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Santa Cruz Tarplant

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Santa Cruz Tarplant 15142 Federal Register / Vol. 63, No. 60 / Monday, March 30, 1998 / Proposed Rules #Depth in feet above ground. *Elevation in feet. State City/town/county Source of flooding Location (NGVD) Existing Modified Maps are available for inspection at the Midland County Engineer's Office, 2145 East Highway 80, Midland, Texas. Send comments to The Honorable Jeff Norwood, Midland County Judge, County Courthouse, 200 West Wall, Midland, Texas 79701. Texas ..................... Victoria County Coleto Creek .................... Just upstream of FM 466 ......................... *66 *66 (Unincorporated Areas). Approximately 1.1 miles upstream of *90 *86 Southern Pacific Railroad. Whispering Creek ............. Approximately 830 feet upstream of John *112 *111 Stockbauer Drive. Approximately 3,600 feet upstream of *119 *118 Loop 463. Maps are available for inspection at the Victoria County Floodplain Administration, 2805A North Navarro, Victoria, Texas. Send comments to The Honorable Helen R. Walker, Victoria County Judge, 115 North Bridge, Room 127, Victoria, Texas 77901. (Catalog of Federal Domestic Assistance No. to the Ventura Fish and Wildlife Office, gland. The yellow flower head is 83.100, ``Flood Insurance'') U.S. Fish and Wildlife Service, 2493 surrounded from beneath by bracts that Dated: March 20, 1998. Portola Road, Suite B, Ventura, each have about 25 stout gland-tipped Michael J. Armstrong, California 93003. Comments and projections (Keil 1993). Holocarpha Associate Director for Mitigation. materials received will be available for macradenia is distinguished from other [FR Doc. 98±8076 Filed 3±27±98; 8:45 am] public inspection, by appointment, members of the genus by its numerous BILLING CODE 6718±04±M during normal business hours at the ray flowers and its black anthers. above address. Historically, habitat for Holocarpha macradenia consisted of grasslands and FOR FURTHER INFORMATION CONTACT: Carl DEPARTMENT OF THE INTERIOR Benz, Assistant Field Supervisor, prairies found on coastal terraces below Listing and Recovery, Ventura Fish and 100 meters (m) (330 feet (ft)) in elevation, from Monterey County north Fish and Wildlife Service Wildlife Office (see ADDRESSES section) to Marin County. In the Santa Cruz area, (telephone number 805/644±1766; 50 CFR Part 17 the gently sloping terrace platforms are facsimile 805/644±3958). separated by steep-sided ``gulches,'' RIN 1018±AE80 SUPPLEMENTARY INFORMATION: whereas in the Watsonville area Endangered and Threatened Wildlife Background (Monterey County) and on the east side and Plants; Proposed Threatened of San Francisco Bay, the terraces are Holocarpha macradenia (Santa Cruz Status for Holocarpha macradenia more extensively dissected, and tarplant) was first recognized by (Santa Cruz tarplant) Holocarpha macradenia populations Augustin-Pyramus de Candolle, who occur on alluvium derived from the AGENCY: Fish and Wildlife Service, published the name Hemizonia terrace deposits (Palmer 1986). The soils Interior. macradenia in 1836 (Ferris 1960). In are typically sandy clay soils; the clay ACTION: Proposed rule. 1897, E. L. Greene referred the species component of these soils holds moisture to the genus Holocarpha with long into the growing season. The SUMMARY: The U.S. Fish and Wildlife publication of the new combination coastal prairie habitat, found from Service (Service) proposes threatened Holocarpha macradenia (DC.) E. Greene Monterey Bay and northward, is status pursuant to the Endangered (Ferris 1960). This name has continued becoming increasingly fragmented and Species Act (Act) of 1973, as amended to be recognized in the most recent restricted in distribution. Historically, (16 U.S.C. 1531 et seq.), for Holocarpha treatment for the genus (Keil 1993). four major factors contributed to macradenia (Santa Cruz tarplant). It is Holocarpha macradenia, an aromatic changes in the distribution and threatened by alteration and destruction annual herb in the aster (Asteraceae) composition of coastal prairiesÐthe of habitat due to historical and ongoing family, is one of only four species of introduction of highly competitive, non- urban and commercial development, Holocarpha, all of which are restricted native species; an increase in grazing habitat alteration due to cattle grazing, to California. The genus name is derived pressures; the elimination of annual limited success of seed transplant from the Greek holos for whole and fires; and cultivation (Heady et al.1988). populations, and competition from non- karphos for chaff, referring to the scales Santa Cruz tarplant is most frequently native plants. This proposed rule, if found among the florets on the associated with grasses; non-native made final, would extend the Act's