Part 1, 1919] FABACEAE: PSORALEAE 53 



7. Parosela Holwayi Rose, Contr. U. S. Nat. Herb. 8: 304. 1905. 



A perennial; stem branched at the base, diffuse, decumbent, or prostrate, sparingly pubes- 

 cent on the younger parts, purplish; leaves spreading, 2-3 cm. long; stipules lance-subulate, 

 2 mm. long; petioles short; rachis sparingly puberulent, glandless; leaflets 9-23, oblong or el- 

 liptic, glabrous or nearly so, glandless, 2-3 mm. long; peduncles 2-3 cm. long, slender; racemes 

 short and dense, almost head-like; bracts small, ovate, glabrous; pedicels about 0.5 mm. long; 

 calyx-tube strongly 10-angled, pubescent on the angles and with a row of glands between 

 them, 3 mm. long; lobes oblong, obtuse, shorter than the tube, green; banner yellowish, the 

 blade rounded-obovate in outline, sinuate, scarcely 2 mm. long, the claw 1 mm. long; wings 

 purple, the keel-petals purple but yellowish along the lower edge ; blades of the wings and keel- 

 petals 3-3.5 mm. long, the claws scarcely 1 mm. long; pod shorter than the calyx, pubescent 

 and glandular-punctate, broadly obliquely obovate, with an upcurved short beak. 



Type locality: Iguala. Guerrero. 

 Distribution : Guerrero and Morelos. 



8. Parosela chrysorhiza (A. Gray) Rose, Contr. U. S. Nat. Herb. 



8: 304. 1905. 



Dalea chrysorhiza A. Gray, Proc. Am. Acad. 5: 156. 1861. 



Apparently annual, with a deep orange root, branched at the base; stems many, diffusely 

 procumbent, filiform, very sparingly pilose or glabrous; leaves spreading, 1-2 cm. long; stipules 

 lanceolate, ciliate, 3 mm. long; rachis usually with a few scattered hairs; stipels minute, subu- 

 late; leaflets 15-21, oblong-cuneate, 2-3 mm. long, emarginate, glandular-punctate and with a 

 few scattered hairs on the veins beneath, the terminal gland usually conspicuous; peduncles 

 1-3 cm. long, slender; racemes very short, few-flowered; bracts ovate, glabrous, slightly punc- 

 tate, caducous; calyx canescent; tube turbinate, strongly 10-ribbed, scarcely 1.5 mm. long; 

 lobes oblong-lanceolate, nearly equaling the tube, glandular-apiculate; corolla purple; blade of 

 the banner reniform, 1.5 mm. long, nearly 2.5 mm. broad, the claw 1.5 mm. long; blades of the 

 wings and keel-petals fully 3 mm. long, the claws 1.5 mm. long; pod broadly obliquely obovate, 

 slightly concave on the back, hirsutulous and conspicuously glandular, with an incurved beak, 

 shorter than the calyx. 



Type locality: Cape San Lucas, Lower California. 

 Distribution: Cape region of Lower California. 



9. Parosela Goldmani Rose, Contr. U. S. Nat. Herb. 8: 305. 1905. 

 A perennial, suffruticose below; stem branched, 3-5 dm. high or more, short-hirsute, be- 

 coming glabrate in age, reddish, glandular-punctate; leaves ascending, 3-5 cm. long; stipules 

 subulate, 3-4 mm. long; petioles 2-3 mm. long; rachis hirsutulous; stipels subulate, minute; 

 leaflets 15-35, short-oblong or elliptic, obtuse, 3-4 mm. long, white-hirsute on both sides; pe- 

 duncles 1.5-2 cm. long, hirsutulous; racemes rather dense, 2-4 cm. long; bracts lanceolate, acu- 

 minate, pubescent; calyx densely hirsute; tube turbinate, strongly 10-ribbed, 2 mm. long; 

 lobes lanceolate, acute, the 4 upper nearly equaling the tube, the lowest one a little longer; 

 corolla dark bluish-purple; blade of the banner subreniform, 2 mm. long, nearly 4 mm. broad, 

 the claw 1.5 mm. long; wings and keel-petals inserted slightly below the middle of the staminal 

 tube, the blades 5 mm. long, the claws 2 mm. long; pod shorter than the calyx, obliquely obo- 

 vate, hirsutulous and glandular on its upper half, with an ascending beak. 



Type locality: Sierra de Choix, Sinaloa. 

 Distribution: Known only from the type locality. 



10. Parosela peninsularis Rose, Contr. U. S. Nat. Herb. 8: 304. 

 1905. 



Dalea canescens Benth. Bot. Voy. Sulph. 12. 1844. Not D. canescens Mart. & Gal. 1843. 



A slender annual; stems many, diffusely branched, prostrate or reclining, 1-5 dm. long, 

 white-hirsutulous; leaves spreading, 1-2 cm. long; stipules subulate, 2 mm. long; petioles 2-3 



