98 Wyoming Experiment Station. 



Astragalus spatulatus, Sheld. Bull. Minn. Geol. (!^: Nat. Hist. Surv. 

 ix. 19 (1894). 



Very abundant both on the plains and in the foothills. 

 Laramie Hills, May 16, 1894 (No. 31); Centennial Valley, June 

 9, 1895 (No, 1301); also a white flowered variety from the latter 

 place. 

 Astragalus tenellus, Pursh, Fl. Am. Sept. 473 (1814). 

 Seemingly throughout the state, in dry, sandy soil. 

 Laramie, June 19, 1894 (No. 267); Dubois, August 9, 1894 (No. 

 751); Cummins, July 26, 1895 (No. 1432). 

 Astragalus. (For other numbers see appendix). 



Oxytropis deflexa, D C. Prodr. ii ,280. 



Infrequent, in mountain Meadows, at 7,000-8,000 ft.; Union 

 Pass, August 11, 1894 (No. 825); Laramie Peak, August 8, 1895 

 (No. 1530). 

 Oxytropis Lamberti, Pursh, Fl. Am. Sept. 740 (1814), Spiesia Latn- 

 berti. (Pursh) Kuntze. 



The typical form is not frequent. As far as my observation goes, 

 it is confined to the eastern part of the state. By the typical form 

 is meant the purple-flowered form described in our manuals under 

 this name. Table Mountain, July 1, 1895 (No. 1320). 

 Oxytropis Lamberti sericea, Nutt. T. & G. i, 339 (1838). Spiesia 

 Lamberti sericea, (Nutt!) Rydberg. 



Very rare; Laramie, 1893. Flowers violet. 



Oxytropis (Spiesia) Lamberti ochroleuca, n. var. 



Stout, grayish, with a close pubescence throughout; very many 

 short stems trom the large perennial root, each of which bears one 

 to several long scape-like peduncles; flowers yellowish-white with 

 sometimes a purple spot on the keel petals. 



This is the frequently mentioned ochroleucus flowered form of this 

 species, but it certainly, with us at least, forms a good and constant 

 variety, if not species. It can always be distinguished by its 

 stouter habit throughout, by the densely lanate scale-like stipules, 

 by the shorter but thicker spike as well as by the very numerous 

 and crowded stems and scapes. Exceedingly abundant; Pole 

 Creek, June 2, 1894 (No. 119); Laramie, June 9, 1895 (No. 1302). 

 Loco. 



