62 NORTH AMERICAN FLORA [Volume 24 



34. Parosela filiciformis (Rob. & Greenm.) Rose, Contr. U. S. Nat. 

 Herb. 8: 303. 1905. 



Dalea filiciformis Rob. & Greenm. Proc. Am. Acad. 29: 382. 1894. 



A suffrutescent perennial, with a thick woody fusiform root; stems woody below, much 

 branched, 2-5 dm. high, glabrous, glandular-dotted; leaves 1-3 cm. long; stipules minute, 

 subulate; petioles 2-4 mm. long; rachis slender, glabrous, glandular-dotted; stipels wanting; 

 leaflets 17-37, small, 1-2 mm. long, oval to suborbicular, rounded at both ends, glabrous, glan- 

 dular-dotted beneath; peduncles terminal or opposite the leaves, often 1 dm. long; racemes lax, 

 5-10 cm. long; bracts ovate, acuminate, glabrous, caducous, purplish, glandular-dotted, 3 mm. 

 long; calyx very villous; tube turbinate, strongly 10-ribbed, glandular-dotted between the ribs; 

 lobes subulate, filiform-attenuate, 5-6 mm. long, plumose; corolla yellowish below, purplish 

 upwards, purple-veined; blade of the banner cordate, 5 mm. long, the claw 2 mm. long; wings 

 and keel-petals inserted near the base of the staminal tube; blades of the former 5 mm. long, 

 with a large rounded basal lobe, those of the latter 8-9 mm. long, with a smaller basal lobe, 

 the claws of both 2 mm. long; pod rounded-obovate, pilose and glandular-dotted. 



Type locality: Villar, San Luis Potosi. 



Distribution: San Luis Potosi and Aguas Calientes to Oaxaca. 



35. Parosela Berlandieri (A. Gray) Rose, Contr. U. S. Nat. Herb. 



10: 106. 1906. 



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



A shrub, 5-10 dm. high; branches glabrous, ashy, only sparingly glandular-punctate; 

 leaves 1-2 cm. long; stipules minute, subulate; petioles 3-5 mm. long; rachis glabrous, glandular- 

 dotted; stipels gland-like; leaflets 5-7, obovate-oblong or cuneate, 3-4 mm. long, glabrous, con- 

 spicuously glandular-dotted beneath; peduncles terminating the branches, 1-2 cm. long; ra- 

 cemes rather lax, 2-4 cm. long; bracts ovate-lanceolate, acuminate, ciliate, caducous; calyx 

 densely pilose; tube 2 mm. long, strongly 10-ribbed; lobes subulate, filiform-attenuate, 5 mm. 

 long; corolla apparently yellowish at first, rubescent; blade of the banner cordate, 3 mm. long, 

 the claw 2 mm. long; wings and keel-petals inserted far below the middle of the staminal 

 tube; blades of the former 4 mm. long, those of the latter 6 mm. long; pod pilose. 



Type locality: San Carlos, Tamaulipas. 

 Distribution: San Luis Potosi and Tamaulipas. 



36. Parosela calycosa (A. Gray) A. Heller, Cat. N. Am. PI. ed. 2. 



5. 1900. 



Dalea calycosa A. Gray. PI. Wright. 2: 40. 1853. 



A perennial, suffruticose at the base; stems many, 1-3 dm. high, more or less strigose-can- 

 escent; leaves 1-3 cm. long; stipules lanceolate, acuminate, strigose; petioles about 5 mm. long; 

 rachis strigose-canescent ; stipels minute, subulate ; leaflets 15-29, oval or obovate, 3-5 mm. long, 

 obtuse or retuse at the apex, glabrous above, strigose-canescent beneath; peduncles opposite 

 the leaves or terminal, 2-4 cm. long; racemes dense, 2-4 cm. long; bracts lanceolate, pubescent, 

 caducous; calyx densely pilose; tube turbinate, strongly 10-ribbed, 2.5 mm. long; lobes lanceo- 

 late, 4-5 mm. long; corolla white and purple; blade of the banner subreniform, 3 mm. long and 

 4 mm. broad; wings and keel-petals inserted near the base of the staminal tube; blades of the 

 wings obliquely ovate, 5 mm. long, the claws 2 mm. long; blades of the keel-petals obliquely 

 ovate, with a small basal lobe, 6 mm. long, the claws 1 mm. long; pod semirhombic-obovate, 

 pilose, sparingly glandular-dotted. 



Type locality: Deserted Rancho on the San Pedro, Sonora. 

 Distribution: New Mexico to Arizona, Sonora, and Nuevo Le6n. 



37. Parosela Orcuttii (S. Wats.) Parish, Bot. Gaz. 55: 305. 1913. 



Dalea Orcuttii S. Wats. Proc. Am. Acad. 20: 359. 1885. 



A perennial, branched from the base, slightly suffruticose below; stems ascending or de- 

 cumbent, 1-2 dm. high, strigose-canescent; leaves 1-2 cm. long; stipules minute, subulate; 



