MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 157 



Yellowstone Park : Mammouth Hot Springs, 1885, Tweedy, 

 8q7; 1888, Dr. Chas. H. Hall. 



*Delphinium bicolor Montanense. 



Glandular-pilose throughout ; leaves thicker. 



Montana : Deer Lodge, 1888, F. W. Traphagen ; Beaver Head 

 Co., 1888, Tzc'eedy, JJ ; Hell Gate, Jo/iu Pearsall, 8ji ; Bozeman, 

 892, W. T. Skazc; Helena, 1891, Kelsey ; Butte, 1896, /. F. Kemp; 

 Spanish Basin, June 26, 1897, Rydherg & Bessey, 4076; Bridger 

 Mts.,June 14, ^o/j ; June 12,^077; Indian Creek, July 22, ^075. 



Yellowstone Park: Mammoth Hot Springs, 1889, F. W. 

 Dezvart. 



Delphinium Menziesii DC. Syst. i : 355 [Syn. Fl. i' : 50 ; Man. R. 



M. 11]. 



Exceedingly like the preceding, and I strongly doubt its being 

 really distinct. The onh' feature that seems to distinguish it, especially 

 from the variety, is the cluster of more or less tuberous roots, while 

 D. bicolor has a stout many-branched perennial root or stock. D. 

 Menziesii is a rarer plant, confined to the higher mountains, at an 

 altitude of 2500 m. or more. 



Montana : Lima, 1895, Rydberg, 264^; Beaver Head Co., 1888, 

 Tzueedy, Jja; Boulder River, Jefferson Co., 22; Grafton, 1892, R. 

 S. Williams, 2; Shields River, 1883, Scribuer, ja; Bannock, 1880, 

 Watson; Grasshopper Valley, Watson. 

 * Delphinium simplex Dougl. ; Hook. Fl. Bor. Am. i : 25 [Syn. Fl. 



I^ : 49 ; Bot. Cal. I : 10]. 



It somewhat resembles the two preceding, but is taller, often i m. 

 high, strict, and with a spiciform long virgate raceme. It is a rather 

 rare plant. 



Montana: Beaver Head Co., 1888, F. Tzveedy, 34. 



Yellowstone Park: 1885, Tweedy, 8g6 (?). 



Aconitum Columbianum Nutt. ; Torr. & Gray, Fl. N. Am. i : 34 



[Syn. Fl. i^: 52; Man. R. M. 11]; Aconitum Fisheri Wats. 



Bot. Cal. I : 12 ; not Reich. 



In moist ground, at an altitude of about 2500 m. 



Montana: Lo Lo Creek, 1880, Watson. 



Yellowstone Park: Buisquit Geyser Basin, Aug. 6, 1897, 

 Rydberg & Bessey, 40S0; East De Lacy's Creek, Aug. 10, 4081; 

 1884, Tzveedy; 1890,. F. D. Kelsey; Yellowstone Lake, 1871, 

 Hay den. 



