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Drainage from the mountain side above the quarry area had <br />produced a strongly up-and-down the slope type of linearity to the <br />• vegetation patterns. Demarcation lines between the communities <br />appear to be fairly sharp and closely follow ridgetops and drainage <br />courses. Some overlap of shrub communities to north slopes and <br />forest communities to southslopes does occur and probably follows <br />slight variations in soil depth and texture. On.some more rocky <br />south facing slopes Pinon Pine (Pious Edulis) trees occur in abundance <br />but generally do not achieve a full crown cover thereby presenting a <br />somewhat open forest that is not dense enough to be called a true <br />forest or open enough to be called a Savannah. The shrub component <br />is still dominant numerically and probably functionally as well, but <br />the trees do play a minor role in the communities. <br />On the whole, these two communities are ecologically <br />• fairly distinct but not quite as distinct as one would assume by <br />visual inspection from a distance. The visual dominance by *_rees <br />and by shrubs is not so clearly marked when total species composition <br />is considered. The presence of a reasonably high quantity of shrubs <br />in the forest is obscured by the trees themselves and is closely <br />matched, in an inverse manner, by the presence of scattered trees in <br />the shrub community. Nevertheless, the mixing of the components of <br />the communities is not deemed sufficient to warrant combining of the <br />communities into a single type with two sub-types. Understory <br />composition, for the most part is the best indicator, in this case, <br />of the distinctiveness of the environment and the communities. <br />The shrubland is heavily grassed with species similar to those <br />typically found on Paunsaugunt Series soils. The forest, by contrast, <br />LJ <br />P-J-2* <br />