae Ivesia sabulosa (M. E. Jones) Keck, Lloydia 1: 124. 1938, based on Ponten- Aquilegia micrantha Eastw., Proc. Calif. tilla sabulosa M. E. Jones, Proc. Calif. Acad. Sci. II, 4: 559. 1895. Acad. Sci. II, 5: 680. 1895. Type: Near Bluff, San Juan Co., Type: Head of the Sevier River, prob- Utah, Jul 1894, Wetherill s.n. (cas). ably in Garfield Co., Utah, 11 Sep Status: Restricted habitatwise, local 1894, 8,000 feet, M. E. Jones 6032 but not threatened nor endangered. (pom). Distribution: Emery, Garfield, Status: Rare and local, possibly Grand, Kane, and San Juan counties, threatened. Distribution: Garfield and Wash- Utah (bry) ; also in Arizona and Colo- rado. ington counties, Utah (bry), and Nye Co., Nevada (Keck 1938b). Ranunculus acriformis A. Gray var. aesti- valis L. Benson, Amer. Midi. Natural- Ivesia utahensis S. Wats., Proc. Amer. ist 40: 43. 1948. Acad. Arts 17: 371. 1882. Type: Meadow at springs just east Type: On the summit of Bald Moun- of U.S. Highway 89 and 300 yards west tain, in Wasatch Range, above Alta, of the Sevier River, 8.3 miles north of Salt Lake Co., Utah, Aug 1879, over the principal intersection in Panguitch 12,000 feet, M. E. Jones 1231 (gh). local. and about 1.5 miles south of the inter- Status: Endemic, rare and section with Utah Highway 20 leading Distribution: Salt Lake, Summit, to Parowan, Garfield Co., Utah, 29 Aug and Utah counties, Utah (Keck 1938b). 1948, 6,400 feet, Benson 13420 (pom). Rubus neomexicanus A. Gray, Smithso- Status: Endemic and presumed to be nian Contr. Knowl. 5: 55. 1853. extinct (Ripley, PoEx). Status: Local, rare and threatened. Distribution: Garfield Co., Utah Distribution: San Juan Co., Utah

(bry) ; known only from the type lo- (bry) ; New Mexico, Arizona, and cality. northern Mexico. 368 GREAT BASIN NATURALIST Vol. 35, No. 4

Most of the known range of this yon, Utah Co., Utah, 1885, Leonard species has been destroyed by Lake 151 (ny). Powell. Status: Endemic, locally common but neither threatened nor RUBIACEAE endangered. Distribution: Cache, Daggett, Davis, Galium multiflorum Kellogg var. wat- Duchesne, Salt Lake, Sanpete, Sununit,

