Great Basin Naturalist

Volume 55 Number 4 Article 4

10-31-1995

Names and types in perennial Atriplex Linnaeus (Chenopodiaceae) in North America selectively exclusive of Mexico

Stanley L. Welsh Brigham Young University

Clifford Crompton Biosystematics Research Centre, Ottawa, Ontario, Canada

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Recommended Citation Welsh, Stanley L. and Crompton, Clifford (1995) "Names and types in perennial Atriplex Linnaeus (Chenopodiaceae) in North America selectively exclusive of Mexico," Great Basin Naturalist: Vol. 55 : No. 4 , Article 4. Available at: https://scholarsarchive.byu.edu/gbn/vol55/iss4/4

This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Great Basin Naturalist 55(4), © 1995, pp. 322-334

NAMES AND TYPES IN PERENNIALATRIPLEX LINNAEUS (CHENOPODIACEAE) IN NORTH AMERICA SELECTIVELY EXCLUSIVE OF MEXICO

Stanley L. Welsh1 and Clifford Crompton2

ABSTHAGc-Cited are names and combinations within the woody species ofAtriplex as they occur in North America. Types and their repositories are included for all taxa except those for \vhich that information could not be located. I\ew nomenclatural proposals include Atriplex gardneri val'. aptera (A. Nelson) 'Velsh & Crompton, comb. nov.; A. garrettii vax. navajoensis (C. A. Hanson) 'Welsh & Crompton, comb. naY.; Attiplex acanthocarpa val'. coahuilensis (Henrickson) Welsh & Crompton, comb. noy. A lectotype is designated for A. breweri S. \Vatson.

Key words: Chenopodiaceae, Atriplex types, North America.

This list of names and synonyms of peren­ Niobrara Shale, Mancos Shale, Morrison nial and woody Amplex taxa is preliminary to Formation, and numerous other geological for­ the preparation of a taxonomic treatment for mations support these plants. Saline pans and the woody species of Atriplex as they occur in other poorly drained lowlands are occupied by North America, both indigenous and intro­ these species. Despite the affinity for saline duced species. All names, whether treated as areas, where they have little competition taxa recognized by me or as mere synonyms, (except from other halophytes), some of the are included. The taxonomic treatment that species thrive where total soluble salts are low. will appear subsequently in the publication of The four-wing saltbush, Atriplex canescens the Flora North America Project will distin­ (Pursh) Nuttall, is such a plant. It grows from guish between the names of taxa per se and the edge of saline areas up gradient into far their included synonyms. The relatively large less saline substrates, often in grasslands or in number of names and synonyms for this small shrublands dominated by sagebrush and other group of plants is indicative of the changes in shrubby species. generic concepts, the ever-changing interpre­ Hybridization is an important factor con­ tation of the status of a taxon, and the general tributing to the diversity of woody Amplex phenotypic plasticity of this amazing group of species. There are at least two main taxa shrubs, subshrubs, and perennial herbs, which around which many of the remainder are hybridize freely among themselves and some­ placed, and with which most form at least times with other taxa not apparently closely occasional hybrids, i.e., A. eaneseens (Pursh) allied. They grow on a surprising array of sub­ Nuttall and A. eonfertifolia (Torrey & Fremont) strates in the American West, from the cold S. Watson. Some of the hybrids have received temperate of northern Alberta to the much names and formal taxonomic recognition. warmer climates of Mexico. Often they are Most ofthem are ofoccasional occurrence, and among the most important shrub species on some of the taxa treated in contemporaneous saline, fine-textured substrates, and some­ taxonomic works are apparently of hybrid times they are the only shrubby iohabitants. derivation-now more or less stabilized as pop­ Their ability to survive and even thrive in ulations, mainly on very peculiar substrates. saline sites has placed them in a pnsition of The following list is thought to be exhaus­ importance for browsing animals where other tive for woody and perennial Atriplex names browse is scarce or lacking. They cover huge in North America, especially for those north of areas where geomorphological processes have Mexico. A few taxa represented in Mexico are exposed raw, saline strata in vast expanses. included where they round out the names for

J Li!" Sci",n,x Ml"",um 'll1d Department of)'.{)tany ,md R,lllge Science, Brigham Young University, Provo, UT 84602, 2l\iosystelllillics nesearch Centre, ''I'm. s,lulldcr.1 Buddin!:. C. E. F. Ottawa, Ontario KIA PC6, Canad".

322 1995] NORTH AMEnTCAN PERENNIAL ATRIPLEX TYPES 323 species complexes largely confined north of Basionym: A. pnnglei Standley that country. Pertinent types have been received The taxon is endemic to Mexico, from northern Zacatecas and southern Nuevo Leon south to San Luis on loan by the gracious kindness ofcurators of Potosi. the herbaria cited with the specimens. Abbre­ viations for the herbaria are those standard Atripwx acanthocarpa ssp. .~tewartii (I. M, Johnston) ones cited in Index HerbarioI'l1m, except that Henrickson, Southwest. Nat. 3:3: 457.1988. Basionym: A. stewartii 1. M. Johnston the origin of the collection is indicated by use TIw taxon is endemic to Coahuila, Mexico, and is dis­ of such designations as NY Torrey for historic tinguished by its 4-wingcd fruiting hradeoles, although specimens. This is thought to be important specimens arc transitional to A. acanthocarpa var. aean­ because it authenticates the antiquity of the tlwearpa. specimen and might prove important in cer­ Atriplex amnicola P. G. WIlson, Flora of Australia 4: 322. tain cases in judging whether a particular 1984. author had access to a given specimen. Type; "Yalgoo, W. A." [western Australia], 10 Oct. 1945, The type information is presented below in C. A. Gardner 7751a; holotype PERTH! dual format for some taxa, with the type locali­ Atriplex angustior Cockerell, Proc. Davenport Aead. Nat. ty or collector information 0wrcin arbitrarily Sci. 9: 7. 1902. designated "Type locality") as recorded with = A. canescens (Pursb) Nuttall the protologue cited first and with the label Type: New Mexico, Dona Ana Co., Mesilla Park, data of the type specimen (herein designated Cockerell in 1900; holotype US! "lype") cited second where there is a substan­ The US spedmen bcars the following label data: "Atriplex angustiOl; n. sp. Distinguished from A. eanescens tial difference in the two accounts. by the very narrow (3 mm broad) leaves. Apparently = A. caneseens ,mgnstifolia hut that name is preoccupied. Sand Atriplex acantlwcarpa ('lorrey) S. Watson, Proc. Amer. Hills Mesilla Park, N. M. 1900. 'IDA CockerelL" Aead. Arts 9: 117. 1874. Hall and Clements (1923) cited this as a new name for Basionym: Obione acantJwCAlrpa 1brrcy A. canescem vm: angustifolia, but it seem~ obvious that This is a shrub or subshrub, generally less than 1 m while Cockerell recognized the equivalency of the taxa, tall, characterized by spongy fruiting bracteoles 8-1.5 mm he was proposing a new taxon, not merely a new name. long, borne on slender to stout pedicel:; 4-20 mm long. Leaves are variahle, hut often sinuate-dentate to undu­ AtrilJlex aptera A. Nelson, Bot. Gaz. a4: 356. 1902. late-crisped and with hastately lobed base. Thc species = A. gardneri val'. nptern (A. Nelson) Welsh & occurs from west 'lexas and southern New Mexico south Crompton to Mexico. It is represented in the United States by two Type 10l:ality: Wyoming, Laramie, Sept. 1901, E. varieties, Le., val'. acantlwcarpa from western Texas west Nelson 738; A. Nelson (1902). through southern New Mexico to southeastern Arizona, Type: "Atriplex apwnJ A. Nels. n. sp. Moist saline soil. and var. coahuilensis in southern Texas. Laramie, Albany Co., Wyoming. Sept. 19tH. Elias Nelson No. 738"; holotype RM!; isotype CHI, UC (frag.)! Atriplex acanthocarpa ssp. coahuilensi.~ Henrickson, Hanson (1962) suggested that his taxon was of hybrid Southw. Naturalist 33: 4.58. 1988. derivation involving A. eanescens and A. blix~f()lia as = A. acanthocurpa var. coahuilensis (Henrickson) parental taxa. Disb"ibutiun of specimens assignable to the Welsh & Crompton (cited below). concept is sporadic, possibly indicating multiple origins, Type: Mexico, Coahuila, ca 2 Ion W of Nadadorcs in and it cannot be considered a taxon in the usual sense. saline pastured flats nem' El Porvinir along Hwy. 30, with The type specimen ofA. aptem has definite wings aligned Suaeda, Sporobolus, Distiehlis, nar 27°03' N lat, in fonr rows similar to some A. cnnescens hut agrees in 101 °37'W long, ,540 m, 6 Dec 1975, J. Henrickson 14784; aspect, size, and general features with A. garrlneri. holotype TEX; isotypes MEXU, NY!, RSA. This taxon is distinguished by its fruiting bradeoles Atriplex berlandieri Moquin-Tandon, Chenop. Enum. 65. bearing radiating processes, and stems witb at least the 1840. medial leaf blades hastate-laneeolate, and with mature = A. canesccm; (Pursh) Nuttall fi'uiting inflorescences very long. Its range is from south­ Type: "In regno Me-x.icano. Berlmldicr 1828"; holotype? ern Texas to southeast Coabuila and coastallamalllipas. Moquin-Tandon enlarges on the type information in his treatment in Prodromus (13[2]: 114. 1849), "In regno Atripwx acanthocartJa val". coahuilensis (Henrickson) Mexicano inter Lavcrdo et Bejar (Berland.! n. 1450)." Welsh & Crompton, comb. nov. Basionym: A. acanthocarpa ssp. coahuil.ensis Henrick­ AtriplRx bonrwviUensis C. A. Han~on, Stud. Syst. Bot. son, Southwest. Nat. 33: 458. 1988. Brigham Young Univ. 1: 2. 1962. = A. gnrdnm"i var. honnevillensis (c. A. Hanson) wc1~h Atriplex acanthocarpa val". cuueata (A. Nelson) M, E. Type: Utah, Millard Co., "dlY lake bed 1.5 miles north­ Jones, ContI'. West. Bot. 11: 20. 1903. east of headquarters, Desert Range Experiment Station = A. ganlneri val'. clineata (A. Nelson) Welsh (dominant plant)," 12 July 1961, C. A. Hanson 354; holo­ lypc BRY!; isotypes CHI, MO!, NY!, UTC! Atripl.ex. acantlwcarpa val". pringlei (Standley) Henrick­ The sheets at CH and NY have the date printed as 13 son, Southwest. Nat. 33: 461. 1988 July 1961, probably representing typographical errors. 324 GHEAT BASIN NATURALIST [Volume 55

