Rocky Mountain Ramrles. 161 



sepals and yellow petals. Occasionally one finds the A. elegin- 

 tula of Green in the Marshall Pass country though reported iron 

 quite a number of other points in Colorado by Rvdber:^. The 

 Aquilcgia brevistyla is a more prevailing type at higher altitudes 

 in the Wasatch Mountains, and one form or another occurs in 

 the north to the Canadian Rockies. 



Orchids are not common in the Rockies. Outside of the 

 species of Habenaria, there are comparatively few genera or 

 species anywhere. The most common species in Colorado and 

 northward and the one most frequently met with is the H. 

 hyperhorea, the H. dilatata is less frequent, while the H. unalas- 

 chensis is found in the Uintah and Wasatch Mountains north- 

 ward into British Columbia. The Epipaciis gigantea occurring 

 at lower altitudes frequently along irrigation ditches is not com- 

 mon in Colorado nor Utah, but it occurs northward to British 

 Columbia. The Goodyera or rattlesnake plantain {G. Menziesii) 

 is not common in the southern ranges, and I only observed it in 

 British Colum.bia where it is not infrequent in the spruce, pine, 

 and fir woods. Attention might be called in this connection 

 to the occurrence of yellow lady's slipper {Cypripedmm parvi- 

 florum) which the writer has seen in the mountains in the vicinity 

 of Palmer Lake and Manitou. The plant was perhaps never as 

 abundant, nor any of the other species, as formerly in Iowa, 

 Wisconsin, and Minnesota. Dr. Aven Nelson records another 

 species C. Knightae for the Medicine Bow Mountains. 



Rydberg, in his Flora of Colorado , lists twenty-three species 

 of orchids native to that state. Dr. Nelson lists only nineteen 

 for the Central Rocky Mountain states. After the most thorough 

 collecting by Prof. Crandall and other Colorado botanists, it is 

 doubtful whether many other species would be added to this 

 list. At least the ordinary collector will not see anywhere near 

 this number. 



One of the most interesting plants on the plains adjacent 

 to the Rockies is the wild pumpkin or gourd {Cuciirhita foetid- 

 issima) which is found in abundance in the vicinity of Colorado 

 Springs, Pueblo and in the Arkansas Valley to Canyon City, 

 and is not infrequent on the plains of western Nebraska. Though 

 its range is given as west to California, it certainly is not com- 

 mon along any of the ordinary routes of travel on the west slope 



