128 Wyoinittg Experiment Station. 



Carbon, June 18, 1894 (No. 256); Miss Lily Boyd; Laramie 

 Plains, June 20, 1895 (No. 1315). 

 Aster ptarmicoides, T. & G. FL N. A. ii, 160 (1841). 



Rare; typical specimens from Bald Mountain, August 16, 1892,. 

 B. C. Buffum. 

 Aster pulchellus, Eaton, Bot. King Exp. 143. 



This elegant alpine form occurs at least in the two principal 

 ranges in the northern part of the state. 



Bald Mountain, August 8, 1892, B. C. Buffum; Union Peak, 

 August 1:5, 1894 (No. 1016) 

 Aster salicifolius, Ait. Hort. Kew. iii, 203. 



From Jackson's Hole, near the base of the Teton Mountains, 

 August 21, 1S94 (No. 1065). 

 Aster tanacetifolius, H B K. Nov. Gen. & Sp. iv, 95 (1820). 



Frequent on the sandy plains of the Platte. Uva, July 10, 1894 

 (No. 443). Observed in many other places. 

 Aster xylorrhiza, T. & G. Fl. N. A. ii, 158 



This grows even more profusely than the above mentioned A. 

 Parryi, but prefers soil with less alkali. Sandy clay ridges on the 

 height of land between streams. 



Laramie Plains, June 20, 1895 (No. 1315). 



Erigeron acris, L. Sp. PI. 863 (1753). 



Infrequent and alpine ; Laramie Peak, August 7, 1895 (No. 1621).. 



Erigeron armerifolius, D C. Prodr. v, 291 (1836). 

 (Xiite frequent along stream banks. 



Head of Green River, August 14, 1894 (No. 908); Cummins, 

 July 29, 1895 (No. 1480). 

 Erigeron csespitosus, Nutt. Trans. Am. Phil. Soc. vii, 307 (1841). 

 Frequent on dry stony hillsides in the Laramie Mountains. 

 Blue Grass Creek, July 9, 1894 (No. 334); Cummins, July 30, 

 1895 (No. 149(;). 

 Erigeron Canadensis, L. Sp, PI. 863 (175.3). 



Sybille Creek, July 9, 1894 (No. 298); Whalen Canon, July 18, 

 1894 (No. 556). 

 Erigeron canus, Gray, Mem. Am. Acad, iv, 67 (1849). 



My specimens of this are a little scanty and over ripe, but I think 

 there is little doubt of the correctness of the determination. 

 Platte Canon, July 14. 1894 (No. 482). 



