MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. I99 



that of the last species, being decidedly turbinate. It grows in 

 meadows, at an altitude of 1500-2500 m. 



Montana: Beaver Head Co., 1888, F. Tzveedy, jp; F. D. 

 Kchey ; Spanish Basin, 1896, Flodman, ^26; Bridger Mts., June 

 12 and 17, 1897, Rydbcrg & Bessey, 4.^02 and 4304; Cedar Mts., July 

 16, 4303; Monarch, 1890, R. S. Williams, lyg; Nevada Creek, 



1883, Canby, iig; Bozeman and Jefferson City, 1883, Scribner, 

 32b; Highwood Mts. and Belt Park, 1889, R. S. Williams, ijg. 



Yellowstone Park: 1888, Dr. C/ias. H. Hall; Soda Butte, 

 1885, Tzveedy, 846. 



Mitella pentandra Hook. Bot. Mag. pi. 2^33 [Torr. & Gray, Fl. N. 



Am. I : 586; Man. R. M. 93 ; Bot. Cal. i : 200]. 



In springy or swampy places, especially in the woods, at an alti- 

 tude of 1500-2500 m. 



Montana: Park Co., 1887, 7^. Tzvccdy, 266; Melrose, 1895, 

 Rydbcrg, 26S4; Bozeman, 2683; Spanish Basin, 1896, Flodinan, 

 328 and 32^; Bridger Mts., 330; Old Hollowtop, Pony Mts., July 

 7, 1897, Rydbcrg & Bessey, 4316; Yogo, 1888, R. S. Williams, 

 730; Gallatin Co., 1886, Tzueedy, 1160; Deer Lodge, Miss Emma 

 Ware; Lake Plateau, 1897, P. Koch, 16 ; Prickly Pear Creek, 1883, 

 Scribncr, 31c. 



Yellowstone Park: East De Lacy's Creek, Aug. 10, 1897, 

 Rydbcrg (X: Bessey, 4313 ; 1885, Tzvccdy, 84"/. 

 Mitella trifida Graham, Edinb. New Phil. Journ. 1829: 185 [Torr. 



& Gray, Fl. N. Am. i : 587 ; Man. R. M. 93 ; Bot. Cal. i : 200]. 



Coulter describes the leaves of this species as being dentate, which 

 is erroneous. They are on the contrary rounded-crenate. The calyx 

 and corolla are both greenish white. It is a rather rare plant within 

 the region, but more common west of the Rockies. 



Yellowstone Park : 1873, C. C. Parry, 102; Mt. Washburn, 



1884, Tzvccdy, 242. 



* Mitella violacea Rydberg, Bull. Torr. Bot. Club, 24: 248. 



In habit and the form of the leaves, this species most resembles 

 M. pentandra. The leaves are broadly cordate, slightly 5-7-lobed 

 with rounded finely crenate lobes. It is easily distinguished from 

 M. pentandra by the smaller flowers which are tinged and veined 

 with violet, and by the petals which are oblanceolate, entire or 

 slightly 3-cleft. It is rather common in southern Montana, at an 

 altitude of about 2000 m., growing in wet meadows. 



