76 NORTH AMERICAN FLORA [Volume 24 



57. Parosela Townsendii Rydberg, sp. nov. 

 A slender annual; stem 2-3 dm. high, sparingly pilose or glabrate; leaves ascending, 

 2-3 cm. long; stipules subulate-setaceous, 3-5 cm. long; rachis sparingly pilose; stipels obso- 

 lete; leaflets 7-9, reflexed, oblong, acute, 5-10 mm. long, glabrous above, sparingly silky-pilose, 

 obsoletely glandular-dotted beneath; peduncles terminal, 4-9 cm. long; spikes desne, 1-3 cm. 

 long, about 8 mm. thick; bracts ovate-lanceolate, pilose, acuminate, nearly black, with broad 

 white scarious margins, equaling the calyx; calyx-tube broadly campanulate, densely pilose, 

 obscurely glandular, 2 mm. long; lobes filiform from a broad triangular base, pilose-plumose; 

 corolla rose, with the claws and sometimes the whole banner yellowish; blade of the banner 

 orbicular-oval, about 2 mm. long, equaling the claw; blades of the wings obovate, with a large 

 rounded basal lobe, 2 mm. long, those of the keel-petals broader, with a small acute basal 

 lobe, 2.5 mm. long, the claws of both 1.5 mm. long; pod densely pilose above, becoming glabrate 

 near the base. 



Type collected in the Sierra Madre near Colonia Garcia, September 4, 1899, Townsend & 1 Barber 

 301 (U. S. Nat. Herb. no. 347124). 



58. Parosela inconspicua (S. Schauer) Rose, Contr. U. S. Nat. 

 Herb. 10: 105. 1906. 



?Dalea humilis G. Don, Gen. Hist. 2: 224. 1832. Not Psoralen humilis Mill. 1768. 

 IDalea herbacea Moc. & Sesse; G. Don, Gen. Hist. 2: 224, as synonym. 1832. 

 Dalea inconspicua S. Schauer, Linnaea 20: 744. 1847. 



A slender annual; stem 1-3 dm. high, branched, more or less silky; leaves spreading, 

 3-5 cm. long; stipules setaceous, 5-8 mm. long, somewhat silky; petiole about 1 cm. long; 

 rachis silky-pubescent, not glandular; leaflets 3-7 (rarely 9), from narrowly lance-linear to 

 oblanceolate, 5-15 mm. long, acute at both ends, sparingly silky on both sides; peduncles 

 opposite the leaves, 2-5 cm. long; spikes dense, 1-5 cm. long; bracts linear-lanceolate, attenu- 

 ate, 6-10 mm. long, longer than the calyx, green, slightly scarious-margined below; calyx- 

 tube turbinate, 2 mm. long, 10-ribbed, silky; lobes with a lanceolate base, filiform-attenuate, 

 4-5 mm. long, silky-plumose; corolla pinkish or white; blade of the banner rounded-cordate, 

 3 mm. long, the claw 3 mm. long; blades of the wings obliquely elliptic, with a rounded basal 

 lobe, 3.5-4 mm. long, those of the keel-petals broadly obliquely obovate, with a smaller basal 

 lobe, 3-3.5 mm. long, the claws of both 1 mm. long; pod silky-pubescent. 



Type locality: Oaxaca. 



Distribution: Jalisco to Puebla and Oaxaca. 



59. Parosela ervoides (Benth.) Rydberg. 



Dalea ervoides Benth.; Hemsl. Diag. PI. Nov. 6. 1S7S. 



A slender annual; stems 1-3 dm. high, sparingly appressed-silky, 1-3 dm. high, branched; 

 leaves 2-4 cm. long; stipules subulate-setaceous, about 2 mm. long; petiole 5-10 mm. long; 

 rachis sparingly silky, glandless; stipels obsolete; leaflets 3-5 (rarely 7), linear-lanceolate to 

 elliptic, acute at both ends, 6-15 mm. long, sparingly silky; peduncles opposite the leaves, 

 2-5 cm. long; spikes dense, 1-3 cm. long; bracts ovate-lanceolate, acuminate, silky-pubescent, 

 scarious-margined below; calyx-tube turbinate, 2 mm. long, silky, 10-ribbed; lobes with lan- 

 ceolate bases, filiform-acuminate, 2-2.5 mm. long; corolla pinkish or white; blade of the banner 

 cordate, rounded at the apex, 2 mm. long, shorter than the claw; blades of the wings elliptic, 

 with a rounded basal lobe, 2.5 mm. long, those of the keel-petals broadly obliquely obovate, 

 with a smaller basal lobe, 2.5 mm. long, the claws of both 1 mm. long; pod sparingly silky 

 above. 



Type locality: Real del Monte. Hidalgo. 



Distribution: Zacatecas and Jalisco to Puebla. 



60. Parosela filiformis (A. Gray) A. Heller, Cat. N. Am. PI. ed. 2. 

 6. 1900. 



Dalea filiformis A. Gray, PI. Wright. 2: 39. 1853. 



A slender glabrous annual; stem 1-2 dm. high, with ascending branches, filiform, sparingly 

 glandular-punctate; leaves 1.5-3 cm. long, ascending; stipules minute, subulate; petiole 5- 



