l8o MEMOIRS OF THE NEW YORK BOTAXICAL GARDEN. 



* Camelina microcarpa Andz. ; DC. Syst. 2: 517 [111. Fl. 3: 515] ,- 



Caincliiia sylvcstn's W^Wr. Sched. Crit. 347 [Syn. Fl. i^ : 468]. 



Like the preceding, but more or less hirsute and with somewhat 

 smaller pods. Also an introduced species. At the station cited 

 below it had thoroughly established itself. 



Montana; Pony, July 6, 1897, Rydberg d- Bcsscy, 4i'/2. 



* Draba micrantha Nutt. : Torr. & Gray, Fl. N. Km. 1 : 109 ; Draba 



Caroliniana micrantha Gray, Man. Ed. 5, 72 [Syn. Fl. i' : 106; 



111. Fl. 2: 141]. 



An annual, with entire obovate leaves, minute flowers, and oblong 

 hispid pods. It grows on dry hills in the plain and prairie region. 



Montana: Great Falls, 1885, F. W. Anderson^ 2j ; Helena, 

 1883, Canbv, 2j. 



Draba nemorosa L. Sp. PI. 643 [Syn. Fl. i' : 107 ; Man. R. M. 17 ; 



111. Fl. 2: 143]. 



Common on hillsides, at an altitude of 1500—2500 m. 



Montana: Helena, 1890 and 1892, F. D. Kclscy ; Bridger Mts.,. 

 June II, 1897, Rydberg & Bessey, 4192: Pon}-, July 6, 4-igi ; Graf- 

 ton, 1892, R. S. Williams, 11: Bozeman, 1892, IV. T. Shaw; 

 Bozeman, 1883, Scribner, Sii. 



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

 Rvdbcrg d- Bessey, 41 go; Swan Lake, 1885, Tz.-eedy, j6j : 1888, 

 I)r. Chas. //. //all. 



Draba stenoloba Ledeb. Fl. Ross, i : 154 [Syn. Fl. i' : 107 : Man. 



R. M. 17; Bot. Cal. i: 28]. 



Rare, growing in exposed situations, at an altitude of 2500-3000 m. 



Montana: Grizzly Creek, 1887, Tiveedy, J4. 



Yellowstone Park: East De Lac3''s Creek, Aug. 10, 1897, 

 Rydberg d: Bessey, 41^0. 



Draba crassifolia Grab. Edin. New Phil.Journ. 1829 : 182 [Syn. Fl. 



l' : 108 ; Man. R. M. 17 : Bot. Cal. i : 28]. 



Among rocks on the mountain top, at an altitude of about 3000 m. 



Montana: Old Hollowtop, Pony Mts., July 9, 1897, Rydberg dr 

 Bessey, 4i8g; Stillwater Caiion, 1887, Tzveedy, j2. 



Yellowstone Park : 1884, Tiiredy. 



Draba nivalis Liljb. Vet. Akad. Handl. 1793 : 208 [111. Fl. 2 : 142 ; 

 Syn. Fl. i' : 109] ; Draba stellata nivalis Regel, Bull. Soc. Nat. 

 Mosc. 34-: 192 [Man. R. M. 16]. 



