Part 2, 1920] FABACEAE: PSORALEAE 89 



long, about equaling the claw; wings and keel purple, with the bases yellowish, the blades of 

 the former 5-6 mm. long, those of the latter 6-7 mm. long; pod densely pubescent towards the 

 apex. 



Type locality: Tehtiacan de las Granadas, Puebla. 

 Distribution: Puebla and Oaxaca. 



96. Parosela argyrea (A. Gray) A. Heller, Cat. N. Am. PI. 

 ed. 2. 5. 1900. 



Dalea argyrea A. Gray, PI. Wright. 1: 47. 1852. 



A shrub, 3-10 dm. high, corymbosely branched above; branches canescent-tomentose and 

 glandular-tuberculate, leafy; leaves spreading, 1-2 cm. long; stipules subulate, about 2 mm. 

 long; petiole 3-5 mm. long; rachis canescent-tomentose; stipels gland-like; leaflets 7-13, 

 obovate or obovate-oblong, closely sericeous on both sides, glandular-dotted beneath, 5-8 mm. 

 long; peduncles terminating the branches, 1-2 cm. long; spikes dense, short, 1-2.5 cm. long; 

 bracts lance-ovate, acuminate, about equaling the calyx, canescent; calyx-tube broadly cam- 

 panulate, silky-villous, 2.5 mm. long; lobes deltoid, acute, shorter than the tube; banner 

 yellowish, fading purplish, the blade orbicular, 3-4 mm. long, equaling the claw; wings and 

 keel-petals purple, the blades of the keel-petals united along the lower edge; pod silky-villous. 



Type locality: Hills near the San Pedro River, Texas. 

 Distribution: Texas and New Mexico to Nuevo Leon and Chihuahua. 



97. Parosela Conzattii Rydberg, sp. nov. 



A low shrub; branches more or less warty, puberulent, spreading; leaves 2-3 cm. long; 

 stipules subulate-filiform; rachis puberulent; stipels conic, gland-like; leaflets 17-31, linear- 

 oblong, 4-5 mm. long, glabrous above, puberulent and glandular-dotted beneath; spikes dense, 

 short-peduncled at the ends of the branches, conic, about 2 cm. long; bracts ovate, acuminate, 

 sparingly pubescent, except the tip, glandular-dotted, equaling the calyx; calyx- tube pubes- 

 cent, campanulate, 2 mm. long; lobes elongate-deltoid, 1 mm. long; corolla rose-purple; blade 

 of the banner rounded-cordate, 3 mm. long, the claw 2 mm. long; blades of the wings 3 mm. long, 

 those of the keel-petals 4.5 mm. long, their claws respectively 2 mm. and 3 mm. long. 



Tvpe collected at Cerro San Antonio, Oaxaca, December 15, 1901, Conzalti (U. S. Nat. Herb. 

 no. 8653? 1). 



98. Parosela tuberculina Rydberg, sp. nov. 



A low shrub; branches short, puberulent, densely glandular-tubercled ; leaves 1-3 cm. 

 long, spreading; stipules subulate, 2 mm. long; rachis puberulent, sparingly glandular-dotted; 

 stipels conic, gland-like; leaflets 7-11, obovate, retuse, 4—5 mm. long, glabrous above, puberu- 

 lent and glandular-dotted beneath; peduncles terminal, 1-2 cm. long; spikes dense, oblong, 

 1.5-3 cm. long; bracts lanceolate, acute, short-pilose; calyx-tube broadly campanulate, 2 mm. 

 long, densely short-pilose; lobes lanceolate, subulate-tipped, 1.5 mm. long; banner yellowish, 

 the blade 3 mm. long, broadly cordate; wing- and keel-petals rose-purple, the blades of the 

 wings 4 mm., those of the keel-petals 5 mm. long; pod densely pubescent. 



Tvpe collected in the vicinity of San Luis Tultitlanapa, Puebla. July 190S, Purpus 3215 (herb. 

 N. Y. Bot. Gard.). 



99. Parosela fulvosericea Rydberg, sp. nov. 



A shrub, about 5 dm. high; branches brown, villous; leaves 1.5-3 cm. long, spreading; 

 stipules subulate, 2 mm. long; rachis densely villous; leaflets 7-9, obovate, retuse, yellowish- 

 sericeous on both sides, indistinctly glandular-dotted beneath, 4—10 mm. long; spikes oblong, 

 2-3 cm. long, dense, on peduncles 2-6 cm. long; bracts ovate-lanceolate, acute, about equaling 

 the calyx, sericeous, glandular-dotted; calyx-tube broadly campanulate, 2 mm. long, sericeous, 

 inconspicuously glandular-dotted; lobes lanceolate, acute, sericeous, 1.5 mm. long; petals with 

 a gland near the tip; banner yellowish, the blade broadly cordate, 2.5 mm. long, equaling the 

 claw; the other petals rose-purple, the blades about 4 mm. long, the claws 1.5 mm. long; pod 

 densely pubescent. 



Type collected in the region of San Luis Potosi, 1878, Parry & Palmer 148, in part (U. S. Nat. 

 Herb. no. 24432, in part). 



