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3 <br />• scopulorum). Gambel oak (Quercus gambelii) was a major shrub species, <br />~ ~ occurring with mountain mahogany (Cercocarpus montanus) and snowberry <br />(Symphoricarpos oreophilus). Numerous annual and perennial forbs and <br />grasses occurred as understory vegetation, including cinquefoil <br />(Potentilla concinna), Carex spp. side-oats grams (Bouteloua <br />curtipendula), and June-grass (KOeleria cristata). The soils occur- <br />ring in this type were alight brown sandy loam. Ponderosa pine, <br />Douglas fir and Gambel oak were showing good reproduction. Understory <br />was sparse under the older conifers where there was dense litter. <br />The Ponderosa pine-oak vegetation type occurred on a north- <br />facing slope of about 27o with an elevation of 7500 ft. It was charac- <br />terized by pure stands of Ponderosa pine (Pinus ponderosa) interspersed <br />with patches of Gambel oak ( uercus gambelii). Other overstory spe- <br />• ` , ties were pinyon pine (Pinus edulis) and Rocky Mountain juniper <br />(Juniperus scopularum). Other shrub species were snowberry <br />(Symphoricarpos oreophilus) and mountain mahogany (Cercocarpus <br />montanus). Understory species consisted of annual and perennial <br />forbs and grasses such as Carex sp., Parry oatgrass (Oanthonia parryi), <br />side-oats grams (Bouteloua curtipendula), blue grams (Bouteloua <br />gracilis), cinquefoil (Potentilla cor,cinna), star gentian (Sv+ertia <br />radiata), and Fendler meadovrrue (Tfialictrum fendleri). Openings in <br />the tree canopy were dominated by Gambel oak and occasional stands <br />of noun*_ain mahogany. Parity oat;rass .cn^.`~d tus;ncks in t4~ epen+njs. <br />The soil was a light bro:+n sandy loans. <br />The r+illov, carr vegetation type :+as located in a drainage of <br />the Purgatoire River at an elevation of approximately 7x00 ft. The <br />• .` dominant shruhs were narrowleaf ~.villovr (Salix exi ua) and Lloods rose <br />