Part 2, 1920] FABACEAE: PSORALEAE 111 



elliptic, 5-7 mm. long, glabrous above, except the margins, long-pilose and glandular-punctate 

 beneath, slightly retuse; spikes terminal, dense, 2-4 cm. long; bracts glabrous, ovate and con- 

 cave, abruptly caudate-acuminate, longer than the calyx; calyx-tube turbinate, 10-ribbed, 

 with a row of oblong conspicuous glands in each interval, 2.5 mm. long; lobes long-pilose, with 

 a broad triangular base, abruptly contracted into a subulate-filiform tip, the lowest 3 mm. 

 long, the rest 2 mm. long; corolla yellow; blade of the banner reniform-cordate, 2 mm. long; 

 blades of the wings 3 mm., those of the keel-petals 5 mm. long, the claws of both 2 mm. long; 

 fruit sericeous. 



Typb locality: Mexico. 



Distribution: Hidalgo. 



Illustrations: Mem. Soc. Geneve 6: pi. 5; Moric. PI. Nouv. Am. pi. 5. 



162. Parosela atrocyanea Rydberg, sp. nov. 



A low shrub; branches dark-gray, in age blackening, strigose; leaves 1-3 cm. long; stipules 

 subulate, persistent, 1-2 mm. long; rachis sparingly strigose; stipels gland-like; leaflets 9-17, 

 oblong to obovate, sometimes retuse, 4-7 mm. long, glabrous above, strigose and glandular- 

 dotted beneath; peduncles terminal, 1-5 cm. long; spikes dense, 1.5-3.5 cm. long, fully 1 cm. 

 thick; bracts ovate, black, acuminate, fully equaling the calyx, glabrous except the ciliate 

 margins and tip; calyx-tube broadly campanulate, 2.5 mm. long, nearly glabrous, with a few 

 scattered hairs, conspicuously glandular-dotted between the strong ribs; lobes filiform from a 

 triangular base, strongly ciliate, slightly shorter than the tube; corolla probably at first yellow, 

 soon dark ultra-marine blue with the banner wholly or partly yellow; blade of the banner 

 cordate, 3 mm. long, equaling the claw; blades of the wings 4 mm. long, those of the keel- 

 petals broader, 5.5 mm. long, the claws of both 2-3 mm. long; pod densely pubescent above, 

 glabrous below. 



Tvpe collected in the vicinity of San Luis Tultitlanapa, Puebla. July, 190S, Purpiis 265 1 (herb. 

 N. Y. Bot. Gard.). 



163. Parosela plumosa (S. Wats.) Rose, Contr. U. S. Nat. 

 Herb. 10: 106. 1906. 

 Dalea plumosa S. Wats. Proc. Am. Acad. 21: 448. 1886. 



A low shrub, 3-5 dm. high; branches finely short-pubescent and minutely glandular- 

 dotted when young, glabrate and straw-colored in age; leaves 2-3 cm. long; stipules lance- 

 subulate; leaflets 11-17, elliptic-obovate, obtuse or retuse, 4-6 mm.. long, sparingly and minutely 

 pilose on both sides; stipels gland-like; peduncles terminal, 1-3 cm. long; spikes dense, 2-4 cm. 

 long, about 1 cm. thick; bracts ovate-lanceolate, acute or short-acuminate, glabrous, con- 

 spicuously glandular-dotted, longer than the calyx-tube, deciduous; calyx-tube glabrous ex- 

 cept the margins, turbinate, 10-ribbed, with 3 or 4 black glands in each interval, 2.5 mm. long; 

 lobes long-pilose, with a broad triangular base abruptly contracted into a filiform tip, 2 mm. 

 long or the lowest a little longer; corolla yellow, turning brownish; blade of the banner round- 

 reniform, nearly 3 mm. long, the claw 3 mm. long; blades of the wings 4 mm. long, those of 

 the keel-petals 5-5.5 mm. long; pod pubescent and glandular-dotted. 



Type locality: Near Chihuahua [city]. 

 Distribution: Chihuahua. 



164. Parosela Painteri Rose, Contr. U. S. Nat. Herb. 10: 105. 

 1906. 



A low shrub, 3-5 dm. high; branches minutely and sparingly puberulent and minutely 

 glandular-dotted, in age dark-gray and striate; leaves 1.5-3 cm. long; stipules lance-subulate; 

 leaflets 11-15, oblong, 5 mm. long, retuse, glabrous above, glandular-dotted and sparingly and 

 minutely pubescent beneath; stipels gland-like; spikes terminal, short, dense, 2-3 cm. long; 

 peduncles 3-5 cm. long; bracts ovate, acute, slightly pubescent, deciduous; "calyx-tube broadly 

 turbinate, glabrous, except on the margin, 2.5 mm. long, with 3-4 oblong black glands in each 

 interval; lobes long-pilose, the lowest equaling the tube, the upper shorter; corolla yellow, 

 turning brownish-purple; blade of the banner round-reniform, 3 mm. long, the claw 3 mm. 



