64 FLORA OF THE YELLOWSTONE NATIONAL PARK. 



LILIACEJE. 



Allium Schcenoprasum, L. 



Bogs, from 6500 (Slough Creek) to 8500 ft. alt. Frequent. 



Allium brevistylum, Wats. 



With the preceding, but ranging higher, and generally common 

 throughout. Often in open moist woods. 



Allium cernuum, Roth. 



Dry open places, up to 8000 ft. alt. Common. 



Allium stellatum, Eraser. 

 Mud Springs (Adams). 



Allium Geyeri, Wats. 



Rocky wet benches, East Fork, 6400 ft. alt. 



Allium Tolmiei, Baker. 



Rocky bare subalpine ridges. Bison Peak, 8500 ft. alt.; Mt. Wash- 

 burne, 9000 ft. alt. 



Smilacina stellata, Desf. 



Moist copses, up to 8000 ft. alt. Frequent. 



Fritillaria atropurpurea, Nutt. 



Wooded slopes, Mammoth Hot Springs, 6400 ft. alt. ; Grassy ridges 

 Sepulchre Mountain, 8000 ft. alt. Yellowstone Lake (Adams). Rather 

 rare. 



Fritillaria pudioa, Spreng. 



Sepulchre Mountain, 8500 ft. alt.; Mt. Washburne, 9000 ft. alt. 



Erythronium grandiflorum, Pursh. 

 Swan Lake, 7500 ft. alt. 



Lloydia serotina, Reichenb. 



Volcanic slides, East Fork, 8000 ft. alt. 



Calochortus Nuttallii, Torr. and Gray. 

 Yellowstone Lake (Adams). 



Calochortus eurycarpus, Wats. 



Yellowstone (Parry). Yellowstone Lake (Adams). 



Streptopus amplexifolius, DC. 



Woods, Pelican Creek, 8000 ft. alt. ; Upper Falls of the Yellowstone 

 (Adams). 



