Part 2, 1920] FABACEAE: PSORALEAE 101 



nate, 3 mm. long, silky; lobes filiform, with a broad base, plumose, much exceeding the tube; 

 corolla bluish-purple or partly white; blade of the banner suborbicular, 3-4 mm. long, slightly 

 cordate at the base, the claw 4 mm. long; blades of the wings 5 mm. long, those of the keel- 

 petals 6-7 mm. long, the claws of both about 3 mm. long; pods silky. 



Type locality: Mexico. 



Distribution: Durango to Guatemala. 



Illustrations: Mem. Soc. Geneve 7: pi. 8; Moric. PI. Am. pi. 8. 



130. Parosela gracilis (Kunth) Rose, Contr. U. S. Nat. 

 Herb. 10: 105. 1906. 



Dalea sericea G. Don. Gen. Hist. 2: 223. 1832. Not D. sericea Lag. 1816. 



Dalea gracilis Kunth, Mimoses 166. 1824. 



Psoralea sericea Sesse & Moc. PI. Nov. Hisp. 121. 1889. 



A perennial, with a woody caudex; stems decumbent at the base, densely leafy, less than 

 half their length, 2-3 dm. high, silky-strigose ; leaves spreading, 1.5-4 cm. long; stipules subu- 

 late, 4—5 mm. long; petiole 5-10 mm. long; rachis sericeous, not glandular; leaflets 5-19, elliptic 

 or oblanceolate, acute at each end, 5-15 mm. long, silky on both sides; peduncles terminal, 

 1-2 dm. high; spikes dense, oblong, 2-5 cm. long, 12-15 mm. thick; bracts lanceolate, attenuate, 

 silky, scarcely scarious-margined; calyx-tube turbinate, 2.5 mm. long, silky, 10-ribbed; lobes 

 filiform from a broad base, longer than the tube; blade of the banner rounded, subcordate, 

 wavy, 4 mm. long, the claw 2 mm. long; blades of the wings 5-6 mm. long, those of the keel- 

 petals broader, 6-7 mm. long, the claws of both 2 mm. long; pod villous. 



Type locality: Near Guanajuato. 



Distribution: Guanajuato to Veracruz and Puebla. 



Illustration: Kunth, Mimoses pi. 48. 



131. Parosela reclinata (Cav.) Rydberg. 



Psoralea reclinata Cav. Ic. 1: 60. 1791. 



Dalea reclinata Willd. Sp. PI. 3: 1340. 1803. 



Petaloslemcm reclinatus Steud. Nom. Bot. ed. 2. 2: 408. 1841. 



A suffruticose perennial; stems 2-4 dm. long, decumbent, prostrate, except the tips and 

 peduncles, much branched; branches puberulent or slightly silky, usually reddish; leaves 

 1-3 cm. long; stipules subulate, 3-5 mm. long; rachis sericeous; stipels subulate-setaceous; 

 leaflets 5-7, oblanceolate, 5-10 mm. long, acute or short-acuminate, silky on both sides; 

 peduncles 5-10 cm. long; spikes dense, 1.5-5 cm. long, about 1 cm. thick; bracts ovate, caudate- 

 acuminate, purplish, silky on the back, glabrous and more or less scarious on the margins; 

 calyx-tube campanulate, 3 mm. long, densely sericeous; lobes 2 mm. long, filiform from a 

 broad base, sericeous-plumose; banner often cream-colored or purplish on the sides, the blade 

 broadly cordate, with inflexed acute basal lobes, 3.5 mm. long, the claw 2 mm. long; wings and 

 keel-petals rose-purple, the blades 4 mm. long, the claws 1.5 mm. long; pod densely silky- 

 pilose. 



Type locality: Mexico. 

 Distribution: Oaxaca. 

 Illustration: Cav. Ic. pi. 87. 



XXXIII. Versicolores. Pubescent shrubs. Leaflets few to more numerous, more or 

 less pubescent. Spikes dense, at the ends of the branches. Calyx-tube 10-ribbed with a row 

 of rather large glands in each interval; lobes subulate, filiform from a broader base, usually 

 longer than or equaling the tube (except in the first species). Corolla purple or rose, with an 

 ochroleucous or white banner, which usually bears a semicircle of glands near the base of the 

 blade. Wings and keel-petals inserted far down on the staminal tube. Pod pubescent and 

 conspicuously glandular-punctate above. 



132. Parosela oaxacana Rose, Contr. U. S. Nat. Herb. 

 10: 104. 1906. 



A shrub, 1-2 m. high, with many ascending branches, finely and softly pubescent, often 

 reddish; leaves spreading, 3-5 cm. long; stipules minute, subulate; petiole about 5 mm. long; 



