I02 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 



Montana: Spanish Basin, 1896, Flodman^ Jji-' Gallatin Co., 

 Mrs. Aldcrson; Madison Co., 1886, Tweedy, 1212; Tiger Butte, 

 1886, R. S. Williams, J22 : Jefferson City, 1883, Scribner, 2^2. 



Yellowstone Park : 1885, Tzvcedy, jjoy. 



TRILLIACEAE. 

 * Trillium obovatum Pursh, Fl. Am. Sept. 245; Trilliiun ovatum 



Wats. Proc. Am. Acad. 14: 274, in part; not Pursh. 



Distinguished from T. ovatum Pursh by the obovMte white or rose- 

 colored petals ; the latter has oblanceolate acute and generally purplish 

 petals. Woods, up to an altitude of 2000 m. 



Montana: Bozeman, 1885, Tzceedy, jO^: Middle Creek, 1892, 

 W. T. Skazv: Deer Lodge Co., Miss Ware: Gallatin Co., Mrs. 

 Alderson ; Flathead River, 1883, Caiiby, jji ; Granite Caiion, Mis- 

 soula, 1880, Watsoji, 



Yellowstone Park : 1885, Tzveedy, jo^. 



IRIDACEAE. 

 Iris Missouriensis Xutt. Journ. Acad. Phila. 7: 58 [Man. R. M. 



344; 111. Fl. i: 449; Bot. Cal. 2: 140]. 



In valleys, up to an altitude of 2500 m. 



Montana: Spanish Basin, 1895, Flodman, Jj6 ; Bridger Mts., 

 June II, 1897, Rydberg <f- Besscy, 3884.; P^orks of the Madison, July 

 26, J 88 J ; Bozeman, 1885, Tzoeedv, ji i ; West Boulder, 1887, 72; 

 Helena, 1892, Kclsey ; Beaver Head Co., 1888, Tzuccdv, loj; Gal- 

 latin Co., Mrs. Alderson; Musselshell River, 1882, Can by ; ^ozq- 

 man, 1883, Canby, ji^: Shinberger's Canon, 1880, JTa/son. 



Yellowstone Park: 188;^, Alary Comfton. 

 Sisyrinchium angustifolium Mill. Gard. Diet. Ed. 7 [111. Fl. i : 



454] ; SisxrinciiiiDii mitcroiatiim Coult. Man. R. M. 345, in part; 



not Michx. ; Sisyrine/iittm aneeps Cav. Diss. 6: 345,/'/. igo,f. 2. 



[Man. R. M. 345, in part]. 



In meadows, up to an altitude of 2000 m. 



Montana: Park Co., 1889, Tweedy, Helena, 1890, Kelsey ; 

 Willow Creek, 1888, R. S. Williams, 276; Deer Lodge Co., Miss 

 Emma Ware; West Gallatin, 1883, Scribner, 2'ji ; Grasshopper 

 Valley, 1880, Watson; Bridger Mts., June 12, 1897, Rydberg- cC- 

 Bessey, j88S; Pony, July 8, j(?5'^,- Spanish Basin, June 26,j88j. 



Yellowstone Park: Mammoth Hot Springs, 1885, Tzceedy, 

 510. 



