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1 <br />' be e::pected. Occasionally relatively pure stands of Aspen occur, <br />especially on glacial moraines above and to the east of the site. <br />1 These stands do not seem to relate to increased moisture <br />' availability, but do occur on the more gravelly soil types (Map <br />unit 60. Exhibit I). <br />' It appears. both from the soil profiles and the pattern in <br />which the Aspen e;;ist, that the Aspen are a seral stage showing <br />' historic fire patterns for the area. because most of the Aspen <br />' stands are outside the permit boundary they were not further <br />investigated. <br />' The herbaceous understory layer consists mainly of <br />F::inni4;innick: (Arctoslaehylos uv_a=ursi) with mi>;ed grasses and <br />' (orbs. Dominant grass species are Arizona fescue (Festuca <br />ari=onica> followed closely by Mountain muhly (Muhenbergi.a <br />montana>. Other grasses not forming a major portion of the <br />' graminoid understory community are Idaho fescue (Festuca <br />' idahoensis), Spi4::e fescue (LeucoQoa kingii), and Junegrass <br />(k:oeleria cristata7. <br />' Grasses life Fo>;tail barley (Hordeum Zubatum), Fed three-awn <br />(Aristides longiseta), Mountain brome (Eromus marginatus), and <br />what appears to be Pearded wheatgrass (Agrogv_ron subsecundum) is <br />' notable in Aspen stands. <br />Forbs and graminoid-liV;e species common to the area and in <br />' the understory, though not in great abundance during the field <br />visits, are Car e:_ ro.ssii, and other Care;; species. Antennaria <br />' sEg. and Goldenrod (Sol.idago se.e•>• <br />' Shrubs dominating the understory, and then not at all common <br />(photo #1~) were Mountain sagebrush (Artemi.sia tri.dentata seP <br />' 27 <br />