Marina alamosana (Rydb.) Barneby

Parosela alamosana Rose, sp. nov A perennial herb, branched at the base; stems several, decumbent or prostrate, 1-3 dm. long, slender, strigose; leaves 2-3 cm. long, spreading; stipules minute, subulate; petioles 2-3 mm. long; raehis strigose-canescent; stipels obsolete; leaflets 15-21, oblong, 2 mm. long, striate and glabrous above, strigose beneath, rounded at the apex; peduncles 1-2 cm. long, terminal or opposite the leaves; bracts lanceolate, strigose, caducous; calyx-tube turbinate, 1.5 mm. long, strongly 10-ribbed, canescent; lobes lanceolate, acute, the upper four 2 mm. long, the lowest 3 mm. long; corolla apparently white; blade of the banner subreniform, 1.5 mm. long, 2.5 mm. broad, the claw 2 mm. long; wings and keel-petals inserted far below the middle of the staminal tube; blades of the wings 3 mm. long, those of the keel-petals 4 mm. long, the claws 1.5 mm. long.
Type collected at Alamos, Sonora, September 1S90, Edward Palmer 711 (U. S. Nat. Herb. no. 24314).
Distribution: Type locality and vicinity.