MONTANA AGRICULTURAL COLLEGE SCIENCE STUDIES. 



Trifolium Parryi, Gray. See T. Montancnsc before. 



*Trifolium procumbens, L. The hop clover is an occiu-.>n'il weed 

 in gardens. lio^r man, Oct. 7, 1903. Introduced with garden seed. 



*Vicia sativa, L. Introduced at Plains, Aug. 9, 1901. 



MALVACE^. 



: *Hibiscu3 Trionum, L. A weed occasionally introduced in 

 gardens. Bozeman, Sept. 26, 1901, Mrs. A. B. Carow. 



Malva rotundifolia, L. Not infrequent as a weed in waste 

 places. Plains, Aug. 7, 1901. 



Sidalcea campestris, Greene, Bull. Calif. Acad. 1 : 77. In moun- 

 tain meadows at Chisholm's Camp, head of Middle Cr., Gallatin Co,. 

 Aug., 1888, Peter Koch; same locality July 31, 1902. This is a rare 

 species of the Pacific Coast west of the Cascades and its occurrence 

 here in great abundance in an isolated mountain park is remarkable. 



VIOLACE^:. 



Viola arenaria, DC. ; V . canina puberula, Wats. ; V . uwnticola, 

 Rydberg, Flora, 264. Small forms with characteristic incised stip- 

 ules not rare. 



Rocky Canon, Bozeman, May 26, 1900; Philipsburg, May 20, 1903, 

 G. T. Bramble. 



Viola aurea, Kellogg, Proc. Calif. Acad. 2: 185; V. Thorii, A. 

 iSielson, Bot. Gaz. 30: 193. Very distinct from V. praemorsa, Dougl. 

 with which it has been confused and its occurrence at this extreme 

 locality has led t6 its being regarded as a new species. 



Bridger Mts., Baldy, 8000 ft., June 26, 1899, in limestone "breaks" 

 near the "saddle" ; good typical specimens ; same range farther north, 

 June i, 1901, E. J. S. Moore. See V. praemorsa below. 



Viola monticola, Rydberg, Flora, 264. The characters separating 

 this from V. arenaria, DC. will not hold with our specimens, though 

 the stipules are often entire. 



Viola praemorsa, Dougl. ; V. rallicola, A. Nelson, Bull. Torr. Bot. 

 Club, 26: 128; Rydberg, Flora, 262. The redescription is doubtless 

 due to the confounding in most books and herbaria of V. praemorsa, 

 Dougl. with V. aurca, Kell. The former, as figured by Lindley 

 {Bot. Reg. t. 1254), is clearly our common yellow spring violet here; 

 the leaves are identical and the premorse root is characteristic, but 



