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FEANCIS RAMALEY 



ance, except on close view, the clumps are exactly like those of 

 the Syniphoricarpos. The plant blossoms in mid July. 



Ribes inebrious, a common shrub of the foothills and montane 

 zone, is less frequently found in pure sand than the two already 

 mentioned but it does, at times, form similar appearing growths. 

 This "red currant" blossoms early and the berries are ripe in 

 midsummer. 



Chrysothamnus linifolius forms characteristic symmetrical 

 clumps of small size (fig. 3). This "rabbit brush" grows some- 



Fig. 3. Scattered undershrubs of Chrysothamnus linifolius in sandy soil; Clear 

 Creek Canyon, near Georgetown, Colorado. Wheat grass is invading the spaces 

 between the undershrubs. A mixed shrub growth which will be succeeded even- 

 tually by forest may be noted on the steep slope in the background. 



times by itself in loose sand, sometimes with grasses in more 

 stable soil. The plants die back part way in the winter. The 

 species blossoms very late in the season, generally in September. 

 Only a few of the shrubs of the community have conspicuous 

 flowers. Oreobatus, the thimble berry, has blossoms in June 

 resembling large white roses. Sericotheca with spiraea-like in- 

 florescences in late July is of striking appearance. The Chryso- 

 thamnus blossoms quite freely giving in autumn a greenish-yellow 

 color to areas where it is abundant. 



