First Report on the Flora of Wyoming. 123 



Bigelovia Douglasii pumilla, Gray, Syn. Fl. 140 (1886). 



Oi frequent occurrence and apparently throughout the state. 

 In 1894 successively at Garfield Peak. Bacon Creek, Boulder 

 Creek and at Laramie, (Nos. 616, 902, 1 121, 1197). 

 Bigelovia Douglasii Stenophylla, Gray, Proc. Am. Acad. viii. 644 

 (1S73). 



Certainly very rare ; noted but once. 

 Centennial Valley, August 26, 1895 (No. 1847). 



Bigelovia Douglasii tortifolia, Gray, 1. c 



These varieties run so closely together that it is difficult to speak 

 •with certainty regarding them. 



Poison Spider Creek, July 26, 1894 (No. 617). 



Bigelovia graveolens, Gray, 1. c 



Good specimens of this were obtained on the Platte. Common 

 m the canons and foothills near the river. 

 Platte River July 14, 1894 (No. 503). 

 Bigelovia graveolens albicaulis, Gray, 1. c. Chrysothamnus frigidjis, 

 Greene, Erythea, iii, 112 (1895). 



This is by far the most abundant form on the Laramie Plains, 

 where in places it forms an almost uninterrupted growth for miles 

 at a stretch. 



Its characteristics are so well marked that Prof. Greene is well 

 justified in raising it to specific rank. 



Laramie, August 29, 1891, B. C. Buffum ; E. L. Greene, August 

 l>i95 ; Bacon Creek, August 15, 1894 (No. 910). 

 Bigelovia graveolens glabrata, Gray, 1. c. 



This variety was observed only on the Pacific slope. 

 Bacon Creek, August 23, 1894 (No 966); Boulder Creek, August 

 26, (No. 1120). 

 Bigelovia Howardii, Gray, Proc. Am. Acad, viii, 641 (1873). 



Prof. Greene * notes this form as pecuhar to mountain parks of 

 Colorado. This was- secured in a similar location in Wyoming. 

 Centennial Valley, August 26, 1895 (No. 1846). 

 Bigelovia linifolia, (Greene). Chrysothamnus Ihiifoliiis, Greene. 



For this specimen also I am indebted to Prof. Greene; however, 

 on comparing with our material, I find one hsted as B. Douglasii 



*Erythea, iii, 114. 



