112 NORTH AMERICAN FLORA [Volume 24 



long; blades of the wings 4 mm. long, those of the keel-petals 6-7 mm. long, the claws of both 

 3 mm. long; fruit densely pubescent. 



Type locality: San Juan del Rio, Queretaro. 

 Distribution: Queretaro. 



165. Parosela lutea Cav. Descr. PI. 186. 1802. 



Psoralea lutea Cav. Ic. 4: 12. 1797. 



Dalea onali folia Ortega, Dec. 30. 1797. 



Dalca lutea Willd. Sp. PI. 3: 1341. 1803. 



Dalea flava Moc. & Sesse; DC. Prodr. 2: 245, as synonym. 1825. 



Dalea cinerea Moric; Donn. Smith, Bot. Gaz. 20: 283, in part. 1895. 



A low shrub, 3-5 dm. high; branches rather densely short-pubescent, in age grayish; 

 leaves 2-4 cm. long; stipules subulate; rachis softly pubescent; leaflets 15-21, elliptic or oval, 

 often slightly retuse, pilose on both sides, sparingly so above and sometimes glabrate, 4-6 mm. 

 long; stipels gland-like; peduncles terminal, 1-3 cm. long; spikes dense, 5-S cm. long, about 

 1 cm. thick; bracts ovate, acuminate, more or less pubescent or in age glabrate, nearly black; 

 calyx-tube broadly turbinate, 2.5 mm. long, more or less pilose, except at the base, glandular- 

 dotted between the 10 ribs; lobes pilose-ciliate, subulate-filiform, from a triangular base, 

 the lowest 4—5 mm. long, the rest 3 mm. long; corolla yellow; blade of the banner round-reni- 

 form, 3 mm. long, 5 mm. broad, the claw 3 mm. long; blades of the wings 5 mm. long, those 

 of the keel-petals 7-8 mm. long; pod densely villous. 



Type locality: Mexico. 



Distribution: Nuevo Le6n and Puebla to Guatemala. 



Illustrations: Cav. Ic. pi. 325; Ortega, Dec. pi. 3. 



166. Parosela Wardii Rydberg, sp. nov. 



Dalea leucostoma var. A. Gray, Proc. Am. Acad. 5: 177. 1861. 



Dalea cinerea Moric; (Hemsl. Biol. Centr. Am. Bot. 1: 238; hyponym. 1880) Donn. Smith, Bot. 

 Gaz. 20: 283, in part. 1S95. 



A shrub, 3-6 dm. high; branches rather densely pubescent; leaves 1-4 cm. long; stipules 

 subulate, persistent, 2 mm. long; rachis densely pubescent; leaflets 9-15, oblong, 3-8 mm. long, 

 villous-canescent on both sides, obtuse; peduncles terminal, about 1-5 cm. long; spikes dense, 

 2-3 cm. long; bracts ovate, acuminate, black, glandular-dotted, glabrous or the margins slightly 

 ciliate; calyx-tube broadly campanulate, 2.5 mm. long, silky-pilose, with a row of glands be- 

 tween the ribs; lobes subulate-filiform, with a broad base, 2 mm. long, plumose; corolla j'ellow, 

 fading brownish; blade of the banner rounded-reniform, 3 mm. long, 4 mm. wide; blades of 

 the wings 4 mm., those of the keel-petals 5 mm. long, the claws of both 1.5-2 mm. long; pod 

 densely pubescent. 



Tvpe collected at San Luis Potosi, September, 1891, Lester F. Ward (U. S. Nat. Herb. no. 

 134594). 



Distribution: Tamaulipas and San Luis Potosi. 

 t 



167. Parosela caudata Rydberg, sp. nov. 



A shrub, 1 m. high or more; branches densely villous; leaves 3-4 cm. long; stipules subulate, 

 2-3 mm. long; rachis densely villous; leaflets 13-17, oblong or elliptic, 5-6 mm. long, villous 

 on both sides, less densely so above; peduncles terminating the branches, 2-5 cm. long; 

 spikes dense, 2-6 cm. long, fully 1 cm. thick; bracts lanceolate, contracted into a long fili- 

 form tip, longer than the calyx-lobes; calyx-tube broadly turbinate, 2.5 mm. long, sparingly 

 silky-pilose, more densely so along the margins, 10-ribbed, with a row of glands in each inter- 

 val; lobes filiform from a triangular base, plumose, the lowest 4 mm. long, the rest 2.5-3 mm. 

 long; corolla yellow, turning brownish; blade of the banner round-reniform, 2.5 mm. long, 4 

 mm. broad, the claw 4 mm. long; blades of the wings 4 mm. long, those of the keel-petals 

 6 mm. long, the claws of both 3 mm. long; pod densely villous. 



Type collected at Alvarez, San Luis Potosi, September 5-10, 1902, Edward Palmer 110 (U. S. 

 Nat. Herb. no. 30765S). 



XXXIX. Thyrsiflorae. Glabrous or pubescent branched shrubs. Leaflets of several 

 pairs. Spikes mostly short, numerous, sometime compound, borne in the axils of the leaves, 



