MEMOIRS OF THE NEW YORK BOTANICAL GARDEN. 1 79 



Lesquerella alpina (Nutt.) Wats. Proc. Am. Acad. 23: 251 [Syn. 



Fl. i' : 117] ; Vcsicaria alpina Nutt. ; Torr. cS: Gray, Fl. N. A. i : 



102 [Man. R. M. 25]. 



On dry sandy hills, at an altitude of 1500-2500 m. 



Montana: Lima, 1895, Rydberg, 2666; Melrose, 2667; Cotton- 

 wood Creek, 1896, Flodman, ^.gj ; Spanish Basin, June 23, 1897, 

 Rydberg & Bcsscy, ^lyo; Gallatin Co., 1888, Tzvccdy, 118 ; Lewis 

 & Clarke Co. ; Mrs. Mitth; Mr. Murphy ; Livingston, 1883, Scrib- 

 ner, 8m; Bannock City, 1880, Watson. 



* Lesquerella spathulata Rydberg, Cont. U. S. Nat. Herb. 3: 486 



[111. Fl. 2: 136]. 



Differs from the preceding in the broader leaves, the recurved 

 pedicels, the shorter st3'le and the less compressed pod. Li L. alpina 

 the pods are erect on straight pedicels. It is a species belonging to 

 the Great Plains, growing on very dry hills, scarcely exceeding 1500 

 m. in altitude. 



Montana: Great Falls, 1886, F. W. Anderson, sy ; 1891, R. S. 

 Williams, 6 ; Deer Lodge, 1891, R. D. Kclsey. 



Lesquerella argentea (Pursh) MacM. Met. Minn. 263 [111. Fl. 2: 

 137] ; jMyagrum argcntcum Pursh, Fl. Am. Sept. 434; Lesquer- 

 ella Ltidoviciana Wats. Proc. Am. Acad. 23: 252 [Syn. Fl. i^ : 

 118]. 

 A plant belonging to the Great Plains, growing on dry hills at an 



altitude of 1000-1500 m. 



Montana: Great Falls, 1885, R. S. Williams, _^. 



Bursa Bursa-pastoris (L.) Britton, Mem. Torr. Bot. Club, 5: 172 

 [111. Fl. 2: 139] ; TJilaspi Bursa-pastoris L. Sp. PL 647 ; Cap- 

 sella Bursa-pastoris Medic. Pfl. Gatt. i: 85 [Syn. Fl. i' : 130; 

 Man. R. M. 25 ; Bot. Cal. i : 44]. 

 Naturalized around dwellings. 

 Montana: Madison Co., Mrs. McNulty ; Helena, 1887, F. D. 



Kelsey. 



Camelina sativa (L.) Crantz, Stirp. Austr. i : 18 [111. Fl. 2: 139; 

 Syn. Fl. l' : 131; Man. R. M. 25]; Myagrum sativum L. Sp. 

 PL 641. 



Occasionally introduced. 

 Montana : Bozeman, 1888, F. Tzueedy ; Cottonwood Creek, 1892, 



W. T.S/iazv: Helena, i88g, F. B. /\elsey ; Bozeman, 1883, Canby, 



33- 



