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10 <br />produc*.ion value of 2.8 gms/m2. The remaining understory species • <br />had low and minor production values. The total mean production for <br />the pinyon-juniper understory 4;as 35.7 gms/m2. <br />Density measurements for shrubs, trees and saplings in the <br />pinyon-juniper site are given in Table 6. In the shrub category, <br />Artemisia frioida had a mean density of 2.4/m2. Quercus gambelii had <br />a mean density of 0.6/mz, and Xanthncephalum sarothrae had a mean den- <br />sity of 0.4/m2. In the tree category, Pinus edulis had a mean density <br />of 5.3/100m2 and ~lunioerus scooulorum had a mean density of 4.0/100m2. <br />Abies concolor, Pinus ponderosa, and Pseudotsuaa menziesii were minor <br />tree species, with mean densities of 0.3/100mz, 0.8/100m2 and 0/1m2, <br />respectively <br />Pseudotsuaa <br />with a value <br />densit;~ of 0 <br />of 0.3/100m2 <br />4.1, <br />Plo Pinus edulis saelinas were encountered, and <br />menziesii had the higher*_ density count of the saplings, <br />of 1.8/100m2. Juniner•us scooulorum saplings had a mean -. <br />.3/100in2, and Pious ponderosa saplings had a mean density <br />Total mean density for 100m2 was 12.5, and for lm2 was <br />Dominant species in the pinyon-juniper understory ~:~ere <br />Astracalus striatus, Astraealus flexuosus, and To4msendia eximia. In <br />general, fortis were dominant, and crasser were minor species. <br />Pinus edulis and. Juninerus scopulorum were dominant true species. <br />Based on density measurements, Artemisia frinida was the dominant <br />shrub. Pseudotsuaa menziesii had the largest occurrence of saplings, <br />although r,o mature trees of that species 4iere encountered. <br />The Allen Mine encompassed three separate vegetation types: <br />Ponderosa pine-Douglas fir-oak, Ponderosa pine-oak, and 4111164! carr-. <br />The mean cover values far the Ponderosa pine-Douglas fir-oak type <br />