Part 2, 1920] FABACEAE: PSORALEAE 65 



oblong, rounded at the apex, with a rounded basal lobe, 2 mm. and 3 mm. long respectively, 

 the claws respectively 1.5 mm. and 2 mm. long. 



Type collected at Las Vegas Wash, Nevada, April 22, 1905, Goodding 2237 (herb. N. Y. Bot. 

 Gard.). 



Distribution: Southern Nevada and southern California. 



44. Parosela neomexicana (A. Gray) A. Heller, Cat. N. Am. PI. 



ed. 2. 6. 1900. 



Dalea mollis ? tieo-mexicana A. Gray, PI. Wright. 1: 47. 1852. 



A perennial, with a slender root; stem branched from the base, decumbent or prostrate, 

 1-2 cm. long, densely short-villous, almost velutinous; leaves 1.5-3 cm. long; stipules subulate, 

 minute; petioles 3-6 mm. long; rachis densly short-villous; leaflets 7-11, obovate, retuse, 

 densely villous, glandular-dotted, 3-S mm. long; peduncles opposite the leaves, 2-3 mm. long; 

 racemes dense, 1-2 cm. long; bracts narrowly lanceolate, acuminate, scarcely longer than the 

 calyx, Iong-villous; calyx-tube turbinate, strongly 10-ribbed, densely silky-villous, 3 mm. long; 

 lobes about 5 mm. long; corolla mostly yellowish with purple- or rose-tinged keel, rarely rose- 

 colored; blade of the banner broadly cordate, 3.5 mm. long, acute conspicuously glandular- 

 dotted towards the base, equaling the claw; blades of the wings obliquely obcuneate-ovate, 

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

 with a rounded basal lobe, 4 mm. long, the claws of both 2-3 mm. long; pod villous. 



Type locality: Hills west of the Pecos, Texas. 



Distribution: Western Texas, Chihuahua, Coahuila, and Tamaulipas. 



45. Parosela mollis (Benth.) A. Heller, Cat. N. Am. PI. ed. 2. 6. 



1900. 



Dalea mollis Benth. PI. Hartw. 306. 1848. 



A perennial, with a rather slender root; stem branched at the base, 1-2 dm. long, densely 

 pilose, spreading; leaves spreading, 1-3 cm. long; stipules subulate, minute; rachis sparingly 

 pilose and glandular-dotted; leaflets obovate, truncate or emarginate, 3-6 mm. long, densely 

 silky-pilose, almost canescent; peduncles 1-3 cm. long; racemes dense, 1-2 cm. long; bracts 

 narrowly lanceolate, rather shorter than the calyx, silky-pilose, somewhat glandular-dotted; 

 calyx-tube 1.5 mm. long, equaling the filiform lobes; corolla white, tinged or tipped with rose- 

 purple; blade of the banner cordate, rounded at the apex, 1.5 mm. long, equaling the claw; 

 blades of the wings 2 mm. long, retuse at the apex, those of the keel-petals 2.5 mm. long, 

 rounded at the apex, the claws respectively 1 mm. and 1.5 mm. long. 



Type locality: "Monterey, California" [but more probably on the road from Mexico to 

 Monterey, in Sonora or southern California]. 



Distribution: Southern California, southwestern Arizona, Sonora, and Lower California. 



46. Parosela erythrorhiza (Greenman) Rose, Contr. U. S. Nat. 

 Herb. 10: 105. 1906. 



Dalea erythrorhiza Greenman, Zoe 5: 185. 1904. 



A herbaceous perennial, w T ith a red woody root; stems several from the base, decumbent 

 or prostrate, branched, glabrous, reddish, glandular-tuberculate; leaves spreading, 1.5-6 cm. 

 long; stipules minute, subulate; petioles 1-2 cm. long; rachis sparingly pubescent, conspicuously 

 glandular-tuberculate; leaflets 7-15, obovate, 3-10 mm. long, retuse, glabrous, light-green 

 above and paler and glandular-dotted beneath; peduncles opposite the leaves, 1-4 cm. long; 

 racemes dense, 1-4 cm. long; bracts ovate, acuminate, 7-8 mm. long, glabrous, glandular-dotted, 

 often purplish, scarious-margined, caducous; calyx-tube turbinate, 3 mm. long, strongly 10- 

 ribbed; lobes equaling the tube; corolla dark-blue; blade of the banner broadly ovate, sub- 

 cordate, 3.5 mm. long, the claw 2 mm. long; blades of the wings and keel-petals 3 mm. long, 

 with a rather indistinct rounded basal lobe, the claws 2 mm. long; pod silky-villous. 



Type locality: Near the city of Durango. 

 Distribution: Durango, Zacatecas, and Aguascalientes. 