At1'iplex breweri S. Watson, Proc. Amer. Acad. Arts 9; 119. Basionyrn: A. ap/,era A. Nelson IH74. := A. gardneri val'. artera (A. Nelson) Welsh Type locality: "Fremont; 459 Torrey; 75 Brewer" (I.e.). Paratypes: "Fremont's 2nd Expcdn. Atriplex Breweri Atriplex canescens var. aptera (A. Nelson) C. L. Hitchc., S. Wab."; NY lbrrcy!; "No. 459. Santa Barbara County, Vase. Pis. Paci{ NW. 2: 186. 1964. California. J. Torrey, 1865"; NY! and NY LeRoy!, CH! Basionym: A. aptem A. Nelson 'lype: "Geological Survey of California, 1863. Coll. H. := A. gardneri var. aptera (A. Nelson) 'Velsh Brewer. No. 7,5. Atriplex Breweri n. sp. Sea Shore-Stu Monica. 6"[O:J high or morc"; lectotype CHI, here desig­ Atriplex callescens ssp. garrettii (Rydberg) Hall & nated; isolectotypcs NY!, DC, US! Clements, Pub\. Carnegie Inst. Wash. 326: 344. 192:>. Since the plant "vas described by Watson on the basis Basionym: A. garrettii Rydberg of at least three collections, and as there are duplicates of the Brewer collection, it is proper to designate the materi­ Atriplex canescells val'. garrettii (Rydberg) Benson, Amer. al at GH a.~ lectotype. The sheet at US bears a sketch and J. Bot. .30: 236. 1943. notes by John TOITey: "75. Obione---near the Sea, at Sta Basionym: A. garrettii Rydberg Monica: Probably O. lentifonnis (large fruited) in an abnormal state. The hracts appear to have been changed Atriplex canescens var. gigantea Welsh & Stutz, Great hy galls." Basin Nat. 44: 189. 1984. Recognition ofA. breweri at taxonomic level as either Type: Utah, Juab Co., Lynndyl sand dunes, 1'355, a variety or subspecies of A. lentiformis is not without R4\V, 8 Sept. 1965, S. L. Welsh & G. Moore .5126; holo­ merit. Indeed, the plants have typically larger leaves and type BRY!; isotype NY! frtliting bradeoles that average larger. However, there is a The variety is based on its very broad bracts, stems series of intermediates that connect the robust coastal that produce roots by layering, thus accommodating bur­ material with the less robust plants in the interior. Plants ial in dunes, and diploid chromosome number. designated as belonging to A. brewed arc considered by me as taxonomically negligible. Atriplex canescens var. laciniata Parish, in Jepson, FI. Calif 442. 1914. Atriplex buxifolia Rrdberg, Bull. Torrey Bot. Club 39: 311. := A canescens X A. polycarpa? as to possible origin. 1912. Type locality: California, Imperial Co., "Caleb, := A. gardneri val'. aptera (A. Nelson) Welsh Colorado Desert, Parish 8256" (Jepson 1.e.). "lype locality: \Vyoming, Sheridan Co., Dayton, 1220 Type: California, Imperial Co., "Plants of Southern m altitude, September 1899, Tweedy 2456; holotype NY! California, Salton Basin, Caleb. About 200 feet below sea Type: "E 'J\veedy 2656 (2456 in publication), Dayton, level. No. 8256. Call. S. B. Parish. Oct 11. 1911"; holotype 4000 ft, Sheridan Co., Wyoming, September 1899"; lecto­ UC JEPS!; isotype GH! type NY! (Basset et al. Genus Atriplex in Canada 58. 1983). This variety has been suggested as based on speci­ mens intermediate between A. canescens and A. linearis Atriplex canescell.~ (Pursh) Nuttal~ Genera N. Amer. PI. 1: (C. A. Hanson l.e.), although Stutz (personal communica­ 197.1818. tion 1994) poses quite another possibility, Le., that a chro­ Basionym: CaUigonum canescens Pursh mosomal race of A. polycarpa forming hybrids with A. Putative or actual hybrids are known between A. canescens has resulted in at least partially stabilized popu­ canescens and A. confertifolia or A. gardneri (various vari­ lations of var. laciniata within the Salton Basin. The type dies). Such hybrids are only occasional; they do not swamp is characterized by deeply laeiniate, 4-lohed bracteoles within the size range of A. canescens. It has slender the characteristics of the taxa nor persist as populations. branchlets and narrow leaves approaching those of both The two exceptions to the sporadic nature of the hybrids A. lillearis and A. canescens var. macilenta, which had a involving A. canescens as one of the parental types are A. similar origin from a separate chromosomal race of A. gardneri val'. bunnevillensis and A. gardneri val'. aptera. polycarpa forming hybrids with A. canescens. l\either of these overwhelms the parental taxa, but heing long-lived, they persist for long periods of time and occu­ Atf'iplex canescens ssp. linearis (S. Watson) Hall & Cle­ py rather large areas in specific habitats. Bracts with four ments, Pub\. Carnegie Inst. Wash. 326: 344, pI. 58. 1923. wings appear to have arisen independently at several Basionym: A. linearis S. Watson places within the woody atriplexes. Such a condition is := A linearis S. Watson not necessarily an indication of close genetic affinities. Indc"ed, the garrettii and acanthocarpa complexes seem to Atriplex canescens var.linearis (S. ","'atson) Munz, Manual he more distantly removed from A. eanescens than from S. Calif. Bot. 141. 1935. other taxa. Basionym: A linearis S. Watson == A. linearis S. Watson Atriplex canescens var. angustifolia (Torrey) S. 'Vatson, Proc. Amer. Acad. Arts 9: 121. 1874. Atriplex canescens ssp. macropoda (Rose & Standley) Hall := A. canescens (Pursh) Nuttall & Clements, Phylog. Meth. Taxon 344. 1923. Basionym: Obione occidentale var. angustifolia Torrey Basionym: A. macropoda Rose & Standley Narrow-leaved shrubs from west lexas arc transitional This taxon is known fi'om Baja California. with broader-leaved materials both there and elsewhere. They do not seem to constitute a taxon. Atriplcx canel/cens var. macilenta Jepson, FI. Calif. I: 442. 1914. Atriplex canescens ssp. aptera (A. Nelson) Hall & Cle­ Type locality: California, Imperial Co., "Holtville, Colo­ ments, Publ. Carnegie Inst. Wash. 326: 343, pI. .58. 1923. rado Desert, Parish 8258" (I.e.). 1995] NORTH AMERICAN PEHENNIAL ATRIPLEX 'TYPES 325

