FLORA OF THE YELLOWSTONE NATIONAL PARK. 57 



Limosella aquatica, L. 



Muddy shore of ponds. Turbid lake, 7900 ft. alt. ; Ponds at outlet of 

 Yellowstone Lake. 



Synthyris rubra, Benth. 



Open slopes from 6500-9000 ft. alt. Common. 



Veronica Anagallis, L. 



Heart Lake (Coulter). 



Veronica Americana, Schwein. 



Bogs and wet places, rather common up to 8000 ft. alt. ; Indian Creek, 

 8000 ft. alt.; Mammoth Hot Springs, 6000 ft. alt. 



Veronica scutellata, L. 



"With the preceding. East Fork, 7000 ft. alt.; Yellowstone Lake 

 (Adams). 



Veronica alpina, L. 



Wet meadows and slopes from 7500 ft. alt. to alpine. Common. 



Veronica serpyllifolia, L. 



Wet meadows and muddy shores of ponds up to 8500 ft. alt. 

 Frequent. 



Veronica peregrina, L. 



With the preceding, but less common. Yellowstone Lake at outlet. 



Castilleia minor, Gray. 



Mammoth Hot Springs, 6200 ft. alt, ; Upper Geyser Basin, 7300 ft. alt.; 

 Mud Springs (Adams). Local. 



Castilleia parviflora, Bong. 



Bogs and meadows up to 8000 ft. alt. Frequent. Replaced at higher 

 elevations by G. miniata. 



Castilleia miniata, Dougl. 



Bogs, wet meadows and slopes from 7000 to 9500 ft. alt. ; Extremely 

 common above 8500 ft. alt. over subalpine meadows and slopes. Flowers 

 all shades of red, scarlet, crimson, cream color and white. 



Castilleia pallida, Kunth., var. septentrionalis, Gray. 

 Rather common on subalpine slopes. 



Castilleia pallida, Kunth., var. occidentalis, Gray. 



High alpine summits. North Fork of the Stinkingwater, 10,300 ft. 

 alt. 



