Part 2, 1920J FABACEAE: PSORALEAE 105 



glands in 2 irregular semicircles, the claw 2.5 mm. long; blades of the wings 4-4.5 mm. long, 

 those of the keel-petals 5 mm. long, the claws of both 1.5 mm. long. 



Type locality: Sierra Madre, 40 miles south of Saltillo. 



Distribution: Coahuila. 



XXXIV. Crassifoliae. Glabrous herbs. Leaflets numerous, 15 pairs or more, elliptic 

 or oval. Spikes dense; bracts ovate to lanceolate, pubescent, not conspicuously glandular. 

 Calyx-tube densely silky, glandular-dotted between the ribs; lobes triangular with a subulate 

 tip, shorter or longer than the tube. Corolla rose or rose-purple to nearly white. Blade of the 

 banner rounded-cordate, with a semicircle of glands at the base. Wings and keel-petals in- 

 serted far below the middle of the staminal tube. Pod long-silky above, glabrous at the base. 



143. Parosela longifolia Rose, sp. nov. 



A glabrous herb, probably woody at the base, 1 m. high or more; branches slender, striate, 

 glabrous, strongly ascending; leaves 5-10 cm. long; stipules short, subulate; rachis glabrous; 

 stipels gland-like; leaflets 31-37, oval, 3-4 mm. long, flat, glabrous on both sides, conspicuously 

 glandular-dotted beneath; peduncles terminating the branches, 2-10 cm. long; spikes dense, 

 2-3 cm. long, about 1 cm. thick; bracts ovate, pilose and glandular-dotted, acuminate; calyx- 

 tube campanulate, silky-pilose, inconspicuously glandular-dotted between the ribs, 3 mm. 

 long; lobes filiform from a triangular base, 2 mm. long; banner yellowish, the blade round- 

 cordate, 3 mm. long, with a semicircle of glands near the base, the claw 3 mm. long; wings and 

 keel-petals light rose-colored, the blades of the former 4 mm. long, those of the latter 5 mm. 

 long, the claws of both 2 mm. long; pod long silky above, glabrate towards the base. 



Tvpe collected on the road from Altenguilla to Jacala, Jalisco, March 5, 1897, E. W. Nelson 

 4016 (U. S. Nat. Herb. no. 327050). 



144. Parosela roseiflora Rydberg, sp. nov. 



A glabrous herb, perhaps woody at the base; stem 4 dm. high or more, striate, glabrous; 

 leaves 6-10 cm. long; stipules small, subulate; rachis glabrous, slightly margined; stipels 

 gland-like; leaflets 25-41, elliptic, about 5 mm. long, glabrous, minutely glandular-dotted, 

 obtuse at each end; spikes very dense, about 2 cm. long; bracts ovate, silky, abruptly cordate- 

 acuminate, much exceeding the calyx; calyx-tube campanulate, 3 mm. long, silky, with rather 

 small glands in the intervals; lobes lance-deltoid with linear-subulate tips, plumose, 3 mm. long; 

 corolla rose-colored; blade of the banner ovate-cordate, 3.5 mm. long, the claw 2 mm. long; 

 blades of the wings and keel-petals 4 mm. long, the claws about 2 mm. long; pod silky-villous; 

 above. 



Type collected in Sierra Madre [Sinaloa or Durango], Seemann* (Gray Herbarium). 



145. Parosela crassifolia (Hemsl.) Rose, Contr. U. S. Nat. 

 Herb. 12: 272. 1909. 



Dalea crassifolia Hemsl. Biol. Centr. Am. Bot. 1: 23S. 1880. 



A shrub, 5 dm. high or more, with elongate branches, striate, glabrous, sparingly glandular- 

 dotted; leaves 4—5 cm. long, ascending; stipules subulate, small; rachis slightly margined, 

 fleshy, glabrous, glandular-punctate; stipels gland-like; leaflets 47-71, oblong, 3-4 mm. long, 

 fleshy, glabrous and glaucous, channeled above, conspicuously glandular-dotted beneath ; 

 peduncles terminating the branches, 1-4 cm. long; spikes dense, 2-3 cm. long; rachis velu- 

 tinous; bracts narrowly lanceolate, subulate-acuminate, silky-pilose and with a few glands, 

 equaling the calyx; calyx-tube broadly campanulate, 2 mm. long, densely silky-pilose, and 

 glandular-dotted between the ribs; lobes filiform-subulate from a lance- triangular base, silky- 

 plumose; corolla light-rose or nearly white; blade of the banner ovate-cordate, 2.5 cm. long, 

 equaling the claw; blades of the wings 3 mm. long, those of the keel-petals with a smaller more 

 reflexed basal lobe, 3.5-4 mm. long, the claws of both 2-3 mm. long; pod densely pilose above, 

 glabrate at the base. 



Type locality: Sierra Madre [Sinaloa or Durango]. 



Distribution: Jalisco to Sinaloa. 



*Hemsley (Biol. Centr. Am. Bot. 1: 239. 1880) refers this erroneously to Dalea data Mart. & 

 Gal. 