'lype: California, Imperial Co" "Plants of Southern GIl!; isotypes DC (fragments taken from holotype by H. M. Calif{)rnia. Salton Basin. Bluffs of Alamo River, Halbartlc. lIalI)!, K, MO, US! About IS feet below Sea Level, S. B. Parish 82.'58, Oct 18, The type consists oftwo fertile bmnches, one pistillate 1812"; holotypc UC JEPS!; isotypcs D5 ("Calexico"), and the other staminate. Both have the small, narrow CHI, POM! leaves characteristic of the taxon throughout its rather The type has leaves to 4 mrn wide, narrowly oblanceo­ small range. The species is almost f"..xclusively restricted to late and obtuse apically. Bract:> are small, as in A. linearis, saline substrates ofsuch fine-textured strata as the members and toothed along the margin of the wings. The toothed of the Cretaceous Mancos Shale and Jurassic Morrison margin of the wings hints at the laciniatc nature of bracts Formation, inter alia, where it often occurs as a monotype. on plants from the nearby Salton Basin and named val'. It forms occasional hybrids with A. confertifolia and A. laciniata Parish. Plants called val'. macilenta approach but gardneri var. cuneata, with whom its ecology is sporadic. do not exactly match the more characteristic specimens of The taxon is probahly most closely allied to the latter, with A. linea,ris from southern Arizona and nortllCrn Mexico. which it shares large land areas, but from which its aute­ According to Stutz (personal communication 1994), the cology is restricted. It is regarded herein at species rank val: macilenta is a high polyploid, while A lineads is a because of the maintenance of morphological integrity diploid. The relatively broader, thicker leaves ofvar. maci­ despite occasional contact with the other taxa over much lentu are apparently diagnostic. of its area. Additionally, there are hints in its morphology The specimen at DS, Parish 8258, Oct. 1912, is labeled ofclose ties in still another direction, i.e., with A. ohovata. as having been taken on "Bluffs of the Alamo, Calexico." It is one of three localities cited under Parish's number Atriplex cuneata A. Nelson, Bot. Gaz. 34: 357. 1902. 82.53, and the specimens other than the one taken at = A. gardneri var. cuneo-ta (A. Nelson) Welsh Holtville are probably best considercd as paratypes. 'lype locality: "M. E. Jones 5443, Emery, Utah, 1894," Parish made a series of collections from the Salton Nelson (]9D2), Basin in October 1912. His numbers 8255 and 8256 were Type: M. E. Jones 5443, Emery; 7000 ft., Emery Co., collected on October 11; 8255 is a smal1-hracteoled, nar­ Utah, 16 June 1894; holotype RM!; isotypes MO!, NY! (3 row-leaved plant assignable to var. ma&'iJt.mta, the type of which (8258) was taken on 18 October. Parish's number sheets), US! 8256, the type of var. laciniata, is evidently closely placed geographically within the Salton Basin, which also sup­ Atriplex cuneata ssp. mtrogressa C. A. Hanson, Stud. Syst. Bot. Brigham Young Univ. 1: 4, 1962. ports A. polycarpa, which is potentially involved in the = A. gardned var. (:uneata X var. tridentata origin of hath vars. macilenta and laciniata through Type: Utah, Carbon Co., "Wellington, ca 0.1 mi S of hybridi:t..ation with different chromosome races ofA. poly­ Price River, in clay hills along road leading to city dump," carpo through hybridization with A. canescens. Number 9 July 1961, Hanson 346; holotype DRY!; isotypcs GHI, 8255 approaches A. linearn in size of bracts mId width of POM! leaves, and possibly that species is also involved in the The specimens on which this taxon are based demon­ derivation ofboth vars.laciniata and madlenta. strate intcrmediacy between the cuneata and tridentata phases ofA. ganlneri. Their recognition at any taxonomic Atriplex C(lnescens var, occidentale (Torrey & Ftemont) level is problematical. Welsh & Stutz, Great Basin Nat. 14: 188. 1984. Basionym: Ptemchiton occidentale Torrey & Fremont Atriplex curvidens S. Brundegee, Froc. Calif Acad. Sci. = A. canescens (Pursh) Nntt..-JI var. canescer/,s T. 2, 201, 1889. This name was resurrected on false supposition that n, the type ofA. canescens sensu stricto differed from the taU = A. polycll1pa (Torrey) Watson phases of the plant so widely dist.ributed in the American Type: Baja California, Comondu, four feet high, rounded April 24, 1889, Brandegee sn; holotype DC! West. It is an unfortunate later synonym. Atrilllex decumbens S, Watson, Proc. Amer. Acad. Arts 12: Atriplex collina Wooton & Standley, Contr. u.s. Natl. Herb. 16: 119. 1913. 27.5. 1877, = A. watsonii Nelson. = A. cor{ntifolia (rorrey & Fremont) S. Watson A. Type: Arizona, Apache Co., «dry hills near the north end Type locality: California, "Near San Diego; Dr. E. of the Carrizo Mountains," P. C. Standley 7481, 31 July Pahner, 187,5 (n. 334)" (Watson 1877). 1911; holotype US! Type: "Southern part of San Diego Co., California. CoIl. Edward Palmer, M.D., 1875. No. 334. Atriplcx Atrilllex confertifaUa (Torrey & Fremont) S. Watson, Proc. decumhens, Watson n. sp. Silll Diego"; holotype GHI; iso­ Amer. Acad. Arts 9: 119. 1874. type NY! (2 sheets). Basionym: Ohione confcrtifolia Torrey & Fremont, in The type consists of a small and a large branch, hoth Fremont staminate. The large branch is evidently from a sprawling herbaceous perennial. Leaves are mustly opposite, hecom­ Atriplex cormgata S. Watson, Bot. Gaz. 16: 341. 1891. ing subopposite above, elliptic to ovate-Ianceolate, obtuse Type locality: "Nearly allied to A. nuttaUii. Discovered to rounded apieal1y; the glomerules are 3-5 mm thick and by Miss Alice Eastwood at Grand Junction, Colorado, in are arranged in terminal spikes 1--4 em long. well formed fruit on 20th May, 1891. Miss Eastwood notes it as the earliest in fruit of several perennial species of the Atriplex eremicola Osterhout, Bull. Torrey Bot. Club 25: genus growing in the same locality" O.c.). 284. 1898a. nom. nov. Type: "Atriplex corrugata Watson, n. sp. Grand Junction, Basionym: A. fiuticu10sa Osterhout. Colorado. Miss Alice Eastwood-May 20/1891"; holotypc = A. gardneri (Moquin-Tandon) Dietrich var. gardneri 326 GREAT BASIN NATURAUST rVolume55

Atriple:t falcaia (M:. E. Jones) Standley, N. Amer. FI. 21: however, the resultant plant.. are readily recognizable and 68. 1916. ,U"e widely distributed from southcrn Canada south along Basionym: A. nut/ollii var. fau;ata M. E. JOll(~S, Coul!. the plains to Nehra.'iJ.:a and Wyoming. A COlI£~CeIlJ also W Bot. 1L 19. 1903. forms hybrids with other phases of the gardnerl. compJe.x = A. gardneri var.falcilla (~1. E. Jones) Welsh (sec below).

