96 MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



OLEACE^E. 



Fraxinus viridis, Michx. The green ash is common along the 

 lower Yellowstone River from the Big Horn River eastward and 

 down the Missouri from Hinsdale. Crow Agency, July 15, 1901; 

 Arden, July 15, 1900; Poplar, July 12, 1900. 



CONVOLVULACE/E. 



Cuscuta Epithymum, Murr. Parasitic on alfalfa; probably in- 

 troduced from Utah. Livingston, Aug. 8, 1898, and other localities. 



Cuscuta inflexa, Engelm. Parasitic on Sali.v and Glycyrrhiza. 

 lepidota along the banks of the Missouri. Poplar, July T2, 190,0 ; 

 Glasgow, July 17, 1900, on Salix; Great Falls, July 10, 190^. on G7y- 

 cyrrhisa lepidota. 



E volvulus argenteus, Pursh. Big Horn River near -Gustcr Sta- 

 tion, July 2, 1890; Billings, June 3*0, 1902. 



Ipomoea leptophylla, Torr. Big Horn River, near Custer Sta- 

 tion, Aug. 10, 1890. Dry hillsides, not infrequent there. 



HYDROPHYLLACE2E. 



Romanzoffia Sitchensis, Bongard. Mt. Henry, Teton Co., Aug. 

 15, 1897, R. S. Williams; Sperry Glacier, 8000 ft., Sept. -I, 1903, in 

 spray of falls; Stanton Lake, 7500 ft., Aug. 7, 1894, R. S. Williams, 



.032. 



BORRAGINACE^:. 



*Cynoglossum officinale, L. Big Timber, July, 1900, V. K. 

 Chesnut; July 13, 1901. A weed in waste places; infrequent. 



Hthotropium spathulatum, Rydberg, Bull. Torr. Pol. Club. 

 30:262. Separated from H. Curassaricitin, L., and includes all the 

 Montana specimens. 



Krinitzkia pustulata, n. n. ; Orcocarya of finis, Greene, not Krin- 

 it"*',a af finis. Gray. Resembles K. gloincnita. Gray, but easily distin- 

 guished by its larger size, its coarse hispid pubescence with promin- 

 ent pustulate-based hairs, its more spreading scorpoid racemes and 

 its narrower, tuberculate (not rugose) nutlets. A species of the 

 eastern plains, while K. gloincrata is more frequent in the mountains 

 ;md foothills. 