receptacle (the structure that supports grasses include wild oats (Avena fatua), protection to this plant. The Service the florets in the daisy-like flower head). Mediterranean barley (Hordeum seeks data and comments from the The plant is rigid with lateral branches hystrix), and bromes (Bromus sp.). public on this proposed rule. that arise to the height of the main stem Native associates include needlegrass DATES: Comments from all interested which is 1 to 5 decimeters (dm) (4 to 20 (Nassela sp.), California oatgrass parties must be received by May 29, inches (in)) tall. The lower leaves are (Danthonia californica), and herbaceous 1998. Public hearing requests must be broadly linear and up to 12 centimeters species, including other tarplants received by May 14, 1998. (cm) (5 in) long; the upper leaves are (Hemizonia sp.). At some locations, the ADDRESSES: Comments and materials smaller, with rolled back margins, and plant is found with species of concern, concerning this proposal should be sent are truncated by a distinctive craterform including Gairdner's yampah Federal Register / Vol. 63, No. 60 / Monday, March 30, 1998 / Proposed Rules 15143 (Perideridia gairdneri), San Francisco scattered from Watsonville Airport to within the context of section 4(c)(2) popcorn flower (Plagiobothrys diffusus), Hall Road, eight kilometers (km) (five (now section 4(b)(3)) of the Act and of Santa Cruz clover (Trifolium miles (mi)) to the south-southeast. The the Service's intention thereby to review buckwestiorum), and the Ohlone tiger names of the six populations are given the status of the plant taxa named beetle (Cicindela ohlone) (California here, followed by the population size therein. On June 16, 1976, the Service Natural Diversity Data Base (CNDDB) and (in parentheses) the year of the most published a proposed rule in the 1997). recent surveyÐWatsonville Airport, Federal Register (41 FR 24523) to Historically, Holocarpha macradenia 240,000 (1994); Harkins Slough, 15,000 determine approximately 1,700 vascular was known from ``low dry fields about (1993); Apple Hill, 700 (1995); Struve plant species to be endangered species San Francisco Bay'' (Jepson 1925). Slough, 1 (1994); Spring Hills Golf pursuant to section 4 of the Act. Around the San Francisco Bay, Course, 4,000 (1990); Porter Ranch, Holocarpha macradenia was included herbarium collections were made from 3,200 (1993). in the June 16, 1976 Federal Register Tamalipas in Marin County in 1934; The other six extant populations of document. from near Berkeley, Oakland, and San Holocarpha macradenia are a result of In 1978, amendments to the Act Lorenzo in Alameda County as early as experimental seed transplants in required that all proposals over two 1894; and from Pinole in Contra Costa Wildcat Regional Park in the east San years old be withdrawn. A 1-year grace County (CNDDB 1997, Specimen Francisco Bay area. The names of the six period was given to those proposals Management System for California populations are given here, followed by already more than 2 years old. Herbaria (SMASCH) 1997). All of the the population size; surveys were most Subsequently, on December 10, 1979, native San Francisco Bay area recently completed in 1997ÐBig the Service published a notice (44 FR populations have been extirpated; the Belgum, 148; Big Belgum West, 51; 70796) of the withdrawal of the portion last remaining native population, Upper Belgum, 22; Mezue, 5,000'7,000; of the June 16, 1976, proposal that had known as the Pinole Vista population, Fowler, 22; Upper Havey, 17 (Olsen et not been made final, along with four consisting of 10,000 plants, was al. 1997). other proposals that had expired. The eliminated in 1993 by a commercial Holocarpha macradenia is threatened Service published an updated notice of development (California Department of primarily by historic and current habitat review for plants on December 15, 1980 Fish and Game (CDFG) 1997). alteration and destruction caused by (45 FR 82480). This notice included By 1959, Munz (1959) also noted it residential development. Destruction of Holocarpha macradenia as a category 1 from Santa Cruz County, but added that habitat may also result from recreational candidate (species for which data in the the plant was possibly extinct. However, development, airport expansion, and Service's possession was sufficient to numerous collections were made from agriculture. Even where occupied support proposals for listing). the Monterey Bay area in Santa Cruz habitat has been set aside in preserves, On February 15, 1983, the Service County in the late 1950s and early conservation easements, and open published a notice (48 FR 6752) of its 1960s. In 1966 and 1969, Hoover made spaces, the plant suffers secondary prior finding that the listing of the first collections in northern impacts from
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