Atriplc:J: frllticosa NUU:l1I ex Moquin-Tandon, in de At·riplex ganltler; va ... bo"nedllensis (c. A. Hanson) Welsh, Cantlolle, Prodr. 13(2): 112. 1&19. pro syn. Creat Basin Nat. 44: 190. 1984. = A {;(/nlneri var. gardneri Basionym; A. bvnnet;illensi,~ C. A. Hanson 'lype: "Atriplex· jruticoslI. A. Halimurn atRnis. R. Mts." This variety is more or less intermediate I>etween A Nuttall; holotype BM! gardneri var. folcata lind A. canescens, but it most nearly The type of A. jrotico!Ju is mounted with collections resembles the fonner in habit. The bracteoles are 5-8 rom with the notation "British North America. Dr. Richardson long and ,'3-9 mm wiJe, ovoid, with four lateral wings or 1819-28," and designatl:d us A. ClIflf!Scens. In Index Kewen­ rows of flattened tubercules to 3 mm wide, or the wings sis the name fruticoSll is noted ~s a synonym of A. canes­ rarely absent. The plllnt.. arc confined to playa... and saline elms, -.t supposition lXlssibly based 011 the identity of the pa.ns in the valleys ofwestern Utah and across Nevada. Hichardsoll Inaterial, but more probably on the puhlica­ tion ofthe flame as il synon~'m ofA. calle5cens by Moquin­ Atriplex gardneri var. Ctmeata (A. Nelson) Welsh, Creat 'liuu.lun. The epithets fruticosa and heterophyUtl, both Basin Nat. 44: 191.1984. herharium naJlle.<; of Nuttall. were puhlished as synonym... Basionym: A. cuneata A. Nelson

Atriplcx fruticulosa Osterhout, Bull. Torrey Bot. Club 25: Atriplex gardneri vnr. welshii (c. A. Hanson) Welsh, Great 207. 1898. non A. frutir.;ulosu Jepson 1S92. Basin Nat. 44; 19.1. 1984. Basionym for: A. eremiculu. Osterhout Basionym; A. welshii C. A. I-Ianson = A. gardlleri (Moquin-Tandon). Dietrich var. ganlneri. 'I}.'pl~ loculity; \Vyoming, Alhlmy Co., Steamhoat Lake, Atriplex gardneri var. utrlhensis (M. E. Jones) Dorn, Vasco '~I1l(~ type was collected nellr II small alkaline lake in South· PI. Wvo. 130. 1988. el"ll Wyoming," C. Osterhout s.n. 2 July 1896; holotype Ba."iollym; A nuttullii var. utahensis M. E. Jones (no. 1324) HM!; isutype NY!, RM! (tllis second sheet, pre­ smnilbl)' ri var. ~ardneri. isotypes GH!, US!, UTI Despite earlier treatments in which this taxon W'

= A. obooata Moquin-Tandoll Uasionym: A. brewcri S. Watson Type locality: "l\ew :\1exko 10 Sonora. Collectors:­ = A. ltmtiformis sens lat? 1346 Berl.andi~r; 462 Grc~g: Emory; Thurher; Bigelow; .572,11.17, 1138 Wright" (Watsonl.c.). Atriplex lentiformis val'. breweri (5, Watson) McMinn, Paratypcs: "No. 462. Atriplex ubovata Mnq. Perros 1",lan. Calif. Shrubs 113. 1939. Bravos, Coahnila, Mexico, Dr. J. Gregg, leg. 1848-49" Basionym: A. brewed S. Watson (GIl Lowell!)j "Bt:rlandicr, No. 1346. Bae de del Salad, = A. lentiformis sens lat? San Luis Potosi, 1827" {em). Type; "462. Atriplex. Pen'OS Bnwos, north of Saltillo. 1 Atriplex leJltifoTtJlis 5$1)' griffithsii (Slandley) HlllI & ft. tall. Abundant. State afC.oallflila, Mexico. Dr. J. Cregg, Clements, Publ. Carnegie Inst Wash. 326: 336, pI. 55. leg. Sept. 20, 184S"'; lectotype GH! (I. M. Johnston, J. 19"...3. Arnold Arb. 25(2): 141. 1944); isoledotype GIl Lowell! Basionym: A. griffuJuii Standley = A. lentiform-is seos. lat? Atriplex griffithsii Standley, N. Amer. 1"1. 21: 63. 1916. = A. IcntiforYrlis vm: griffithsii (Standley) L. Benson At,.;plex lentiformis var. griffit1&sii (Slandley) Benson, 'lyPe: Ari:wna, Cochise Co.; "Wilcox," Critl'itbs so. Amer. J. Bot. 30: 236. 1943. 1895, Oct. 12, 1.900; holotype :\IYf; isotype US! Ba.~ionym: A. J!;riffithsii Staml!ey This is a distinctive taxon with silvery, thick leaves. It = A lentifomlis sens. lat'r is disjunct from the remainder of the species. Atriple,,' letll.iformis ssp. to,.,.cyi (S. Wntson) Hall & Atriplex heteropl,ylla Nuttall ex Moquin~Tandon, in de Clements, Publ. Camegie Inst. Wash..126: 335. 1923. Candolle, frock 13(2): H2. 1849. pro syn. Basionym: Obiunc tnrrcyi S. Watsoll = A. gartlncri (Moquin-'J.lmdon) DielJich vru: gardneri Type: <~triplcx * het.erophylla. R. Mts.~ Nunall; in­ Atriplex lelltifomiis vaT. torreyi (S. Watson) l\-lcMinn, tended type BYlI ~an. Calif Shrubs 113.1939. This is yet another herharium name by lIttall cited as l:Jasiollym: Obinne torn:yi S. Watson a synomym of A. canescen.~ by ~Ioquin-Tandon ill de Candolie's Prodromus. It again demonstrates that the Alriplex lillearis S. Watson, Pmc. Amer. Acud. Arts 24: 7'2." 1889. species was well represented in collections prior to the coHection of Ihe type material ofA. gardneri Type locaJjty: Mexicu, SOIlOr

