34 UNIVERSITY OF MISSOURI STUDIES [l8a 



Amarella plebeja E. jucundus 



Pleurogyne fontana Gnaphalium palustre 



Allocarya scopulorum Artemisia biennis 



Mimulus puberulus Senecio triangularis 



Veronica Wormskjoldii S. admirabilis 



Elephantella Groenlandica S. cymbalarioides 



Erigeron minor Crepis denticulata 

 E. loncliophyllus 



c. Lacustres.* The montane lacustrine and marginal, 

 vegetation I saw only at Glacier lake. Besides some aquatic 

 grasses, notably Deschampsia caespitosa, there occur the float- 

 ing bur-reed, Sparganium angustifolium, the white water- 

 crowfoot, Batrachium flaccidum, and the aquatic mudwort, 

 Limosella aquatica. The yellow pond-lily, Nymphaea poly- 

 sepala, grows also in some of these high lakes. 



d. Arbustales. The arid brush slope vegetation consists 

 quite wholly of the true sage-brush, Artemisia tridentata. This 

 community is rare in the region, and I have seen it only be- 

 tween Glacier lake and Eldora near Bluebird mine. 



e. Pratenses. The montane meadow is truly a paradise 

 of flowers. It is not uncommon to see acre upon acre of 

 meadow glorious with purple and blue and red and yellow and 

 white and scarlet. Never have I seen flowers anywhere else 

 in such profusion nor with such gorgeous hues — monkshoods, 

 larkspurs, louseworts, milk-vetches, locoweeds, squawweeds, 

 death-camasses, grasses, rushes, sedges, and blue-eyed grasses. 

 The following species are typical : 



*For a detailed account of the vegetation of these high lakes, con- 

 sult the paper by Raraaley and Robbins on Redrock lake near Ward 

 (Univ. of Colo. Studies, 6. 133-168). 



