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1 vine, 3 succulents, 17( perennial grasses, 2 annual grasses, 31 perennial <br /> forbs, 16 annual and biennial forbs, and 1 moss. See Table 6. <br /> Eleven plant species or 11 percent of the flora are introduced from <br /> outside the geographic �gion. Halogeton, an introduced annual , is <br /> listed by Thornton et al (1974) as a prohibited noixous weed, especially <br /> difficult to control . .�is species is also known to be poisonous to <br /> livestock, especially s Jeep. Gilia Siiia jtenothyAja, an annual forb, <br /> is a new record for thol tate of Colorado (W. A. Weber, University of <br /> Colorado Museum, person I communication) . This collection is of interest <br /> because jC .tia .1tenoth ILhad been regarded as an endemic species of the <br /> Uinta Basin (Graham 19 ', Cronquist et al . 1972) . The collection in <br /> Coal Canyon establishes its presence outside the Uinta Basin. Although <br /> previously known from tie Uinta Basin, it is apparently not common even <br /> there. <br /> No selenium indicators were found on the site. <br /> 3.4 THREATENED OR ENDA14PERED PLANT SPECIES <br /> Of species officialAy listed by the U.S. Fish and Wildlife Service <br /> (USFWS 1980) as threate ed or endangered, only one, the hookless Uinta <br /> bas i n cactus P ediocactu 9, aucu j (a I so known as ScCenvcactuj g-taucuj) , <br /> has a known distributio , close to the study area. This cactus was not <br /> observed within any of he vegetation types on the permit area. Of <br /> species listed as currently under review (USFWS 1980) and with potential <br /> for occurrence in the s udy area, there are two, Wetherill milkvetch <br /> A,j.tnaga.tu,j wethe tiZ&4 #td c 11 f f dwe I I e r s c a n d I e s t i c k auptantha etata. <br /> Considering the ecologi'6 I requirements of these species, it is theo- <br /> retically possible that they could occur in the study area. However, the <br /> ecological inventory did not verify these species to be present. Likewise, <br /> none of the species lis ed by the Colorado Natural Heritage Inventory <br /> (1980) as "plant specie Iof special concern" have been observed in the <br /> study area. <br /> 3.5 SAMPLE CHARACTERIS CS AND ADEQUACY <br /> Table 7 provides da a on the adequacy of cover, production, and <br /> shrub density sampling, Ind on species diversity. A statistically <br /> adequate number of cove land shrub density samples were taken. Adequacy <br /> was not achieved for pr uction; however, the maximum number of samples <br /> (as agreed on by CMLR) s taken. <br /> 3.6 DATA TABLES AND OT R <br /> i TABULAR INFORMATION <br /> This section conta s all data tables and other tabular information <br /> as presented and descri d in previous sections except summary tables <br /> which appear in Section .0. <br /> -14- <br />