58 FLORA OP THE YELLOWSTONE NATIONAL PARK. 



Orthocarpus pallescens, Gray. 



Rather dry meadows, 6000-8000 ft. alt. Common. 



Orthocarpus luteus, Nutt. 



Mammoth Hot Springs, 0200 ft. alt. ; Hot Springs, Yellowstone Lake ; 

 Yellowstone Lake (Adams). 



Orthocarpus pilosus, Wats. 



Wet meadows. Blacktail Deer Creek, 7400 ft. alt. ; Slough Creek, 6600 

 ft. alt. 



Pedicularis Groenlandica, Retz. 



Common throughout in bogs from 7000-9000 ft. alt. 



Pedicularis racemosa, Dougl. 



Open pine woods. East Pelican Creek, 8600 ft. alt. ; Saddle Mt., 8600 

 ft. alt.; Indian Creek, 8000 ft. alt.; Yellowstone and Shoshone Lakes 

 (Coulter). 



Pedicularis Parryi, Gray. 



" Pine woods at foot of Yellowstone Lake " (Parry). 



Pedicularis bracteosa, Benth. 



Border of woods generally with P. racemosa. 



Pedicularis scopulorum, Gray. 



Swan Lake, 7400 ft. alt. Frequent on subalpine and alpine slopes. 



OROBANCHACEJE. 



Aphyllon fasciculatum, Gray. 



Soda Butte, 6800 ft. alt.; Hayden's Valley, 8000 ft. alt. On Artemisia. 



Aphyllon Ludovicianum, Gray. 



Sulphur Hills, Pelican Creek. Yellowstone Lake (Adams). 



LENTIBULARIACE^l. 



Utricularia vulgaris, L. 



Common in lake sloughs and sluggish streams. Lewis Lake, Heart 

 Lake, Broad Creek, 8200 ft. alt.; Head of Yellowstone Lake (Parry). 



LABIATE. 



Mentha Canadensis, L. 



Common throughout in wet places at low elevations. 



Mentha Canadensis, L., var. glabrata, Benth. 

 With the typical form. 



