Io8 Wyoming Experiment Station. 



Parnassia palustris, L. Sp. PI. 273 (1753). 



Quite rare and not readily distinguished from the next except by 

 the cordate leaves. 



Bald Mountain, August 16, 1892, B. C. Buffum. 

 Parnassia parviflora, D C. Prodr. i, 320. 



Rather common on grassy stream banks almost in the water. 

 Fort Washakie, August 5, 1894 (No. 7-16). 

 Jamesia Americana, T. & G. Fl. i, 593 (1840). 



A very handsome shrub when in blossom. Rare; in rocky- 

 canons. 



From Saratoga by B. C. Buffum, June 1892; Table Mountain,. 

 July ], 1895 (No. 1418). 

 Ribes aureum, Pursh, Fl. 164 (1814). 



Common in the canons of the Platte, where the black fruited 

 form seems to predominate. Introduced in Laramie as an orna- 

 mental shrub. 



Fairbanks, July 18, 1894 (No. 571). Missouri or Flowering 

 Currant. 

 Ribes aureum chrysococcus, Rydberg, Fl. Neb. xxi, 71 (1895). 



Mr. Rydberg founds this variety upon the character of the fruit. 

 It is what has been called the yellow fruited form of the preceding. 

 Noted by Mr. Rydberg, it may again be stated that there is no dis- 

 cernible difference between the flowers and leaves of the two forms» 

 but the fruits are strikingly dififerent, and apparently the difference 

 is constant. The variety is very common in the Platte canons at 

 Fairbanks and produces large, finely flavored berries in abundance,, 

 which are gathered in large quantities for domestic use by the resi- 

 dents of the place. 



Fairbanks, July 18, 1894 (No. 571a). Yeliotu Currant. 

 Ribes cereum, Dougl. Trans. Hort. Sor. Lond. vii, 512 (1830). 



Exceedingly common on dry, rocky hillsides throughout the state. 

 Laramie Hills, May 16, 1894 (No. 30); May, 1895 (No. 1231). 

 Ribes divaricatum, Dougl. Trans, Hort. Soc. Lond. vii, 515 (1830). 



Presumably rare; Union Pass, Aug. 10, 1894 (No. 862). 

 Ribes divaricatum irrigum, Gray, Am. Naturalist, x, 273. 



Growing in great profusion in the copses bordering stream banks- 

 and producing an abundance of very acid but pleasantly flavored 

 fruit. 



