DRY GRASSLAND OF A MOUNTAIN PARK 



265 



show the great preponderance of northern plants. Only one 

 of the plants charted {Muhlenbergia gracilis) has a distinctly 

 southern extension. Nearly all range considerably farther to 

 the north; 28 extend into Canada, 21 reach in Colorado their 

 southernmost limit. In Table 4 statistics are given of the 



Fig. 6. Dry grassland in early August showing Campanula petiolata in bloom. 

 The sparseness of the vegetation and its low growth are apparent. 



entire 132 species of vascular plants recognized as belonging 

 to the dry grassland. The geographic distribution is taken from 

 Rydberg^* the altitudinal ranges determined chiefly by personal 

 observation. 



i^Rydberg. P. A., Flora of Colorado, Bull. 100, Colo. Agric. Exp. Sta. Ft. 

 Collins, 1906. 



THE PLANT WORLD, VOL. 19, NO. 



