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<br />' is also presented. Density date was collected by maturity class to determine the relative <br />die-off and regeneration in the reclaimed areas. The "mature" class includes all established <br />' individuals which were not true seedlings or were not deed. As can be seen from the data, a <br />significant amount of regeneration has occurred for rubber rabbitbrush (Chrvsothamnus nauseosus) <br />' and four-wing seltbush (Atriolex canesc ens). In the Riparian Reclaimed unit, both trees and <br />shrubs were included in the density measurements since the trees ere not yet truly in a mature <br />' tree class. <br /> Seedling density is reported as individual plot data end as summary date. Relative density and <br />' the average number of seedlings per square foot are presented in the summery report . Seedling <br /> density data was collected in the recently reclaimed unit to determine the success of <br />' revegetation activities. The mean number of perennial seedlings per square foot w as 1.9 (2.0 <br /> when annual/biennial species are included). Seedling density at this level would indicate a <br />' stand rating of good to excellent, pa rtieularly when the composition of the seedlings is <br />considered (Valentine, 1971). <br />' Literature Cited <br />Beetle, A.A. 1970. Recommended Plant Names. Univ. Yyo. Agr. Expt. Stn. Rea. Journal 31, <br />Laramie. <br />Nickerson, N.F., G.E. Brink, and C. Feddema. 1976. Principal Range Plants of the Central end <br />' Southern Rocky Mountains: Names and Symbols. USDA Forest Service Gen. Tech. Rapt. RM-20. <br />U.S. Soil Conservation Service (SCS). 1979. Common Plant Names list and Scientific Plant Names <br />' List. Exhibit 407.1 (e)(6), National Soils Handbook Part II, USDA, Washington, D.C. <br />Weber, Y.A. 1987. Colorado Flora: Yestern Slope. Colorado Associated Univ. Press, Boulder. <br />' Weber, Y.A. and B.L. Johnston. 1979. Natural History Inventory of Colorado. 1. Vascular Plants, <br />Lichens, and Bryophytes. 2nd Edition. University of Colorado Museum, Boulder. <br />Wittman, R.C., Y.A. Yebe r, and B.C. Johnston. 1988. Flora of Colorado Computer Generated <br />' Catalog. Draft Version, March 1988. University of Colorado Museum, Boulder. <br />Valentine, J.F. 1971. Range Development and Improvements. Brigham Toung University Press, <br />' Provo. <br />1 <br /> <br /> <br />4 <br />1 <br />