sonii A. Gray, Syn. Fl. N. Amer. 1 : 40. Tooele, Utah, and Wasatch counties,

1884. Utah (bry, ut) . Type: Wasatch Mts., Utah, 1869, Castilleja parvula Rydb., Bull. Torrey Watson 484 (gh) . Status: Endemic, neither threatened Bot. Club 34: 40. 1907. nor endangered. Type: Mountains north of Bullion Distribution: Box Elder, Cache, Creek near Marysvale, Piute Co., Utah, Davis, Tooele, and Utah counties, Utah 1905, Rydberg & Carlton 7158 (ny). (Dempster & Ehrendorfer 1965). Status: Endemic, rare and local; threatened (Ripley, T). Galium scabruisculum. (Ehrendorfer) Distribution: Piute Co., Utah (ny, Dempster & Ehrendorfer, Brittonia 17: utc). 312. 1965, based on G. hypotrichium Castilleja ssp. scabjuisculum Ehrendorfer, Contr. revealii N. H. Holmgren, Bull. Torrey Bot. 100: Dudley Herb. 5: 13. 1956. Club 87. 1973. Type: Bryce Canyon N.P., along the Type: Calf Springs Wash, San Rafael road to Bryce Point, 0.5 mile from In- Swell, Emery Co., Utah, Maguire spiration Point turnoff, Garfield Co., 18457 (gh). Utah, 24 Jun 1965, 8,000 feet, Holm- Status: Endemic, neither threatened gren & Reveal 2017 (ny). nor endangered. Status: Endemic, rare and local; en- Distribution: Carbon and Emery dangered (Ripley, E). counties, Utah. Distribution: Garfield Co., Utah; known only from the type locality. RUTACEAE Mimulus eastwoodiae Rydb., Bull. Torrey Ptelea trifoliata L. ssp. pallida (Greene) Bot. Club 40: 483. 1913. V. L. Bailey, Brittonia 14: 23. 1962, Type: In crevices of perpendicular based on P. pallida Greene, Contr. U. S. or overhanging rocks along the San Natl. Herb. 10: 70. 1906. Juan River near Bluff, 25-29 Aug 1911, Status: Rare and possibly extirpated. Rydberg 9883 (ny). Distribution: Garfield and Kane Status: Edaphically restricted, local counties, Utah; this subspecies also in and disjunct; not threatened nor endan- Arizona and Colorado (Bailey 1962). gered. Distribution: Grand, Kane, and San SCROPHULARIACEAE Juan counties, Utah (bry), and adja- cent northern Arizona (Kearney & Castilleja aquariensis N. H. Holmgren, Peebles 1951). Bull. Torrey Bot. Club 100: 87. 1973. Type: Aquaris Plateau, 22 miles Penstemon abietinus Pennell, Contr. U.S. northwest-north of Escalante on the Natl. Herb. 20: 276. 1920. road to Bicknell, 0.5 mile north of Clay- Type: Ireland Ranch, head of Salina ton Guard Station turnoff, Garfield Co., Canyon, Sevier Co., Utah, 15 Jun 1894, Utah, 11 Aug 1970, 9,600 feet, Holm- 2,400 m, M. E. Jones 5440 (us). gren & Holmgren 4726 (ny). Status: Endemic, rare and local; Status: Endemic, rare and local; en- threatened (Ripley, T). dangered (Ripley, E). Distribution: Iron (ut), Sevier, and Distribution: Garfield Co., Utah; Utah counties, Utah (bry; Keck 1937a). only from the type area. known Penstemon acaulis L. O. Williams, Ann. Castilleja leonardii Rydb., Bull. 7V)rrey Missouri Bot. Card. 21: 345. 1934. Bot. Club 34: 36. 1907. Status: Restricted, rare and threat- Type: Head of American Fork Can- ened (Ripley, T). .

