Bodin's Milk Vetch

Phaca yukonis (M. E. Jones) Rydberg
Astragalus Yukonis M. E. Jones, Rev. Astrag. 89. 1923.
Perennial, with a slender, cespitose rootstock; stems filiform, decumbent at the base, 1-2 dm. high, sparingly pubescent; leaves 2-5 cm. long; stipules deltoid, 1-3 mm. long; leaflets 5-13, elliptic, 4-7 mm. long, obtuse or retuse at the apex, glabrous above, sparingly strigose beneath; peduncles about 1 dm. long; racemes at first short, elongate in age, 2-6 cm. long; bracts deltoid, scarious, 2 mm. long; pedicels 1-1.5 mm. long; calyx black-hairy, the tube 2.5 mm. long, the teeth deltoid-subulate, fully 1 mm. long; corolla purple, 7-8 mm. long; banner obovate, moderately arched; wings shorter, the blades oblong, rather strongly falcate; keelpetals still shorter, the blade strongly lunate, rounded at the apex; pod ellipsoid, about 7 mm. long, 4 mm. broad, black-hairy with short hairs.
Type locality: Ranch Valley, Fort Selkirk on the Yukon.
Distribution: Yukon.

Phaca prebblei Rydberg, sp. now
Perennial, with a rootstoek; stems slender, 2-3 dm. long, prostrate or decumbent, sparingly hairy; leaves 3-5 cm. long, spreading; stipules ovate, 3 mm. long; leaflets 13-17, elliptic or oblong, 4-15 mm. long, acute at the base, obtuse or more often slightly emarginate at the apex, glabrous above, sparingly strigose beneath; peduncles 7-12 cm. long; racemes 3-5 cm. long, rather lax; bracts lanceolate, 2 mm. long; pedicels 1 mm. long; calyx black-hairy with short hairs, the tube 3 mm. long, the teeth subulate, 1 mm. long; corolla purplish, about 10 mm. long; banner broadly obovate, retuse, rather strongly arcuate; wings shorter, the blade obliquely oblanceolate, falcate, with a reflexed auricle; keel-petals still shorter, the blade broadly lunate; pod obliquely elliptic-ovoid, 1 cm. long, 3-4 mm. wide, white-strigose, the upper suture nearly straight.
Type collected on the Athabasca River. Alberta. August 14'. 1903, Prebble &■ Cary 123 (U. S. Nat. Herb. 421630).
Distribution: Alberta and Mackenzie.

Homalobus retusus Rydb. Bull. Torrey Club SO: 186. 1923
A perennial, with a slender cespitose rootstock; stems decumbent or ascending, 1-2 dm. long; leaves 5—8 cm. long; stipules lanceolate or the lower ovate or triangular, connate, 1-2 mm. long; leaflets 9-11, oblong to oval, often retuse or emarginate, 5-12 mm. long, 2-4 mm. wide, glabrous above, sparingly strigose beneath; peduncles 6-10 cm. long, slender; racemes short, 5-10-flowered; bracts lanceolate, 2 mm. long; calyx black-hairy, the tube 2 mm. long, the teeth subulate, 1 mm. long; corolla purplish; banner 8-9 mm. long, obovate; wings 7-8 mm. long, the blade obliquely oblanceolate, with a long basal auricle; keel-petals slightly shorter, with a rounded apex; pod black -hairy, sessile, S mm. long, 3.5 mm. wide.
Type locality: Fort Selkirk, Yukon. Distribution: Yukon and Mackenzie territories.