First Report on the Flora of Wyoming. 173 



Cheyenne, August 11, 1891; Laramie Hills, July 9, 1894 

 (No. 41 (i). 

 Eriogonum annuum, Nutt. Trans. Am. Phil. Soc. (II) 5: 164 (1833-37). 



Infrequent in parts of state collected. 



Inyan Kara Divide, September 1, 1892 ; Willow Creek, July 20, 

 1894 (No. 566). 



Eriogonum brevicaule, Nutt. 



Immensely abundant throughout the state on clayey, gravelly 

 ridges and plains. 



Laramie Hills, July 8, 1894 (No. 303); Wind River, August 8, 

 1894 (No. 722); from several other locahties. 

 Eriogonum csespitosum, Nutt. Journ. Acad. Phil, vii, 50 (1834). 



Very rare; Union Pass, August 14, 1894 (No. 890). 

 Eriogonum cernuum, Nutt. Journ. Acad. Phil. (II) 1 : 162 (1848). 

 Widely distributed and abundant. 



Laramie Hills, July 7, 1894 (No. 363); Wind River, August 8, 

 1894 (No. 726). 

 Eriogonum chrysocephalum, Gray, Proc. Am. Acad, .xi, 101. 

 Rare ; possibly confined to the Pacific Slope. 

 Bacon Creek, August 15, 1894 (No. 903). 



Eriogonum flavum, Nutt., Fras. Cat. (1813). 



Common on hillsides in the Laramie and Medicine Bow ranges. 

 Laramie Hills, July 8, 1894 (No. 415); Cummins, July 27, 1895 

 (No. 1443); a very large form with compound umbels from Laramie 

 Peak, August 5, 1895 (No. 1572). 



Eriogonum flavum crassifolium, Benth. 



Frequent in the Laramie foothills. Name communicated by Dr. 

 Robinson ; citation not at hand. 



Laramie Hills June 6, 1894 (No. 186). 

 Eriogonum heracleoides, Nutt. Journ. Acad. Phila. vii, 49 (1834). 



Infrequent ; our specimens are not typical but they undoubtedly 

 must be placed here. 



Wallace Creek, July 29, 1894 (No. 677). 



Eriogonum microthecum, Nutt. Journ. Acad. Phila. (II) 1 : 162 (1848). 

 Both frequent and abundant. 



Laramie at various times (Nos. 329 and 1138); Sweetwater, Sep- 

 tember 12, 1894 (No. 1188). 