Nom. nov. pro. A. oppositifolia S. Watson ofWatson thus includes the type of Calligonum canesCen8, and the epithet nuttallii is illegitimate under stipulations Atriplex navajoensis C. A. Hanson, Stud. Syst. Bot. Brig­ of the International Code. Hence, from a nomenclatural ham Young Univ. 1: 3. 1962. viewpoint there is no problem. Nuttall based his Atriplex = A. garrettii var. nalXl:ioensis (c. A. Hanson) Welsh & canescens squarely on Calligonum canescens Pursh, and Crompton Watson quoted A. canescens Nuttall as the name-bringing Type: ''Arizona: Coconino Co., east side of the Navajo synonym ofA. 11UttaIlii, which was stillborn. The lectotype Bridge, July 21, 1961," C. A. Hanson 388; holotype BRY!; of Caligonum canescens Pursh is at PH and is therefore isotype CH! the lectotype of both Obione canescens and A. nuttallii, which cannot be transferred to a different species or Atriplcx X neomexkcma Standley, N. Amer. Fl. 21: 67. 1916. brought to life by sophisticated arguments. Hence, the == A. gardnen vat. cuneata XA confertifolia proposal for lectotypification by McNeill et al. (1983) is Type locality: "Type collected on dry hills near Farming­ illegitimate. ton, New Mexico, altitude 1550-1650 ill, July 19, 1911, Paul C. Standley 7066 (US. Nat. Herb. no. 686089)." AtripWx nuttallU val'. anomaia M. E. Jones, ContI'. W Bot Type: New Mexico, "Dry hills "near Farmington," San 110 19. 1903. Jw:m Co., New Mexico, July 19. 1911, P. C. Standley 7066; == A. gardneri var.falcata (M. E. Jones) Welsh holotype US! Type locality: "The type is my specimens from Dolly The name is evidently based on plants intermediate Varden Smeltel; E. Nevada, July 1894 [1891r between A. gardneri var. (,'U1wata and A. confertifolia. Type: Nevada, Elko Co., "Marcus E. Jones Herbarium. Atriplex nuttallii val'. anomata [sic] Jones n. var. Dolly Atriplex nummularia Lindley, Mitch. J. Exped. Trap. Varden at the Smelter, VII-24-91. N.W. of Ibapah, Utah." Australia 64. 1848. M. E. Jones sn; holotype POM!; isotype UC (£rag.)! Type: Australia, "Cultivated in Italy, seed from South Jones was clearly in error in citing the date ofthe col­ Australia"; holotype not seen. lection as 1894. His itinerary cited in Leaflets of Western Botany (10: 189-236) places him at the Dolly Varden Atriplex nuttallii S. Watson, Proc. Amer. Acad. Arts 9: 116. Smelter on 24 July 1891, not 1894. 1874. nom. nov. == A. canescens (Pursh) Nuttall sens. str. Amp"" rndtaiJii ssp. buxijOUa (Rydbe.g) Hall & Clements, It is unfortunate that one must at this late date attempt Phylog. Meth. Taxon. 325. 1923. to analyze Watsons use of the name nuttaUii for a portion Basionym: A. buxifolia Rydberg of the woody atriplexes in the American West. From its =: A. gardneri (Moquin-Tandon) Dietrich var. gardneri publication in 1874 the name has been the source ofmuch confusion, serving to clutter Atriplex nomenclature for all Atriplex nuttalUi corrugata (S. Watson) A. Nelson, in subsequent time. It seems certain from a study ofWatson's Coulter & Nelson, New. Man. Bot. Rocky Mts. 168. 1909. proposal, justification for which can only be inferred, that == A. corrugata S. Watson he was merely presenting a new name for material that he Atriplex nuttallii ssp. cuneata (A. Nelson) Hall & Cle­ thought to be misinterpreted by contemporary botanists. ments, PubL Carnegie lust. Wash. 326: 324, f 45. 1923. The evolution of botanical thought with regard to the Basionym: A. cuneata A. Nelson perennial atriplex species parallels that for other newly = A. gardneri val'. cuneata (A. Nelson) Welsh discovered taxa in the American West and was initiated when the first of the woody specimens arrived fl:om west­ Atriplex nuttaUii ssp. falcata (M E. Jones) Hall & Cle­ ern botanical explorers. Few names were available, speci­ ments, PubI. Carnegie Inst. Wash. 326: 324. f 45. 1923. mens were few and often fragmentary, literature was diffi­ Basionym: A nuttallii var.falcata M. E. Jones cult to obtain, and it was easy to misapply concepts and == A. gardneri var.falcata (M. E. Jones) Welsh mix names, a symptomology not ofthat era alone. Supposed sensu names cited by Watson (1874) within Atriplex nuttalUi val'. falcata M. E. Jones, Contr. W. Bot. the synomymy ofA. nuttallii include Atriplex canescens as lL 19. 1903. used by Nuttall and an assortment of other historical =: A. gardneri vaxfalcata (M. E. Jones) Welsh authors, Obione canescens of Moquin-Tandon and other Type locality: "'Weiser, IdallO, July, 1899, Jones" O.c.). authors, and still another synonym, i.e., "A. gordonii Type: Idaho, Washington Co., "'Flora of Idaho. Type Hook.," with the citation "Pl. Geyer in Lond. Jour. Bot 5: material. Atriplex nuttallii var. falcata Jones n. val'. Weiser, 261?," and by implication the type of A. gordonii (i.e., A. Wash. Co. July 71899. Alt. 2200 Ft." M. E. Jones sn; holo­ gardneri). type POM!; isotype UC! Watson first cited the name A. canescen.s as published hy Nuttall (1818), the implication being that CaUigonum Atriplex nuttallii ssp. gardneri (Moquin-Tandon) Hall & canescens Pursh, basionym ofA canescens, could not apply. Clements, Pub}, Carnegie Inst. Wash. 326: 324. 1923. Nuttall is indeed author of the combination Atriplex =: A. gardneri (Moquin-Tandon) Dietrich Vat: gardneri canescens, and the place of citation is his 1818 publication, Basionym: Obione gardneri Moquin-Tandon wherein he cites C. canescens as the basionym ofhis com­ bination; furthermore, Nuttall's description is clearly C. Atriplex nuttallii ssp. tridentata (Kuntze) Hall & Cle­ canescens Pursh, sensu stricto. It is Watson's understand­ ments, Publ. Carnegie Inst. Wash. 326: 324. 1923. ing of Nuttall's use of the epithet that is in en'Ol: Thus, A. =: A. gardneri val'. utahensis (M. E. Jones) Dorn caneSGetu of Nuttall is certainly not a mere sensu name, Basionym: A tridentata Kuntze however one might wish to interpret the application of the epithet Both the name and the concept as supplied by Atriplex nutta.llii var. gardneri (Moquin-Tandon) R. J. Nuttall are A. canesCen8, including its basionym. A. nuttallii Davis, Fl. Idaho. 261. 1952. 1995] NORTH AMERICAN PERENNIAL ATRIPLEX TYPES 329

= A gardneri (MoquillHTandon) Dietrich vaT. gardneri This is a coarse specimen, very woody and obviously Basionym: Obione gardneri Moquin-Tandon intermediate between A. canescens and A. gardneri var. gardneri Atriplex nuttallii vaT. tridentata (Kuntze) R. J. Davis, FL Idaho 261. 1952. Atriplex oppositi/olia S. Watson, Proc. Amel: Acad. Arts 9: = A. gardneri var. utahensis (M. E. Jones) Dorn 118.1874, non DC. Basionym: A. tridentata Kuntze =: A. matamorensis A. Nelson; Obione oppositijolia (S. Watson) Ulbrich, in Engler & Prand Atriplex nuttallii var. utahensis M. E. Jones, Contf. W. Bot. Type locality: "In the Rio Crande Valley on the Mexican II. 19. 1903. side, collected only by Berlandier (No. 3201, 'Matamoras = A. gardneri var. utahensis (M. E. Jones) Dorn to San Fernando')" (Watson Lc.). Type locality: "This is No. 1760 Jones from Salt Lake Type: "de Matamaras a San Fernando circa Cuijano, City, and is the more common form in Utah," Oct. 1830," and "Herbarium Berlandierianum Texano­ Type: Utah, Salt Lake City, Salt Lake Co., M. E. Jones Mexicanum. No. 3201. A. oppositifolia n. sp. S.w.! [initials 1760, 16 June 1894; holotype POMP; isotype DC (frag.)! are Sereno Watson's on sheet at CH]," Berlandier; holo­ type CHI; isotype NY! Atriplex oblanceolata Rydberg, Bull. Torrey Bot. Club 31: The specimen at CH is doubly mounted with Palmer 403. 1904. 1160, 1879. It is a portion of a herbaceous perennial with = A. gardneri var. cuneata (A. Nelson) Welsh minute leaves ca 2---.3 mm long and 1 mm wide. Bracteoles Type locality: Colorado, Delta Co" Delta, Cowen 4071 are conspicuously veined on the faces and prominently (Rydbe,g 1904). toothed lateral to the apical tooth. Type: "Plants of Colorado. No. 4071. Atriplex oblance­ olata Rydb. Delta, J. H. Cowen. Sept 3, 1897"; holotype Atriplex orbicularis S. Watson, Proc. Amer. Acad. Arts 17: NY!; isotypes CHI, RM! (2 sheets), US! 377.1882. = A. lentiformis (Torrey) S. Watson (the A. breweri S. Atriplex obovata Moquin-Tandon, Chenop. Enum. 61. Watson phase) 1840. Type locality: ''At Santa Monica, California, on the sea­ Type locality: "In Peruvia. (v. s. in herh. Mus. Paris)" a.c.). shore at the base of the bluffs; S. B. & W. R Parish, Type: "No. 1346. Bae del Salad, Saint Louis Potosi. Dbre. October, 1881" (W"atson 1882). 1827," and "Herbarium Berlandierianum Texano-mexi­ Type: "Flora of Southern California, S. B. & R W. Parish, No. 1126, perennial, somewhat woody at base, 3-4 canum. No. 1346. Atriplex obovata, Moq.l O. canescens, ft high, base of bluffs, sea shore, Sta Monica, Oct. 1881"; var? Torr. San Luis Potosi; Mexico, State of San Luis holotype CHI; isotypes DS!, NY!, US! Potosi, Berlandier 1346"; lectotype P? (I. M. Johnston, J. The fruiting bracts are ca 3 mm high and 4 mm wide. Arnold Arbor. 25[2J: 148. 1944); isolectotype CH! Leaves are elliptical and obtuse, tapering basally to a short The isolectotype sheet at CH consists of three leafy petiole. branches, now lacking fruiting bracteoles or staminate flowers. The material is certainly a match for what has tra­ Atriplex pahularis A. Nelson, Bull. Torrey Bot. Club 25: ditionally passed under the name obovata; hence, there is 203.1898. no problem with its interpretation. = A. gardneri var. utahensis (M. E. Jones) Dorn Type locality: Wyoming, Sweetwater Co., Point of Atriplex obovata var. tuberata Macbride, Contr. Cray Rocks, A. Nelson 4429, Aug. 30, 1897. Herb. 3, II. 1918. Type: "A. Nelson 4429, Bitter Cr., Point of Rocks, 6500 =: A. obovata Moquin-Tandon ft, Sweetwater Co., Wyoming, 30 August 1897"; lectotype Type locality: Texas, EI Paso Co., Fomillo Creek, at RM! (Hall & Clements, Publ. Carnegie Inst. Wash. 326: Harberd 103. 324. 1923); isolectotypes CH! (two sheets, male and Q Type: "No. 103 (see specimen ofmale).1-2 [feet] high female), Nyl, USI -Foliage & specially fruit different from that of A. acan­ thocarpa. Tornillo Creek. W Texas. Aug. [18]83. v: Havard, Atriplex pahularis var. eremkola (Osterhout) A. Nelson, U.S.A."; holotype CHI; isotype US! Coulter & Nelson, New Man. Bot. Rocky Mts. 168. 1909. The sheet at CH has two branches, one staminate and Basionym: A. eremkola. Osterhout one with fruiting bracteoles. The bracteoles are rather = A gardneri (Moquin-Tandon) Dietrich var. gardneri strongly tuberculate, a feature not unusual within the species as a whole. Atriplex parryi S. Watson, Proe. Amer. Acad. Arts 17: 378. 1882. Atriplex occidentalls (Torrey & Fremont) Dietrich, Syn. Type locality: "Near Colton [actually at Lancaster PI. 5, 537. 1852. according to Parish in Zoe 5: 113, 1901J, California; Dr. Basionym: Pterochiton occidentale Torrey & Fremont C. C. Parry 1881"; holotype (Parry 221) CHI; isotypes NYl, =: A. canescens (Pursh) Nuttall UC (frag.)! The type consists of a branched stem, with lateral Atriplex odontoptera Rydberg, Bull. Torrey Bot. Club 31: spinescent stems to 4 cm long. The leaves are ovate-orbic­ 404.1904. ular. The plant is obviously allied to A. confertifolia, but =: A. canescem X A. gardneri var. gardneri distinct. Type: Wyoming, Johnson Co., "3302. Atriplex canescens (Pursh) James. A. odontoptera Rydb. (Type) Buffalo. Ele­ Atriplex polycarpa (Torrey) S. Watson, Proc. Amer. Acad. vation 4000-5000 feet. Frank Tweedy. September 1900"; Arts 9: 117.1874, holotype NY!; isotype RM! Basionym: Obione polycarpa Torrey 330 GREAT BAS1N NATUHALIST [Volume 55

