94 



Teton Mountains. The Bechler River below Ouzel Falls leaves 

 its canyon in the plateau, and passes into the Bechler Meadows, 

 where it and its tributaries form the primary drainage system. 



The specimens were collected between Ouzel Falls and the 

 northwest side of the Bechler River, where, in the swampy 

 meadow of grasses and sedges, numerous individuals were in 

 flower. This is the only place in the Meadows where the species 

 was observed. 



Specimens are in the Yellowstone Park Herbarium at 

 Mammoth Hot Springs, in the Carnegie Museum Herbarium, 

 and in the Rocky Mountain Herbarium. The writer wishes to 

 thank the following institutions for information concerning 

 western localities: Missouri Botanical Garden, Gray Herbarium, 

 New York Botanical Garden, Rocky Mountain Herbarium, 

 United States National Herbarium, Herbarium of the Field 

 Museum of Natural History, Herbarium of the University of 

 California, and the Herbarium of the University of Washing- 

 ton. 



Pittsburgh, Pa. 



