SUPPLEMENT TO THE FLORA OF MONTANA. 73 



this confusion as to A. miser, it seems best to describe our plant as 

 new, until the identity of A. miser, Dougl. be determined. 



Sky High, Union ville, 6000 ft., July 10, 1898, E. N. Brandegee. A 

 form collected by F. L. Scribner, Shield's River, Mont., June 6, 1883, 

 No. 27, and distributed as A. panciflonis, Hook, seems intermediate 

 between this and A. vcxilliflexus, Sheld. 



Astragalus arietinus, Jones, Proc., Calif. Acad. II. 5:653. See 

 A. iodanthus below. 



Astragalus atropubescens, Coult. & Fish., Bot. Gaz. 18: 30. 

 "Deer Lodge, June, 1892, F. D. Kelsey." 



Astragalus decumbens, Gray. In dry open places, frequent. 

 Bozeman, June 18, 1900; Kalispell, July 21, 1900; St. Joe Cr., En- 

 nis. June 18, 1899, W. W. Jones; Columbia Falls, July 4, 1894, R. S. 

 Williams, 1003. 



Astragalus divergens, n. sp. 



Caespitose from a perennial, woody, deeply penetrating caudex, 

 10-15 cm. high, somewhat caulescent with short, divergent branches 

 terminating in long (5-10 cm.) naked peduncles twice as long as the 

 basal leaves ; sericeous pubescent throughout with short appressed 

 hairs: leaves pinnate, 9-13 foliate, 3-5 cm. long with broadly deltoid- 

 ovate stipules or the upper lanceolate, more or less connate and the 

 lower scarious ; leaflets elliptical to linear-oblong and acute, sessile 

 or nearly so, 4-6 x 1-2 mm.: raceme aggregate, 6-12 flowered; bracts 

 linear, about equaling the pedicels: flowers 8 mm. long; calyx cam- 

 panulate, dark pubescent, teeth linear-lanceolate, about half as long 

 as the tube; standard purple (blue in drying) or white and purple- 

 lined, emarginate, about a third longer than the keel, the latter with 

 an attenuate, inflexed and deeply colored tip; wings white: mature 

 legume 15 mm. long, 2 mm. wide, straight and nearly terete, i-celled, 

 coriaceous, stipe at maturity about equaling the calyx. 



Nearest A. decumbens, Gray to which it has usually been referred, 

 but differs from that species in its more caespitose, subacaulescent 

 habit, wider and shorter leaves, subcapitate inflorescence, smaller 

 purple or purplish flowers and nearly terete, stipitate pod. The true 

 A. decumbens, Gray is a strictly caulescent and much larger plant, 

 with longer and narrower leaves, flowers about twice as large and 

 scattered in a lax raceme and with longer, compressed, sessile fruit. 

 In habit and situation it closely resembles A. cacspitosns, Gray and 

 A. simplicifolius. Gray, with which it was found on high dry grav- 

 elly uplands near Big Coulee creek, about 30 miles northeast of Big 



