First Report on the Flora of Wyoming. I I 5 



Cereus viridiflorus, Engelm. PI. Fendl. 50 (1849). 



Rare, seemingly confined to the east slopes ot the Laramie range. 

 Pole Creek, June 2, 1894 (No. 113). 

 Opuntia fragilis (?) Haw. Suppl. PI. Succ. 82 (1819). 



A few specimens from Fairbanks, on the Platte, are thought to 

 belong here. July 14, 1894 (No. 46.5). 

 Opuntia polyacantha platycarpa, (Engelm.) Coulter, Contrib. Natl. 

 Herb. (Ill) vii, 436 (1896). 



Probably several varieties of this species are found on our plains, 

 but no specimens are at hand except of this. On the dry, gravelly- 

 plains the species, in some form, is immensely abundant, forming 

 in places almost continuous beds. 



Table Mountain, June 2, 1894 (No. 115). 



UMBELLIFER^. 



Sanicula Marylandica, L. Sp. PI. 235 (1753). 



Rare in the parts of the state collected, but probably frequent in 

 the northeast. 



Laramie Peak, August 8, 1895 (No. 1607). 

 Musenium tenuifolium, Nutt. T. & G. Fl. N. A. i, 642 (1840). Ado- 

 rium temiifoliitm, (Nutt.) Kuntze. 



Usually reported as rare, but it is found in the greatest profusion 

 in the Laramie range, on rocky ridges. June 7, 1894 (No. 176); 

 Platte Hills, July 11, 1894 (No. 391). 

 Musenium trachyspermum, Nutt. 1. c 



Common on the Laramie plains, appearing very early. 

 Laramie, May 7, 1894 (No. 10); observed outside of Laramie 

 but not collected. 

 Bupleurum Americanum, C. & R. 



Seemingly quite rare ; a fine species. 

 Union Pass, August 14, 1894 (No. 893). 

 Bupleurum ranunculoides, L. Sp. PI. 237 (1753). 



Judging by place of collection, this may be denominated alpine. 

 Teton Peaks, August 21, 1894 (No. 972). 

 Harbouria trachypleura, C. & R. 



Frequent in fertile mountain valleys at 7,000-8,000 ft. 

 Table Mountain, June 2, 1894 (No. 160); Saw Mill Creek, May 

 25, 1895 (No. 1238). 



