Dalea purpurea Vent.

Petalostemon standleyanus Rydberg, sp. nov
Petalostemon tcnuifolius Wooton & Standley, Contr. U. S. Nat. Herb. 19: 356, in part. 1915.
A perennial, branched at the base; stems 3-5 dm. high, usually sparingly pubescent; leaves numerous, ascending, 3-5 cm. long; stipules subulate-setaceous; leaflets mostly 5, linear, obtuse, usually involute, 10-15 mm. long, glabrous or sparingly pubescent and conspicuously glandular-dotted beneath; peduncles 2-7 cm. long; spikes oblong, 1-3.5 cm. long, 10-12 mm. thick; bracts oblanceolate or obovate, or the lower lanceolate, abruptly acuminate into a subulate tip, more or less pubescent throughout; calyx silkyvillous, 3-4 mm. long; lobes lanceolate, acute, shorter than the tube; corolla rose-purple; blade of the banner rounded-cordate, 2 mm. long, the claw slightly longer; blades of the other petals oblong, rounded at the apex, more than 2 mm. long; pod densely pubescent.
Type collected in the Raton Mountains, New Mexico, August 18-19. 1903, David Griffiths 5464 (U. S. Nat. Herb. no. 496689).
Distribution: Northern New Mexico.