First Report on the Flora of Wyomiiig. 85 



Cleome lutea, Hook. Fl- Bor. Am. i, 70, t. 25. 



This seems to replace the preceding on the Wind Rivers and in 

 the north-west generally; in sandy soil. Big Wind River, August 

 5, 1894 (No. 701). 

 Polanisia trachysperma, T. & G. Fl. N. A. i, 669 (1840J. 



Widely distributed in the state but not very abundant; on sandy 

 banks. Laramie Plains July 10, 1894 (No. 333); and B. C. Buffum, 

 at Wheatland. 



VIOLACE^. 



Viola blanda, Willd. Hort. Berol. t, 24 (i8o6).» 



Quite rare, on mossy bank in the light spray of a little waterfall. 



Centennial Hills, June 9, 1895 (No. 1257). 

 Viola Canadensis, L. Sp. PI. 936 (i753)- 



Abundant in thickets along streams. 



Head of Pole Creek, May 25, 1894 (No. 44); Near Table Moun- 

 tain, July 2, 1895 (No. 1406). 

 Viola canina adunca, Gray, Proc. Am. Acad, viii, 377, 



Occurs less frequently than the following, leaves less crowded on 

 the rootstock. 



Pass Creek June 20, 1892, B. C. Buffum; Horse Creek, June 9, 



1894 (No. 209). 



Viola canina Muhlenbergii, Traut. Act. Hort. Petrop. v, 28. 

 Widely distributed, rather abundant and variable. 

 Pole Creek June 2, 1894 (No. 146); Centennial \'alley, June 9, 



1895 (No. 1284). 



Viola Nuttallii, Pursh, Fl. Am. i, 174 (18 14). 



The earhest and commonest Violet on the plains. 



Laramie, May 19, 1894 (No. 37); May 23 1895 (No. 1229). 

 Viola palmata cucullata, Gray, Bot. Gaz. xi, 254 (1886). 



Infrequent. Horse Creek, June 9, 1894 (No. 191). 



Viola palustris, L. Sp. PL ii, 934 (i753)- 



A beautiful little plant observed but once, on a boggy bank. 

 Pole Creek, June 2, 1894 (No. 140). 

 Viola prsemorsa, Dougl. Lindl. Bot. Reg. i, 1254. 



This must be very rare in the state and its occurrence here 

 extends its range considerably. Observed both in 1894 and in 

 1895, only at the head of Pole Creek, May, (Nos. 43 and 1215). 



