Part 5, 1929] FABACEAE: GALEGEAE 265 



wide; peduncles 4-6 cm. long; racemes 2-3 cm. long, 6-8-flowered; bracts lanceolate, 2 mm. 

 long; pedicels 1 mm. long; calyx strigose with black hairs, the tube 2 mm. long, the teeth sub- 

 ulate, 1.5-2 mm. long; corolla violet-purple, S mm. long; banner obovate, notched at the apex; 

 wings shorter, the blade obliquely obovate, with a rounded auricle; keel-petals much shorter, 

 similar but broader, rounded at the apex; pod obliquely oval, 7-8 mm. long, 2.5 mm. wide, 

 strigose, the upper suture nearly straight. 



Type LOCALITY: Sky High, Unionville, Montana. 

 Distribution: Montana to Washington. 



20. Homalobus vexilliflexus (Sheldon) Rydb. Mem. N. Y. 

 Bot. Gard. 1: 249. 1900. 



Astragalus pauciflorus Hook. Fl. Bor. Am. 1: 149. 1831. Not .4. pauciflorus Pall. 1800. 

 Tragacantha pauciflora Kuntze, Rev. Gen. 947. 1891. 

 Astragalus vexilliflexus Sheldon, Minn. Bot. Stud. 1: 21. 1894. 



A perennial, with a cespitose caudex; stems many, ascending, or decumbent, 1-2 dm. high, 

 strigose; leaves 2-5 cm. long; upper stipules lanceolate, green, 2-3 mm. long, strigose, the lower 

 deltoid, connate, more or less purplish; leaflets 7-11, oblong, acute, 6-15 mm. long, 2-4 mm. 

 wide, strigose beneath, slightly so or glabrate above; peduncles 2-3 cm. long; racemes short, 

 2-5-flowered ; bracts lanceolate, 2 mm. long; calyx strigose, the tube 2 mm. long, the teeth 

 subulate, 1 mm. long; corolla purple; banner obovate, 6-7 mm. long, retuse; wings 5 mm. 

 long, the blades obliquely oblanceolate, falcate, the claw short; keel-petals strongly lunate, 

 ochroleucous, with purple rounded tip; pod elliptic, 8-10 mm. long, 3 mm. wide, acute at each 

 end, sessile, strigose; seed almost black, rounded-reniform, 2.5 mm. long, nearly 2 mm. broad. 



Type locality: Rocky Mountains, Canada. 



Distribution: Saskatchewan to British Columbia and Wyoming. 



Illustration: M. E. Jones, Rev. Astrag. pi. S.f. 31. 



21. Homalobus tegetarioides (M. E. Jones) Rydberg. 



Astragalus tegetarioides M. E. Jones, Contr. W. Bot. 10: 66. 1902. 



A densely cespitose perennial, with numerous subterranean stems; stems decumbent, 

 branched, about 1 dm. long, finely pubescent with crisp hairs; leaves 2-4 cm. long, with slender 

 petioles; stipules deltoid, green, 3-5 mm. long; leaflets 7-9, obovate or obcordate, 3-5 mm. 

 long, crisp-hairy on both sides, folded; peduncles about 1 cm. long or less; racemes very short, 

 3-6-flowered; bracts lanceolate; calyx pubescent, the tube 1 mm. long, the teeth subulate, 2 

 mm. long; corolla ochroleucous, purple-striate ; banner 4 mm. long, broadly obovate, strongly 

 arched; wings shorter, the blades broadly obovate, very oblique; keel-petals much shorter, the 

 blade broadly lunate, almost semicircular, obtuse; pod obliquely broadly elliptic, 4 mm. long, 

 3 mm. wide, and 1-1.5 mm. thick, mostly 1-seeded. 



Type locality: Southern Blue Mountains, Oregon. 

 Distribution: Known only from the type locality. 

 Illustration: M. E. Jones, Rev. Astrag. pi. 7,f. 22. 



3. Bourgoviani. Cespitose caulescent perennials, with a branched, rather slender caudex 

 or rootstock. Stems usually decumbent at the base. Leaves pinnate, with several pairs of 

 leaflets. Stipules mostly scarious, the lower broad and connate. Peduncles elongate, the 

 racemes several- or few-flowered. Calyx campanulate, black-hairy. Corolla purple, the ban- 

 ner rather strongly arched, a little longer than the wings, the keel-petals with lunate blades, 

 obtuse at the apex. Pod lance-oblong, short-stipitate or sessile, acute at each end, black-hairy 

 with rather long hairs. 



22. Homalobus Bourgovii (A. Gray) Rydb. Mem. N. Y. 



Bot. Gard. 1; 247. 1900. 



Astragalus Bourgovii A. Gray, Proc. Am. Acad. 6: 227. 1864. 

 Tragacantha Bourgovii Kuntze, Rev. Gen. 943. 1891. 



A perennial, with a cespitose caudex; stem decumbent to erect, 2-30 cm. high; leaves 3-10 

 cm. long, ascending or erect; stipules lanceolate or the lower ovate, connate, 1-3 cm. long; 