Dec. 1975 WELSH, F,T AL.: ENDANGERED UTAH PLANTS 369

Distribution: Daggett Co., Utah Penstemon garrettii Pennell, (^ontr. U.S. (ny, us, utc) and adjacent vSweetwater Natl. Herb. 20: 353. 1920. Co., Wyoming (Keck 1937a). Type: Crevices in travertine rock, "Hot Pots," near Midwav, Wasatch Co., Penstemon atwoodii Welsh, Great Basin Utah, 6 Jul 1905, Carlrton Garrett Nat. 35: 378. 1976. & 6697 (ny). Type: South end of Horse Mtn., ca St.'Vtus: Endemic, restricted and pos- 10 miles south-southeast of Canaan sibly extinct. Peak, Kane Co., Utah, 14 Jun 1975, Distribution: Duchesne (utj and S. L. & S. L. Welsh 12820 (bry). Wasatch counties, Utah. Status: Endemic, local and threat- ened. Penstemon grahamii Keck in Graham, Distribution: Garfield and Kane Ann. Carnegie Mus. 26: 331. 1937. counties, Utah (bry, ny). Type: Talus slope on the west side of Green River, south of the mouth of Penstemon bracteatus Keck, Leafl. W. Bot. Sand Wasli, Uintah Co., Utah, 27 May 1: 82. 1934. 1933, Graham 7883 (cm). Type: Red Canyon, Garfield Co., Status: Endemic, rare, restricted Utah, 20 Jun 1933, Eastwood Howell & and endangered (Ripley, E) 783 (cAs). Distribution: Uintah Co., Utah Status: Endemic, restricted and rare; (bry, utc; Keck 1938a). possibly threatened. Distribution: Garfield Co., Utah Penstemon humilis Nutt. ex Gray var. (bry). brevifolius A. Gray, Syn. Fl. N. Amer. 2: 267. 1878. Penstemon caespitosus Nutt. var. suffruti- Type: Cottonwood Canyon, Wasatch cosus A. Gray, Syn. Fl. N. Amer. 2: Mts., Salt Lake Co., Utah, 1869, 9,000- 270. 1878. 10,000 feet, Watson 781 (gh). Type: Near Beaver, Beaver Co., Utah, Status: Endemic, local and possibly 1877, Palmer s.n. (gh). threatened. Status: Endemic, restricted and lo- Distribution: Cache, Juab, Salt cal; threatened (Ripley, T). Lake, Utah, and Weber counties, Utah Distribution: Beaver, Garfield and (bry, ut). Piute counties, Utah (Keck 1937a). Penstemon humilis Nutt. ex Gray var. Penstemon compactus (Keck) Crosswhite, obtusifolius (Pennell) Reveal, stat. no v., Amer. Midi. Naturahst 77: 6. 1967, based on P. obtusifolius Pennell, Contr. based on P. cyananthus ssp. compactus U.S. Natl. Herb. 20: 370. 1920. Keck, Amer. Midi. Naturalist 23: 615. Type: Springdale, Washington Co., 1940. Utah, 16 May 1894, 1,600 meters, M. Type: Stony slopes of Mt. Naomi, E. Jones 5249am (pom). Cache Co., Utah, 18 Aug 1938, 2,900 Status: Endemic, rare and restricted; 'meters, Maguire 16148 (utc). possibly threatened. Status: Endemic, restricted and Distribution: Beaver and Washing- threatened (Ripley, T). ton counties, Utah (Keck 1945). Distribution: Cache Co., Utah (bry, UTC, w^sco). Penstemon jonesii Pennell, Contr. U.S. Natl. Herb. 20: 338. 1920. Penstemon concinnus Keck, Amer. Midi. Type: Springdale, Washington Co., Naturalist 23: 608. 1940. Utah, 17 May 1894, M. E. Jones 5250, Type: Tunnel Springs, northwest in part (us). corner of Desert Range Experiment Sta- Status: Endemic, rare and obscure; tion boundary, about 10 miles east of taxonomic status questionable. Garrison, Millard Co., Utah, 28 Jun Distribution: 'Washington Co., 1933, 1,675 meters, Cottam 5655 (ds). Utah; known only from the tj^e lo- Status: Endemic, restricted and rare; cality. endangered (Ripley, E). Distribution: Beaver and Millard Penstemon laevis Pennell, Contr. U.S. counties, Utah (bry, ny, us, utc). Natl. Herb. 20: 347. 1920. 370 GREAT BASIN NATURALIST Vol. 35, No. 4

Type: Red sand at Springdale, Wash- Millard Co., Utah, 13 May 1939, 1,675 ington Co., Utah, 17 May 1894, 1,200 meters, Plummer 7313 (ds). meters, M. E. Jones 5250^ in part (us). Status: Endemic, restricted and lo- Status: Endemic, restricted and lo- cal; threatened (Ripley, E). cal. Distribution: Beaver and Millard Distribution: Kane, Garfield, and counties, Utah (bry, utc).