Atri1Jlex pringlei Standley, N. Amer. Flora 21: 68. 1916. 'Iype: "No. 1379. Atriplex confertifolia (Torr.) Wats, = A. acantlwcarpa ssp. pringlei (Standley) Henrickson Dry hench lands, alt. 3700. Twin Falls and Shoshone Falls, Type locality: "Type collected on alkaline plains, 3700 ft., Idaho, July 27, 1911, Aven Nelson & J. F. Hacienda de Angostura, San Luis Potosi, Mt'-xico, July Hi, Machride"; holotype NY!; isotypes GIl!, MO!, paM, HM!, 1891, C. C. Pringle 3775 (US. Nat. Herh. no. 48298)." UC, US! lype: "Mexico, Slill Luis Potosi, alkaline plain, Hacienda This appears to be a small-leaved phase of A conferti­ de Angostura, 15 JuI1891," C. G. Pringle 3775; holotype folia oflittle or no taxonomic significmlce. US!; isotypo GIl! Atriplex tetralJf..era (Bentham) Rydberg, Bull. Torrcy Bot. Atriplex sabulosa M. E. Jones, Contr. W. Bot. 11: 21. 1903. Club 39, 311. 1912. non A. sahuwsa Rouy, 1890. Basionym: Obume tetraptera Bentham Basionym of: A. jvnesii Standley = A. canescens (l'ursh) Nuttall = A. ubovnta Moquin-Tandon Type locality: Arizona, Navajo Co., "No. 4109 Jones, Atriplex torreyi (S. Watson) S. Watson, Proc. Amer. Acad. Winslow, Ariz., Sept., 1884, distrihuted as A. Greggii" Arts 9: 119. 1874. (Jones Hl(3). Basionym: Ohiorw torreyi S. Watson Type: "Flora of Arizona. 4109. Atriplcx Grcggii, Watson. Winslow, M. E. Jones, September 1, 1884"; holotype US!; Atriplex torreyi var. griffithsii. (Standley) G. D. Brown, isotypes GIl!, NY!, POM! Amer. Midi. Nat. 55; 205. 1956. The isotype at GIl consists of three hrandlCs, two sta­ Basionym: A. griffitAsii Standley minate and one pistillate. = A. lentiformis (li.Jrrey) S. Watson

