Inflati 99 



ashy when young, nearly smooth when ripe, stiff-papery, flatfish, or 

 broadly sulcate along the ventral suture, the cross section nearly half- 

 oval. Flowers 7-8 mm. long, few, white or tinged with purple above; 

 the banner waterlined or purple-veined, 4-5 mm. long, variously arched 

 beyond the calyx tips, about as long as wings. Wings half-obovate, 

 acutish, quite oblique, about 2 mm. longer than keel, white. Keel 

 half-cuneate with nearly square end and erect tip about 2-3 mm. high, 

 a little colored at the end. Calyx turbinate-campanulate, ;ibout 2 mm. 

 long, the teeth narrowly triangular and about as long as tube. Leaves 

 rarely 5 cm. long. Leaflets oval to obovate, notched or very 

 obtuse, 2-8 mm. long, smooth above, ashy below with short and 

 closely appressed hairs, the calyx similar but with some black hairs 

 intermixed. Stems quite slender, branching throughout, less than 

 a foot long, apparently from underground stems. It has the h^^bit of 

 A. Geyeri and appears to be short-lived. John Day valley Oregon. 

 Middle Temperate life zone. 



35. Astragalus pubentissimus T. & G. Fl. 1 fi93 (1840). A. multi 

 caulis Nutt., A. Peabodianus Jones, Phaca Rydberg. Pods ovate to 

 lanceolate, 1-2 cm. long, about 7-10 mm. wide and 5 mm. high, decidedly 

 obcompressed at base, much laterally flattened toward the deltoid to 

 triangular, sharp, apiculnte and uiitnrned tip which is 1-5 m-'-'. ''"^\g. 

 little if at all mottled, the cross section from trinnetrous-rrTiif-^rm o 

 transversely elliptical; jointed to a short stipe, walls very thin and 

 wrinkled, hairy within. Flowers either dull purple or tinged with 

 purple, ascending when fresh and gradually drooping with age, almost 

 capitate or very shortly-racemose, several. Banner oval, abruptly 

 arched to erect at calyx tips, the erect part about 4 mm. long, the sides 

 much reflexed below, the central part white and purple veined. 

 Wings obovate to lanceolate, notched, arched 30-45 degrees, fully 2 

 mm. wide, 1-2 mm. longer than keel and 2-4 mm. shorter than banner. 

 Keel 3-4 mm. long, the base nearly straight, and the tip abruptly 

 rounded to 110 degrees and deltoid and erect and rather acute, fully 

 3 mm. high, deep purple. Calyx tube about 3 mm. long, rather trun- 

 cate at base and attached a little below the middle, cleft deeper above 

 with broad sinus and teeth a little unequal, nearly subulate, arched nnd 

 about as long as tube to twice as long. Pedicels about 1 mm. long 

 and about as long as the minute triangular bracts. Peduncles 

 hardly half as long as the leaves, 1-3 cm. long, the rachis a little 

 shorter. Leaves innumerable (because of the many internodes which 

 are rarely 1 cm. long), 2-6 cm. long, broad, the petioles about half the 

 whole. Leaflets 3-8 pairs, mostly 5, broadly to narrowly elliptical, thick, 

 contiguous, ashy (api)earing as if minutely woolly) with partly spre-'d- 

 ing kinked rather appressed hairs, as is the whole plant except the 

 shaggy pods. Stipules rather deltoid, rarely 3 mm. long. Stems rather 

 coarse for the plant, round, a few inches to a foot or two long, forming 

 mats on the ground, very many and much branched from a slender 

 tap root. A short-lived perennial, but blooming the first year, growing 

 in clayey or slightly sandy soil on flats from the unner Green river 

 Hnsin Wyoming throughout the Navajo Basin to Farmington New 

 M^^xico and the San Juan and Henry Mts. Blooming in May and 

 June. Lower Temperate life zone. 



36. Astraoalus sabulonum Gray Proc. Am. Acad. 13 368 (1878), 

 A. Virgineus Sheldon. Phaca Rydberg. Pods e' l^^ng-ovate to h^lf- 

 oval. rounded pt base, ''uiculate to shortlv nemninate, arcuate to 

 nearly straight, brogdly sulcate dorsnlly. and s^-^ietinins so ventrnlly. 

 little laterally flnttened to slightly obcompressed, with cross section 

 triquetrous-ova'' to nearly round; ventral sutnre raised and rather 

 thick externally. Flowers (almost those of A. Vaseyi) 3-6. loose, about 

 7 mm. leng. w'th petals 2 mm. longer tham the calyx lobes. Banner 

 arched abruptly to erect or 100 degrees at end of tube, with white tip or 



