Marina greenmaniana (Rose) Barneby

Parosela greenmaniana Rose, Contr. U. S. Nat. Herb. 8: 303 1905.
Dalea unifoliata Rob. & Greenm. Proc. Am. Acad. 29: 383, in part. 1S94.
A slender annual; stem glabrous, diffusely branched from the base, 2-4 dm. high, minutely glandular-punctate, usually reddish; leaves 1-3-foliolate; stipules minute, subulate; petioles about 5 mm. long; stipels minute; terminal leaflet suborbicular or rounded-oval, 5-15 mm. long, strongly veined beneath, glabrous, with conspicuous marginal glands, and sparingly and minutely glandular-punctate beneath; lateral leaflets, if present, scarcely half as long as the terminal one; petiolules about 0.5 mm. long; racemes terminating the branches, lax, including the peduncle 4—6 cm. long; bracts lanceolate, acuminate, 1.5-2 mm. long, slightly ciliolate, deciduous; pedicels 0.5-1 mm. long; flowers reflexed ; calyx distinctly articulate to the pedicel, the tube turbinate, strongly 10-costate, about 2.5 mm. long; lobes ovate, shorter than the tube, acute; petals purple; blade of the banner suborbicular, about 1.3 mm. long, and usually slightly broader, the claw less than 1 mm. long; wings and keel-petals similar, the blades obliquely obovate, fully 1.5 mm. long, the claw 0.5 mm. long; pod included, broadly and obliquely obovate, with a minute beak.
Type locality: Las Sedas, Oaxaca. Distribution: Oaxaca.