Atriplex spinijera Macbride, ContI'. Gray IIerb. 5.1: 11. Atriplex tridentata Kuntze, Hev. Gen. PI. 2: 546. 1891. 1918. = A. ganlneri val'. utahensis (M. E. Jones) Dorn '1)lpe locality: CaMarnia, Kern Co., Maricopa Hills, May Type locality; Utah, Box Elder Co., Corrine, Kuntze 1.5, HH3, Eastwood 3269 (Macbride 1918). 3084. 1874. Type: "3269. Flora ofCalifornia. Atriplex. Marcopa hills, 'lype: O. Kuntze 3084, "Bei Corinne am Salzsee, 7000 Kern Co., Alice Eastwood May 15, 1913"; holotype GH!; [much too high] ft., [Box Elder Co.J, Utah, September 1874"; isotype CAS!, US! holotype NY!; isotyper K! The holotype at GIl consists ofa hranched stem hear­ 'I1Ie specimen at K, labeled 'J\triplex tridentata OKze ing lateral spinescent brmlches to 4.2 cm long; that at US n. sp. U.S. N. Am. zw. Cheyenne & Corinne. 7000'. Sept. 74. consists of spinose branchlets and two packets of fmiting 3084. Herbarium Otto Kuntze," i~ perhaps best regm'ded braclcolcs, as a paratype. Atripl.ex spinosa (Moquin-Tandon) D. Dietrich, Syn. 1'1. Atripl.ex watsonii A. Nelson, !'roc. BioI. Soc. Wash. 17: 99. .'): 536. 1852. 1904. nom. nov. pro A. decumbens. Basionym: Ohione spinosa Moquin-Tandon, in de ~,'lld{)lle Basionym; A decumhem S. Watson = A. carwscens (Pursh) Nuttall Atriplex welshii C. A. Hanson, Stud. Syst. Bot. Brigham Atriplex stewartii I. M. }011l1stou, J. Arnold Arbor. 22: 110. Young Univ. L 1. 1962. 1941. = A gardneri var. welshi.i (C. A. llmlson) Welsh = A. acanthocarpa ssp. stewartii (I. M. Johnston) Type: "Utah: Grand Co., 4 mi south ofCisco along state Hellrickson highway 128, July 5, 1961"; c. A, Hanson 322; holotype Type locality: Mcxico. BRY!; isotypes GHI, lSC! Type; "Mexico: western Coahuila. Atriplex stewartii n. sp. Jour Am. Arb. 22: 110. 1941. Eastern horder of the Calligonum canescen... Pursh, FI. Amor. Scpt. 2; 370. 1814. Llano de Guaje, along road from Tauque del Aparejo 20 = A canes-cens (Pursh) Nuttall miles southeast of llmque Armendais, Ahundant on flats Type locality: Lymml or Buffalo countics, South Dakota, margining playa at hase of Lomas del Aparego (3 miles M. Lewis in 1804. south of Tangue Asparejo). Plant erect, 10-15 inches tall. Type: "Big Bcnd ofthe Missouri, Sept. 21, 1804," Lewis 1. M. Johnston, C. I-I. Muller No. 777. Aug. 28, 1940"; mld Clark Herbarium; lectoypc I'll!, G. D. Brown, Amer. holotype CH! MidI. Naturalist 55: 209. 1956. The plant is obviously allied to A. anthocuJ-p(f, the vari­ The original description of Calligunurn canescens ahly 4-winged fruiting bracteoles having been derived Pursh is "C. dioicum, pulvcrulcnto-fruti~ulosurn;folis independently or possibly through introgression from A lmlCeolatis, floribus axillaribus glomeratis in api~e rarnulo­ can.escem. Henrickson (1988) does not suggest the latter rum subspieatis, fructibus alatis, alis venosis eristato-den­ possibility but docs note that the 4-winged condition is taUs. In the plains of the Missouri, nem' the Big bend. II. not consistent, that there is a transition from that concli­ July, Aug. v.s. ill Herb. Lewis. Flowers exceeding small. tion to those where the wings are replaced by radiating Goats delight to feed upon this shmb." processes. The sheet at PH contains three branches, the left one with immature fruit, the middlc one sterile, and the one at Atriplex :mbcOl1f(!1·ta Rydberg, FI. Rocky Mts. 248. 1917 right with mature fruiting bracteoles. This latter specimen [191H]. was designated specifically ~L~ the lectotype hy McNeill et = A confe1"tifolia (1i.mcy & Fremont) S. Watson al. (1983); it clearly fits the c()n~ept ofthe species as inter­ Type locality: Idaho, between Twin and Shoshone preted by contemporary authors, except for Stutz and Falls, Nel~nn & Macbride 1379; holotype NY; isotypes Sanderson (1979), who claim that the type belongs to what POM, UC. was subsequently named A aptera A. Nelson, hased on the 1995] NORTH AMERICAN PERENNIALATRIPLEX TYPES 331 assumption that the Lyman County, South Dakota, type This species is noted by Fremont (1845) in his journal locality is not within the current range of A. canescens as entry for 10 September 1843, on his return trip from presently accepted but is within the range of A. aptera. Disappointment [Fremont] Island. The plant was probably Examination of a great many specimens from throughout collected on the trip from the water's edge to the camp on the western plains has failed to yield a plant of A. aptera the lower Weber Rivet; in Weber Co., Utah. The holotype with fruiting bracteoles identical to the lectotype, which is consists of a single branch in young fruit. The sheet bears matched many times among the specimens traditionally the notation in Torrey's handwriting, "Obione rigida vm: passing as A. caneSCen8. confertifolta n.sp. (crossed out) T. & F." Below the notation The type sheet bears the designation "Sept. 21, 1804," is a drawing of a fruiting bract, with one side folded back, and the site of the Lewis and Clark camp on that date is and an ovary. This is clearly the specimen on which the adjacent to present Lower Brule, Lyman or Buffalo coun­ species was based. There is a second sheet at NY!: ties, a short distance above the confluence of the White "Fremont's 2nd Expedn." with the notation "Grayia or near River. That portion of the Missouri River has been inun­ it." The specimen has male inflorescence fragments and dated by waters behind the Fort Randall Dam, far down­ clearly is not a portion ofthe type collection. stream. Nuttall had traversed the river corridor in 1811, going upriver as far as Fort Mandan. The description and Obione coriacea (Forssk.) Moquin-Tandon, Chenop. discussion by Nuttall (1818) of the species is pertinent to Enum. 71. 1840. the interpretation ofthe Lewis type material. He describes This Egyptian species was compared by Torrey and the plant as about 3 or 4 feet high, with the "calix (i.e., Fremont (Fremont 1845) with Obione confertifolia (see fruiting bracteoles) 2-parted, becoming indurated, acute, above). It does not occur in North America. with 4 unequal cristated or dentated angles"; the habitat was designated: "On the denudated saline hills of the Obione gardneri Moquin-Tandon, in de Candolle, Prodr. Missouri [possibly a reference to the lower-growing, vari­ 13(2), Il4. 1849. able, gardneri-like A. aptera]; commencing about 15 miles = A. gardneri (Moquin-Tandon) Dietrich var. gardn.eri below the confluence of the White River, and continuing Type locality: SE Wyoming or W Nebraska, "Ad La to the mountains [Le., to the Mandan, as near as he went Platte, Gardo. n. 250" (Moquin-Tandon in de Candolle I.e.). toward the mountains]." Much ofthe habitat where plants Type: «Gordon 250. L.:'1 Platte. Obione Gardneri Moq. typical of A. can.escens, as traditionally interpreted, could A low female plant, lax spike in fruit," possibly 1843; holo­ have grown is beneath the waters of Fort Randall Dam, type K?; isotype GH! and a valid assumption that typical A. canescens did not The fragments at GH consist of a leaf and two imma­ occur there cannot be made. Some plants from areas of ture fruiting bracteoles, probably taken from the type at K South Dakota adjacent to Lower Brule clearly approach (Hooker herbarium), which we have not seen. Writing on typical A. canescens. There is no justification for interpre­ the fragment envelope is in ink, but partly illegible. The tation of the name differently from that used in the his­ name of the collector is subject to interpretation, hut is toric past. presumed to be "Gordon." Moquin-Tandon interpreted it as "Gardner," and named the species after the person Obione acantlwcarpa Torrey, U.S. & Mex. Bound. Bot. 2: assumed by him to be the collector. The epithet was 183.1859. spelled gardneri on purpose and is not an orthographic = A. acanthocarpa (Toney) S. Watson variant. It is legitimate under stipulations of the Inter­ Type locality: "Plains between the Burro mountains; national Code. September, Bigelow, (in fruit.) On the Rio Grande, below Presidio del Norte; Parry. Near the Piloncilla, Sonora, Obione hymenelytra Torrey, in Whipple, Pacif. R. R. Rep. September"; Thurber. (No. 1739; Wright. His No. 1737 4, 129. 1857. seems to be a slender form ofthe same.) = Atriplex hymenelytra (Torrey) S. Watson Type: "Rio Grande below Presidio del Norte (EI Paso), Aug." Parry s.n.; lectotype NY! (Henrickson Southwest. Nat. Type locality: "Hills and gravelly places on the William's 33: 454. 1988); isolectotype NY! River [BigelowJ. This species was found by DI: Parry and by Colonel Fremont on the Gila" O.c.). Ohione herlandieri (Moquin-Tandon) Moquin~Tandon, Type: «Fremont's Expedition to California, 1849. in de Candolle, Prock. 13(2): 114. 1849. Obione hymenelytra, n. sp." (lectotype NY!, Brown, ArneI'. Basionym: A. berlandieri Moquin-Tandon MidI. Nat. 55: 203. 1956.). "'Fremont's Expedition to = A. canescens (Pursh) Nuttall Califomia, Gila" [1849J (presumed isolectotypes NY Crooke!, CHI). A third sheet, "Fremont's 2nd Expedition," is at NY! Obione canescens (Pursh) Moquin-Tandon, Chenop. Except for the sheet designated as lectotype, the Fremont Enum. 74. 1840. materials from 1849 are scanty, consisting mainly offruiting Basionym: CaUigonum can.escens Pursh bracts (presumed isolectotypes NY!, GH!) and a branchlet = A. canescens (Pursh) Nuttall ofequivocal source (GH!). The lectotype at NY bears all of the accoutrements of a Torrey type specimen, except for Obione confertifoUa Torrey & Fremont, in Fremont, Rep. lack of illustrations, but includes a descriptive label in Explor. Exped. Oregon & California 318. 1845. Torrey's handwriting and the name Obione hymenelytra, = Atriplex confertifolia (Torrey & Fremont) S. Watson n. Sp., on the label. Type locality: «On the borders of the Great Salt Lake" (l.e.). Obione lentiformis Torrey, in Sitgreaves Rep. 169. 1854. Type: "Obione confertifolia, Torr. & Frim. in Frem. = Atriplex lentiformis (Torrey) S. Watson 2nd Reprt. (1845). Borders of the Great Salt Lake [near Type locality: California, along the Colorado River, S. W mouth of Weber River, Weber Co.], Utah. 761. 1843"; Woodhouse S.n., 6 November 1851 (Sitgreaves Expedition, Fremont s.n. probably 10 September 1843; holotype NY! November 1851) O.c.). 332 GREAT BASIN NATURALIST [Volume 55

Type: "Sitbtreave:-; Report 1851. Obione lentitCmnis Torr. Gila River [near base of Mt. Graham, ca 1.3 mi SWof in Sitgreaves ex Torrey. Rio Colorado, Calif.-Nev. ex Stafford]," October 28, 1846, Emory S.n.; holotype NY! 'lorrey"; "Rio Colorado. Nov. 6th 1851. Dr. Woodhouse"; lectotype NY! (selected hy F. V. Coville, Cantr. u.s. Natl. Obione rigida Torrey & Fremont, in Fremont, Rep. Explor. Herb. 4: 181. 1894); isolectotype CHI Exped. Oregon & California 318. 1845 (nom. nud.). = Atriplex coriferlifolia (Torrey & Fremont) S. Watson Obwne lentiformis ~ rhombi/olia lorrey, PaciHc R. R. Rep. Authentic specimen: "Obione rigida 1'. & F. On an 4, 129. 1857. island (Fremont Island] in Creat Salt Lake, [Weber Co., Type: Arizona, NY? Utah], Fremont 767, 1843"; Fremont s.n., 9 September I have been unable to locate material at NY with this 1843 (NY!, Torrey!). designation nor make a determination as to its disposition The name was published without a description and is a taxonomically. nomon nudum. The specimon was taken on 9 September 1843 when Fremont and his boating party were on Obione leucophylla Moquin-Tandon, in de CandolIe, Disappointment [l

