98 MEMOIRS OF THE NEW YORK BOTAXICAL GARDEN. 



Montana: Spanish Basin, 1896, Flodinan, j^j: Deer Lodge, 

 1888, F. IV. Traphagen; Madison Co., 1888, 7^. Tzcccdy, pp; 

 Helena, 1890, 7^. Z>. Kehey ; Bridger Mts., June 18, iSg^,Ryd- 

 hcrg- & Bessey, 3866; Hell Gixte, Jo/ni Pearsa/l, 802 : Lewis & 

 Clarke Co., Mrs. Mttth; Deer Lodge, 1882, W. T. S/iaiu ; Boze- 

 manPass, 1882, Tweedy: Great Falls, 1889, 7?. S. Willianis, 2^; 

 Helena, 1889, Kehey ; Bozeman Pass, 1883, Scribncr, 282; Head- 

 waters of the Missouri, Lczcis (type). 



Yellowstone Park: Sepulcher Mountain, 1885, 7zt'6'6'r/v, 508; 

 Mammoth Hot Springs, 1889, F. W. Dezvart; Yellowstone, 1873, 

 C. C. Parry, 267. 

 Erythronium grandiflorum Pursh ; Lindl. Bot. Reg. 1786 [Man. R. 



M. 352: Bot. Cal. 2: 170: Wats. Rev. 260]. 



In rich wet soil on the sides of the mountains, at an altitude of 

 1500-2500 m. 



Montana: Spanish Basin, 1896, F/odnia/i, j^6 and j^/ : Deer 

 Lodge, 1888, F. W. Traphagen; Bridger Mts., June 15 and 18, 1897, 

 Rydberg & Bessey, 386^, 3870 and 3871; Spanish Basin, July i, 

 3872; Grizzly Creek, 1887, Tzueedy, 70; Deer Lodge Co., Miss 

 Hohson; Gallatin Co., JSIiss Shipman; Clendenin, 1881, R. S. 

 Williams, 133; Anaconda, 1891, Kelscy : Bozeman Pass, 1883, 

 Scrihner, 283; Canbv, 323; Bald Mountain, Beaver Head Co.^ 

 1880, Watson. 



Yellowstone Park: Swan Lake, 1885, Tzceedy, 303; 1883, 

 Marx Compton. 



* Erythronium Hendersonii Wats. Proc. Km. Acad. 22 : 479. 



It is distinguished from the preceding by the light purple-tinged 

 bases of the perianth-segments and the short brownish anthers. It 

 grows in similar situations. 



Montana: Bridger Canon, 1892, W. T S/iazc. 



Yellowstone Park : 1888, Dr. Chas. H. Hall. 



* Calochortus apiculatus Baker, Journ. Linn. Soc. 14: 305 [Bot. 



Cal. 2: 174; Wats. Rev. 263]. 



Characterized by the straw-colored umbellate flowers, and the 

 winged capsules on reflexed pedicels. 



Prairies, up to an altitude of 2000 m. 



Montana: Clarke's Fork, 1882, Tweedy; Missoula Co., Mrs, 

 Re n n edy ; Western Montana, Jlfiss Fninia Ware; Columbia Falls, 

 1892, R. S. Williams, 633; Blackfoot and Jocko Rivers, 1883, 

 Canby, 323. 



