26 FLORA OF THE YELLOWSTONE NATIONAL PARK. 



Delphinium Menziesii, DC. 



Wet meadows. Mirror Lake Plateau, 9000 ft. alt. ; Soda Butte, 6900 

 ft. alt. Rather rare. 



Delphinium bicolor, Nutt. 



Dry benches at low elevations. Mammoth Hot Springs, 6200 ft. alt. ; 

 East Fork of the Yellowstone, COCO ft. alt. 



Delphinium scopulorum, Gray. 



Bogs and along mountain streams, 8000-9300 ft. alt. Sometimes 6 

 feet in height. Common. 



Aconitum Columbianum, Nutt. {A. nasutum, Hook). 



Rather common in bogs and along mountain streams. Indian Creek, 

 8000 feet ; East Pelican Creek, 8800 ft. alt. ; Yellowstone Lake 

 (Coulter, Adams). 



Actaea spicata, L., var. arguta, Torr. 



Damp woods. Pebble Creek, 8000 ft. alt ; Yellowstone Lake 

 (Adams). Rare. 



BERBERIDACEJE. 



Berberis repens, Lirull. 



Amethyst Creek, 6700 ft. alt. ; Sulphur Hills, 7700 ft. alt. ; Lower 

 Geyser Basin (Coulter). Frequent. 



NYMPHJEACEJE. 



Nuphar advena, Ait. 



Abundant in ponds and sluggish streams up to 8500 ft. alt. 



Nuphar polysepalum, Engelm. 



Ponds head of Gibbon River, 8000 ft. alt. Rare. 



FUMARIACE^. 



Corydalis aurea, Willd., var. occidentalis, Engelm. 



Soda Butte Creek, 8000 ft. alt. ; Yellowstone Lake (Coulter). 

 Rather rare. 



CRUCIFERJE. 



Draba crassifolia, Graham. 



Mt. Holmes, 9300 ft. alt. ; Mt. Washbume, 10,000 ft. alt. 



Draba alpina, L. 



Mt. Washbume, 9800 ft. alt. ; Stinkingwater Pass (Parry). 



Draba alpina, L., var. glacialis, Dickie. 



Mammoth Hot Springs, 7000 ft. alt. ; Sepulchre Mt., 8600 ft. alt. ; 

 Mt. Doane, 10,000 feet (Adams). 



