SUPPLEMENT TO THE FLORA OF MONTANA. 5 



Drapa alpina, L. Mountain sides, Midvale, July 12, 1903, L. M. 

 Umbach, 312. A large (15 cm. high) subcaulescent form near 

 D. hirta, L. 



Draba borealis, DC. Specimens collected by R. S. Williams at 

 St. Mary's Lake, July 4, 1897, are densely csespitose and appear to> 

 belong here rather than with D. incana, DC. 



Draba Breweri, Wats. Dry rocks; subalpine. Horsefly Pass, 

 Crazy Mts., 8200 ft., July 20, 1902; St. Mary's Lake, July 4, i897 L 

 R. S. Williams. 



Draba cana, Rydberg, Bull. Torr. Bot. Club, 29:241. Most 

 American forms of D. incana, L., are split off under this name; dis- 

 tinguished by its more narrow, pubescent pods. 



Draba Fladnizensis, Wulf. The following seems best placed 

 here: Divide Mt., Teton Co., July 1 6, 1897, R. S. Williams. 



Draba oligosperma microcarpa, n. var. 



Differs from oligosperma in its smaller (2 mm. long, instead of 3-4 

 mm.), more orbicular and often more pubescent pods and smaller 

 flowers, and from D. andina, Nelson, in its smaller pods, longer (4-6 

 mm.) and narrower leaves and racemose inflorescence. One of 

 the confluent glacialis group to which it is desirable to call attention. 



Black Butte, Tobacco Root. Range, 10,000 ft., Aug. n, 1902; 

 Dewey, June 24, 1902; Horsefly Pass, Crazy Mts., 8200 ft., July 20, 

 1902. 



Draba saximontana, A. Nelson. "Monida, Madison Co., June 

 16, 1899, A. & E. Nelson." 



*Eruca sativa, Lam. Resembles Brassica alba, Boiss. Our speci- 

 mens appear to be 2-3 feet high and nearly glabrous, but the fruit 

 is glabrous and wider (6 mm.) than is normal with the species. Not 

 before reported as a weed in America. .Collected in the vicinity of 

 Kalispell, Sept. 9, 1898, by Dr. E. V. Wilcox. 



*Hesperis matronalis, L. Occasionally escaped from ornamen- 

 tal cultivation. Bozeman, 1891, W. T. Shaw; i< 



Lepidium pubicarpum, A. Nelson, Bot. Gaz. 30:189. Distin- 

 guished from L. apctalum, W r illd. by its much lower, branching habit 

 and by being puberulent throughout, even to the pods. 



Dwelle's, Upper Madison River, July 30, 1899, A - & E - Nelson; 

 Bozeman, July 2, 1898. 



