68 BOTANY. 



Var. MoETONi. (A. Mbrtoni, 'Nutt. Gray's Rev., I. c, 196.) Differing from 

 the last only in the somewhat pubescent ovary and legume ; compared, how- 

 ever, with Wisconsin specimens of Canadensis, the legumes are of somewhat 

 less diameter, more decidedly sulcate dorsally, and less crowded in the 

 matured spike. Collected by Nuttall on the head-waters of the Missouri and 

 Platte, and by Brewer in California. In the Truckee Valley and the 

 Toyabe and East Humboldt Mountains, Nevada, and Bear River Valley, 

 Utah; 5-8,000 feet altitude; July, August. (261.) 



AsTEAGALUs ADSUEGENS, Pall. Gray's Rev., I. c, 197. Perennial, 

 cinereous with minute appressed pubescence or glabrate ; stems rather 

 stout, 4-18' high, ascending or decumbent; stipules scarious, mostly united 

 at base; leaflets 10 pairs, 6-9" long, narrowly or linear-oblong; spike dense, 

 at length oblong or cylindrical ; flowers purplish, medium sized, ascending ; 

 calyx-tube rather long-campanulate, twice exceeding the setaceous teeth, 

 subvillous with light or dark hairs ; pod coriaceous, pubescent, sessile, 

 ascending, ovate-oblong (4-5" in length,) straight, usually triangular- 

 compressed, with a dorsal sulcus, and 2-celled by the intruded dorsal suture, 

 many-ovuled. — From Nebraska to Oregon and the Saskatchewan. Flowering 

 specimens, probably of this species, were collected by Stretch in Pleasant 

 Valley, Nevada. 



Astragalus htpoglottis, L. Gray's Rev., I. c, 197. Perennial, with 

 a rather loose pubescence or nearly glabrous ; stems 6'-2° long, slender, 

 diffusely procumbent or ascending ; stipules subfoliaceous and more or less 

 sheathing; leaflets 7-10 pairs, oblong, obtuse or retuse; heads rather many 

 flowered ; corolla violet i' long; legume as in the last, but ovate and triangular, 

 silky-villous, very shortly stipitate, and but 6-8-seeded.— From Southern 

 Colorado (Moro River, Fendler,) northward along the Rocky Mountains and 

 Red River Valley to the Arctic Circle and Alaska. In the East Humboldt 

 Mountains, Nevada, and in the Wahsatch and Uintas ; 6-8,000 feet altitude ; 

 June-September. (262.) 



AsTEAGALUS NuTTALLiANUs, DC. Graijs Rev., I. c, 199. Annual, 

 stems ascending or erect, 3-18' high, minutely pubescent ; leaflets 5-7 pairs, 

 elliptical or oblong, obtuse or retuse ; flowers few, subcapitate or sometimes 

 solitary, on slender peduncles, light purple, small (2" long,) the keel much 

 shorter than the banner, with the apex incurved ; legume coriaceous, linear, 

 Bubcompressed, incurved near the base, sulcate dorsally, 2-ceIled, many- 