Washington counties, Utah (bry, utc) . Penstemon parvus Pennell, Contr. U.S. Penstemon leiophyllus Pennell, Contr. Natl. Herb. 20: 345. 1920. U.S. Natl. Herb: 20: 346. 1920. Type: The Button, Aquarius Plateau, Type: Mammoth Creek, Garfield Wayne Co.. Utah, 11 Aug 1875, Ward Co., Utah, 10 Sep 1894, 2,400 meters, 546 (us). M. E. Jones 6026b (us). Status: Endemic, restricted and rare; Status: Endemic, restricted and lo- threatened (Ripley, T). cal; threatened (Ripley, T). Distribution: Garfield and Wayne Distribution: Garfield, Iron, Kane, counties, Utah, (bry; Pennell 1920). and Washington counties, Utah (bry). Penstemon sepalulus Rydb., Bull. Torrey Penstemon lentus Pennell var. albiflorus Bot. Club 36: 690. 1909. (Keck) Reveal, stat. nov., based on P. Type: Canyons of the Wasatch Mts., lentus ssp. albiflorus Keck, Amer. Midi. Provo Canyon, Utah Co., Utah, Jul Naturalist 23: 616. 1940. 1869, Watson 786 (ny). Type: Abajo Mts., ca 8 miles west of Status: Endemic, locally abundant. Blanding, near the "Bear's Ears," San Distribution: Utah Co., Utah (bry; Juan Co., Utah, 9 Jun 1938, 2,400 Keck 1932). meters, C. L. Porter 1801 (rm). Penstemon tidestromii Pennell, Contr. Status: Endemic, locally common U.S. Natl. Herb. 20: 379. 1920. and not threatened. Type: "XL" Canyon, San Pitch Mts., Distribution: San Juan Co., Utah Sanpete Co., Utah, 24 Jun 1908, 1,650 (bry). meters, Tidestrom 1296 (us). Penstemon leonardii Rydb., Bull. Torrev Status: Endemic, local and obscure; Bot. Club 40: 483. 1913. taxonomic status questionable. Type: Diehl's Grove, Wasatch Mts., Distribution: Sanpete Co., Utah; locality. possibly Utah Co., Utah, 1 Aug 1884, known only from the type Leonard s.n. (ny). Penstemon uintahensis Pennell, Contr. Status: Endemic, locally common U.S. Natl. Herb. 20: 350. 1920. and not threatened nor endangered. Type: Dyer Mine, Uinta Mts., Uin- Distribution: Cache, Davis, Rich, tah Co., Utah, 50 Jun 1902, Goodding Salt Lake, Summit, Uintah, Utah, Wa- 1221 (ny). satch, Washington, and Weber counties, St.'vtus: Endemic, rare and restric- Utah (bry. ut). ted; threatened (Ripley, T). Penstemon longiflorus (Pennell) S. L. Distribution: Daggett. Duchesne, Clark, Great Basin Nat. 35: 434. 1976, and Uintah counties, Utah (bry). based on P. cyananthus ssp. longiflorus Penstemon wardii A. Gra^'. Proc. Amer. Pennell, Contr. U.S. Natl. Herb. 20: Acad. Arts 12: 82. 1876. 353. 1920. Type: Near Glenwood, Sevier Co., Type: Beaver, Beaver Co., Utah, Utah, 4 Jun 1875, Ward 162 (us). Palmer 376 (ny). Status: Endemic, restricted and lo- restricted lo- Status: Endemic, but cal; threatened (Ripley, T). cally common. Distribution: Sanpete and Sevier Distribution: Beaver, Millard, and counties, Utah (bry. utc). Piute counties, Utah (bry). Synthris laciniata (A. Gray) Rydb. ssp. Penstemon nanus Keck, Amer. Midi. Nat- ibapahensis Pennell, Proc. Acad. Nat. uralist 23: 607. 1940. Sci. Philadelphia 85: -92. 1933. Type: Desert Range Experiment Sta- Type: Wot gravelly slopes near ra- tion, about 10 miles east of Garrison, vine of snow on Mount Ibapah, Juab Dec. 1975 WELSH, ET AL.: ENDANGERED UTAH PLANTS 371

