152 Wyoming Experiment Station. 



Gentiana Oregana^ Engelm. Gray, Syn. Fl. ii, pt. i, 122 (1886). 



Infrequent; in a mountain valley, at 8,000 ft.; Cummins, July, 

 29, 189.5 (No. 1527). 

 Gentiana Parryi, Engelm. Trans. St. Louis Acad, ii, 218, t. 10. 



Wet, subalpine valleys. 



Cummins, July 29, 1895 (No. 1526); Bald Mountain, August 17, 

 1892. 

 Gentiana serrata holopetala, Gray, Bot. Cal. i, 481 (1876). 



Under this name I have two quite distinct forms, neither of which 

 is typical, but lacking saUent characters enough to separate them. 

 The one is small and simple stemmed, the other freely branched 

 from the base. Both with unusually large showy flowers conspic- 

 uously fringed. Remarkably abundant in high, wet valleys. 



Union Pass, August 10, 1894 (No. 865); Cummins, July 30, 

 1895 (No. 15.39); Centennial Valley, August 17, 1895 (No. 1725); 

 La Plata, August 21, 1895 (No. 1766). 



Gentiana tenella, Rottb. Act. Haftn. x, 436, t. 2. 

 Rare; Cummins, July 27, 1895 (No. 1518). 



Pleurogyne rotata, Griseb. Gent. 309 (1839). 



Very rare ; on the hummocks in a swampy meadow, Centennial 

 Valley, August 18, 1895 (No. 1701). 



Swertia perennis, L. Sp. PI. i, 22(5 (1753). 



In subalpine meadow swamps ; frequent. 



Union Pass, August 13, 1894 (No. 988); Centennial Hills, 

 August 20, 1895 (No. 1742), 



Frasera speciosa, Dougl. Hook, Fl. Bor. Am. ii, 66 (1838). 



Bv reason of its size, a conspicuous and characteristic object 

 both on the timbered and denuded mountain slopes. 



Wind River Mountains, August 12. 1894 (No. 935); Laramie 

 Peak, August 6, 1895 (No. 1609). 



POLEMONIACE^. 



Phlox bryoides, Nutt. Journ. Acad. Phila. II. i, 153 (1848). 



This is very abundant on rather naked limestone ridges where 

 they crop out on the Laramie Plains and in the foothills. May 25, 

 1894 (No. 67) ; June 7, 1895 (No. 1280). 



