1 82 Wyouiing Experiment Station. 



Habenaria obtusata, Richards. App. Frank. Journ. 750 (1823). 

 Very rare ; Cummins, July .30, 1895 (No. 1544). 



IRIDACE.E. 



Iris Missouriensis, Nutt. Journ. Acad. Phila. vii, 58 (1834). 



Frequent on creek and river bottoms. 



Laramie, June 18, 1894 (No. 260); Centennial Valley, June 9, 

 1895 (No. 1268). 

 Sisyrinchium Bermudiana, L. Sp. PI. 954 (1753). 



The specimens before me show the characters which were sup- 

 posed to separate 6". angiistifoliiis and S. mucronatinn, but the 

 length of the spathes and the breadth of the wings are far from con- 

 stant. It is well to unite them under this earlier name. 



Laramie, June 1894 (No. 239); Wind River, at Dubois, August 

 10, 1894 (No. 767); in various other places. 



LILIACE^. 



Streptopus amplexifolius, DC. Fl. Fran, iii, 174 (1805). 



In copses on mountain sides; Laramie Hills, June 28,1891; 

 Laramie Peak, Angust 6, 1895 (No. 1580). 

 Smilacina amplexicaulis, Nutt. Journ. Acad. Phil, vii, 58 (1834). 

 Wii^tiera amplexicaulis, (Nutt.) Greene. 



Very rare ; thus far only observed on Casper Mountain, July 26,. 

 1894 (No. 610). 

 Smilacina stellata, Desf. Ann. Mus. Paris, ix, 52 (1807). Va^nera 

 stellata, (L.) Greene. 



Frequent and abundant in the meadows bordering on all our 

 streams. 



Horse Creek, June 9, 1894 (No. 155); Platte River, July 24, 1894 

 (No. 632). 

 Yucca angustifolia, Pursh. Fl. Am. Sept. 227 (1814). Y. glatica, 

 Nutt. 



Frequent on sandy, gravelly hillsides. 

 Cummins, July 27, 1895 (No. 1460). Spanish Bayonet. 

 Leucocrinum montanum, Nutt, Gray, Ann. N. Y. Lye. iv, 110 (1837). 

 Very common on the plains and foothills. 



Laramie, May 15, 1894 (No. 1226); also from Table Mountain. 

 White Mountain Lily. 