The bolotype at GH is doubly mounted with Parr)' KUNTZE, D. E. O. 1891. Revisio Genera Plantarum 1: 280, 1881. It is staminate, with glomerules ca 2 mm thick 1-374. arranged on short lateral spikes (to ca 1.5 em long) on lat­ :MACBRIDE, J. F. 1918.• ew or otherwise interesting plants, eral branches ofa much larger panicu]ate cluster to 28 em mostly North Amedcan Liliaceae and Chenopodia­ long. Branches are longitudinally striate and ridged with ceae. Contributions from the Cray Herbarium 3: low, acute ridges. 1-22. Mc~1Ll>l~, H. E. 1939. An illustrated manual ofCalifornia Phyllocarva spiuosa Nuttall ex Moquin-Tandon. in de shrubs. J. W Stacey. Inc., San Fnmciso. Calldolle, Prodr. 13(2): 108. 1849. pro S}'l1. McNEILL, J., r. J. BASSETT, C. W CROMPTOK, A:-lD P. M. = A. canescens (Pursh) Nuttall TASCHEREAU. 1983. Taxonomic and nomenclatural notes on Atriplex L. (Chenopodiaceae). Taxon 34: Pterochiton canescens (Pursh) Nuttall, J. Acad. Nat. Sci. 549~56. Philadelphia 1: 184. 1847. MOQUIN-TAKOOt\·, A. 1840. Chenopodearum Monographica Basionym: Calligotlum canescens Pursh Enumerato. P. J. Loss, Paris. = A canescem (Pursh) Nuttall · 1849. Amplex L. In: A. P. de Candolle, Prodro­ --m-us Systematis Naturalis Regni Vegetabilis 13(2): Ptemchiton QCcidenwle Torrey & Fremont, in Fremont, 90-115. Rep. Exp)or. Exped. Oregon & California 318. 1845. NELSOK, A. 1898. New plants from Wyoming, l. Bulletin A occidental's (Torre)' & Fremont) Dietrich; A canes­ ofthe Torrey Botany Club 25: 202-206. cens var. occidentalif (Torrey & Fremont) Welsh & Stutz __,' 1902. Contributions from the Rocky Mountain Her­ = Atriplex CGnescens (Pursh) Nuttall var. canescens barium, IV. Botanical Gazette 34: 355-371- T:vpe locality: '"The precise locality of this plant we · 1909. Atriplex L. In: J. Coulter and A. elson, New cannot indicate, as the label was illegible; but it was prob­ --m-anual of botaoy of the central Rocky Mountains. ably from the borders of the Creat Salt lake" (le.). American Book Company, New York. Type: "Pterochiton occidentale Torr. & Frem.n Fremont, Ntm'ALL, T. 1818. The genera ofNorth American plants 1: probably 10 September 1843 [locality data are missing 1-312. D. Hearn, Philadelphia, PA. from the type specimen] (holot)'pe NY1; microfiche BRYI). __-;' 1847. Plantes Gambler (?). Journal of the AC'<'Idemy The herbari.um sheet hears a folded sheet of paper ofNatural Scienc~, Philadelphia 1: 184. with the usual careful and detailed drawings of bracts, OSTERHOlo--r, G. 1898a. A new Atripler. Bulletin of the embryo, and seed, and the designation "Pterochiton." In Toney Botany Club 25: 207. the lower right corner of the sheet is written "Fremont, t\'. __,,' 1898b. A correction. Bulletin of the Torrey Botany Gen. Pterocalyx," and at the bottom center the words Club 25, 284. "Pterochiton occidentale, Torr. & Frem." The sheet con­ PURSH, F T. 1814. Flora Americae Septentrionahs 2: tains three branches, with the bracts mainly fallen away. 359-751. White, Cocchrane and Company, London. This sheet was designated as lectoype by G. D. Brown, RYDBERG, P. A. 1904. Studies on the Rockv Mountain flora Amer. MidI. Nat. 55: 209. 1956, but no other specimens XI. Bulletin of the Torrey Botanical Club 31: 399-410. are cited with the protologue and the designation should _---;;;,.1912. Studies on the Rocky Mountain flora x,'XV!. be holotype. Bulletin ofOle Torrey Botanical Club 39: 99-113. · 1917 (i91S]. Flora of the Rod.")' Mountains and --ad-;jacent plains. Published by the author, New York. REFEREKCES _---;". 1932. Flora of the prairies and plains of central orth America. The ew York Botanical Garden, BROW).!, G. D. 1956. Taxonomy of American Atripler. New York American Midland Naturalist 55: 199-210. ST."'~DLE'Y, P. C. 1916. Chenopodiales. North American D.WIS, R. J. 1952. F10ra of Idaho. W. M. C. Brown Com­ Flora 21: 1-93. pany, Dubuque. IA. _---;,.. 1917. The Chenopodiaceae ofthe North American DIETRJCH. N. F. D. 1852. Synopsis Plantarum. Sec. V. flora. Bulletin of the Torrey Botanical Club 44: Vi.mari.ae: Frieder. Voigtii. 411-429. HALL, H. M., AND F. E. CLEMENTS. 1923. The phylogenetic _---;,-. 1922. Trees and shrubs of ~'texico. Contributions method in taxonomy. Publications of the Carnegie from the U.S. National Herbarium 23: 1-690. Institute, Washington 326: 1-355. STUTZ, H. C. 1978. Explosive evolution ofperenniRl Atriplex HANSON, C. A. 1962. New species of perennial Atriplex in western North America. Pages 161-168 in K. T. from the western United States. Studies in Systematic Harper and J. L. Reveal, editors, Intermountain Botany, Brigham Young University L 1-4. biography; a symposium. Great Basin Naturalist HENRICKSO~, J. 1988. Revision of Atriplex acanthocarpa Memoirs 2. complex. Southwestern NaturaJist 33: 451-463. STUTZ, H. C., AND S. C. SANDERSON. 1979. The role of JEPSON, w. L. 1914. Chenopodiaceae. Flora of California, polyploidy in the evolution of Atriplex canesceus. In: 1(4): 428-448. Associated Students Store, University 1- R. Godin and D. K. Northington. editors, Arid ofCalifornia, Berkeley. plant resources. International Center for Arid and JOHNSTOK, I. M. 1941. New phanerogams from Mexico. Semi-mid Land Studies, Lubbock, TX. rv. Journal ofthe Arnold Arboretum 22: 110-124. TORREY, J. C. 1848. Botany. In: W. Emo1)~ Notes ofa mili­ __~. 1944. Plants of Coahuila, eastern Chihuahua, and tary reconnaissance from Fort Leavenworth, in adjoining Zacatecas and Durango. V Journal of the Missouri, to San Diego, in California. U.S. Government Arnold Arboretum 25: 135-182. Printing Office, Washington, DC. JONES, M. E. 1903. Chenopooiaceae. Contributions to ---c:c' 18.52. AppendiX D, Botany. In: H. Staosbury. Ex­ Western Botany 11: 18-22. ploration and survey of the valley of the Great 334 GREAT BASIN NATURALIST [Volume 55

Salt' Lake of Ut,th. Lippcncott. Grambo & Co., WAiS<)N, S. 11')71. Butany. In: C. King, Report ofgeological Philadelplli

o 1859. &tany ofthe boundary. Pages 30-259 in W. Mexico. ooUected chiefly by Dr. E. Palmer in 1879-80. --~E;mory, Report of the u.s. and Mexican boundary -Polyp~talae. Proceedillg.'1 of the American Academy survey_ Volume Il U.S. Department of the Interiol; ofArts 170 3Hhl78. Wtl.~hinglon. DC. _-,,.;' 1891. Atriplex in articles. Botanical Gazette 16: TOIIHI':Y, }. C., ANI) J. C. FREMONT. 1845. Descriptions of 345-346. some new genera and species of plants, collected in Woan:N. K 0., AND P. C. STAND[£\'. 1913. Descriptions Captain J. C. Fremont's exploring expedition to of n~w plants prelinlLnary to a report on the lIora of OI'~g{Jll and Nurth C"ullfornia. in the years 1843--'44. New Mexico. Contributions of the u.s. Natfoual P-.I.gt'n'1 311--319 in J. C. Fr~mont, A report of the ex­ Herharium 16; 109-196. ploring t:xpeditlon to Oregon and North California, in the ye