Inflati 115 



most the same as in A. simplicifolius, the banner oval and arched to 

 erect, the bulge behind less evident, white spot the same, sides little 

 reflexed. Calyx campanulate, about 1 mm. long, the triangular teeth 

 hardly as long. Peduncles shorter than the leaves, filiform, rarely 5 

 cm long. Leaves strict, not over 7 cm. long, with rigid ascending leaf- 

 lets and short petioles. Leaflets 2-5 mm. long, thick, 4-8 pairs, grooved, 

 sjiarp, sessile, the terminal one mostly not jointed to the green rachis, 

 and like it. Petioles persistent after the leaflets fall and rigid. Pedi- 

 cels 1-3 mm. long. Bracts small. Stipules conspicuously connate 

 throughout, hyaline. Stems an inch or so high, much branched, many 

 from the crown of the thick and erect root, with the stipules over- 

 nping to the tip of the stem. Growing in chiy soil on bare ridges of 

 the bad lands of western Wyoming north of the Uintas. Middle 

 Temperate life zone, along with Gutierrezia, Aplopappus acaulis, Cog- 

 wellia etc. 



66. Astragalus Cusickii Gray Proc. Am. Acad. 13 370 (1878). 

 Phaca Rydberg. Pods racemose, elliptical to obovate, nearly strpi^ht. 

 not sulcate, translucent and very thin and papery, with oily drops 

 within, red-nerved and stippled above, horizontal to pendulous, 3-4 ovn. 

 long, about 2-2.5 cm. wide, compressed at base, splitting with age from 

 tip to base and through the pedicel along the dorsal suture, also along 

 *iio ventral suture at tip and base, but not through the seed bear- 

 ing portion, tip very shortly triangular or deltoid and oblique, 1-4 mm. 

 long, cross section half-oval, shallow and very broadly sulcate ventral 

 ly. Stipe not longer that calyx and not jointed to it and so pod is per- 

 sistent even through the winter on dead stems. Flowers coarse, about 

 the same as A. stenophyllus, nearly horizontal, loosely spicate, rather 

 ff>w. 1-1.5 cm. long, white turning to cream-colored with age. Banner 

 fiddle-shaped by being much contracted about one third the way from 

 the base, oval, 1 cm. long, arched to 90 degrees 2-4 mm. beyond the 

 calyx teeth, erect part about 7 mm. long, a little hooded at tip, water- 

 I'Tied. with fleshy claw, with sides reflexed to 2 mm. widp in th'^ 

 middle only, with groove very deep and narrowed below and flattening 

 out above. Wings arched from little to 30 degrees, obliquely oblong-lan- 

 ceolate, 1-3 mm. longer than keel and 2 mm. shorter than banner, 

 nbrut 4 mm. wide below the kepl ti'^i and tapering down above concave 

 to keel, flaring beyond. Keel a little arched, about 4 mm long f blade), 

 abruptly rounded to nearly 90 degrees, yellow, with tip acute and 

 about 3 mm. high. Calyx tube a little oblique at base and with pedi- 

 cel inserted below the middle of the end. truncate, scarcely at all 

 compressed, white, straight, 3 mm. long, broadly campanulate, with 

 mouth oblique, with teeth rudimnntary and deltoid, one half mm. long. 

 Bracts minute and hyaline. Pedicels atout, short, some of them re- 

 Mexed. Peduncles subterminal. stout, long, green, sulcate, a foot or 

 less Ions:. Leaves not over 1 dm long, few, spreading, lax, nearly ses- 

 sile,, with green and rush-like rachis. Leaflets deciduous, linear to fili- 

 form, minute to 2.5 cm. long, distant, petiolulate, the terminal one the 

 simple rachis or slightly enlarged rachis or a leaflet barely jointed to 

 it. 6-8 pairs. Stipules small, not connate except at very base. Stems 

 erect, sulcate, 1-2 feet long, rather slender, flexuous, whole plant ap- 

 pearing smooth but really minutely pubescent. Grows in dense tufts 

 on dry rocks on south slopes in Snake river canon at and below Hunt- 

 ington Oregon. Lower Temperate life zone. Plants with the habit of 

 A. stenophyllus, and stems much as In A. junceus. 



67. Astragalus Hookerianus (T. & G.) Gray Proc. Am. Acad. 6 

 215 (1864). Phaca Hookeriana T. & G. 1 G93 (1840). This ante- 

 dates A. Hokerianus Dietr. A. Sonneanus Greene. Pods 3-6 cm. 

 long, 2-3 cm. wide, mostly oblong-obovate, a trifle obcompressed when 

 fresh, tapering into the stipe, very round at tip and minutely apiculate, 

 finely r<^t'>uUited, variously mottled, hardly at all oblique, cross sec- 

 t'on oblate round. Flowers in loose or dense heads, inclined to be 