Co., Utah, 5 Jul 1932, 9,500-10,000 . In press. Hydrophyllaceae of Utah. feet, Stanton 1000 (ph). Great Basin Nat. B.MLEY, D. K. 1970. Phytogeography and Status: Endemic, restricted iind ob- taxonomy of Pinus subsection Balfourianae. scure; taxonomic status questionable. Ann. Missouri Bot. Card. 57: 210-249. Distribution: Juab Co., Utah; Bailey, V. L. 1962. Revision of the genus Ptelea known only from the type locality. (Rutaceae). Brittonia 14: 1-45. Barkley, T. M. 1962. A revision of Senecio aureus Linn, and allied species. Trans. Kan- SELAGINELL.A.CEAE sas Acad. Sci. 65: 318-408. Barneby, R. C. 1943. Miscellaneous diagnoses. Selaginella utahensis Flowers, Amer. Fern Leaf]. W. Bot. 3: 193-199.

J. 39: 83. 1949. . 1944a. A note on the distribution of Type: South of St. George, Washing- some western dicotyledons. Leafl. W. Bot. ton Co., in a wash bottom, 5 Apr 1931, 4: 7-12. . 1944b. Pugillus astragalorum alter. Cottam 5644 (ut). Proc. Calif. Acad. Sci. IV. 25: 147-167.

Status: Rare and local; possibly . 1945. Pugillus astragalorum— IV: The threatened. section Diplocystium. Leafl. W. Bot. 4: 65- Distribution: Washington Co., 147. . 1946. Pugillus astragalorum —V. Leafl. Utah, and Spring Mts., Clark Co., Ne- W. Bot. 4: 228-238. (Cronquist et al. vada 1972). . 1947a. Pugillus astragalorum—VI: Notes on section Drabellae. Leafl. W. Bot. Verbenaceae 5: 1-9. . 1947b. A new monocephalous Parthen- Aloysia wrightii (A. Gray) A. A. Heller, ium. Leafl. W. Bot. 5: 19-22.

. 1947c. Pugillus astragalorum—VII: A Muhlenbergia 1: 147. 1906, based on revision of the Agrophylli. Amer. Midi. Nat- Lippa wrightii A. Gray, Amer. J. Sci. uralist 37: 421-516.

II, 16: 98. 1853. . 1948. Pugillus astragalorum—IX: Nov- Status: Local and rare; possibly en- elties in Batidophaca. Leafl. W. Bot. 5: 82- dangered. 89. — . 1949a. Pugillus astragalor-um—X: New Distribution: Washington Co., Utah species, varieties and combinations. Amer. (Higgins 615 [bry]; Higgins 1972b); Midi. Naturalist 41: 496-502.

from Texas to California and in north- — . 1949b. Eriogonum villiflorum and its ern Mexico. near relatives in the Great Basin. Leafl. W. Bot. 5: 151-154.

Violaceae — . 1952. A revision of the North American species of Oxytropis DC. Proc. Calif. Acad. Viola purpurea Kellogg var. charlestonen- Sci. IV, 27: 177-312.

. Pugillus astragalorum XV: Four sis (Baker & Clausen) Welsh & Reveal, — 1953. — new species. Leafl. W. Bot, 7: 31-38. Stat. & comb, nov., based on V . charles- . 1954. Pugillus astragalorum—XVI: tonensis Baker & Clausen in Clokey, Minor novelties from Nevada. Leafl. W. Madrono 8: 58. 1945. Bot. 7: 192-199. Status: Restricted, local and rare; . 1956a. Pugillus astragalorum—XVII: Four new species and one variety. Leafl. threatened (Ripley, T). W. Bot. 8: 14-23. Distribution: Washington Co., 1956b. Pugillus astragalorum—XVIII: Utah, and Clark Co., Nevada (Clokey Miscellaneous novelties and reappraisals. 1945; Eastmond 1969). Amer. Midi. Naturalist 55: 477-503.

. 1964. Atlas of North American Astra- galus Mem. New York Bot. Gard 13: 1-1188.

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