Part 2, 1920] FABACEAE: PSORALEAE 107 



149. Parosela involuta Rydberg, sp. nov. 



A shrub, 1 m. high or more; branches glabrous, sparingly and minutely glandular-dotted; 

 leaves 1.5-3 em. long; stipules subulate, 2 mm. long; rachis glabrous, glandular-dotted, mar- 

 gined; stipels gland-like; leaflets 11-15, linear, strongly involute, 3-5 mm. long, glabrous, 

 glandular-dotted beneath; spikes terminal, dense, eylindric, 2-4 cm. long, 1 cm. thick; rachis 

 densely short- villous; bracts narrowly lanceolate, long-silky, attenuate, equaling the calyx, 

 caducous; calyx-tube turbinate, 3 mm. long, densely silky-pilose, 10-ribbed, minutely glandular- 

 dotted between the ribs; lobes filiform from a lance-triangular base, plumose, 5 mm. long; 

 corolla light-rose or pink, or at first whitish; blade of the banner rhombic-cordate, 2.5 mm. 

 long, the claw 3 mm. long; blades of the wings 3.5 mm. long, those of the keel-petals 5 mm. 

 long, the claws of both 2 mm. long; pod densely pubescent. 



Type collected at Rio Blanco, Jalisco, 1886, Palmer 26 (herb. Columbia Univ.). 

 Distribution: Jalisco. 



150. Parosela Brandegei Rose, Contr. U. S. Nat. Herb. 

 10: 106. 1906. 



Dalea ramosissima Benth. Bot. Voy. Sulph. 11. 1844. Not 5. ramosissima Mart. & Gal. 1843. 

 Parosela ramosissima (Benth.) A. Heller, Cat. N. Am. PI. ed. 2. 6. 1900. 



A shrub, with spreading branches; twigs glabrous, densely glandular- tubercled, reddish, 

 in age becoming grayish; leaves 1.5-3.5 cm. long; stipules subulate-setaceous, 2 mm. long; 

 rachis glabrous, glandular-dotted; stipels gland-like; leaflets 11-13, obovate, obtuse or retuse, 

 glabrous, densely glandular-dotted beneath, 2-5 mm. long; spikes terminal, dense, eylindric, 

 3-5 cm. long, about 1 cm. thick; bracts lanceolate, sparingly pilose, conspicuously glandular- 

 dotted, dark, deciduous; calyx-tube broadly turbinate, 3 mm. long, 10-ribbed, with a row of 

 glands in each interval, densely pilose; lobes subulate-filiform from a lance-triangular base, 

 plumose, 3-4 mm. long, the lowest longest ; corolla rose-colored ; blade of the banner round- 

 reniform, 3 mm. long, 4 mm. broad, the claw 2 mm. long; blades of the wings 4 mm. long, 

 those of the keel-petals 5 mm. long; pod sparingly pilose and conspicuously glandular-dotted. 



Type locality: Bay of Magdalena, Lower California. 

 Distribution: Lower California. 

 Illustration: Benth. Bot. Voy. Sulph. pi. 10. 



XXXYI. Formosae. Glabrous shrubs, with glandular-dotted branches. Leaves short, 

 with few, rather crowded leaflets. Spikes short, few-flowered, at the ends of the branches; 

 bracts broad, conspicuously glandular-dotted. Calyx-tube pubescent, rather conspicuously 

 glandular in the intervals; lobes filiform from a triangular base, plumose, longer than the tube. 

 Corolla rose-colored with a yellowish banner. Wings and keel-petals inserted far below the 

 middle of the staminal tube, the keel much longer than the wings. Pod pilose and glandular 

 above, often glabrate below. 



151. Parosela Saffordii Rose, Contr. U. S. Nat. Herb. 

 12:273. 1909. 



A low shrub; branches short, glabrous, sparingly glandular-dotted; leaves 1-1.5 cm. long; 

 stipules broadly subulate, 2 mm. long, persistent; rachis glabrous, sparingly glandular-dotted; 

 stipels conic; leaflets 9-13, oblanceolate, spatulate or obovate, 2-3 mm. long, glabrous, glandu- 

 lar-dotted beneath, thickish, somewhat involute; spikes dense, subsessile or short-peduncled 

 at the ends of the branches, head-like; bracts lanceolate, acuminate, dark, glandular-dotted, 

 ciliate; calyx-tube turbinate, 3 mm. long, pilose, 10-ribbed, with a row of glands in each inter- 

 val; lobes filiform from a triangular base, 3 mm. long; corolla rose-colored; blade of the banner 

 rhombic-cordate, 3 mm. long, equaling the claw; blades of the wings 4 mm. long, those of the 

 keel-petals 5 mm. long, the claws of both 2-3 mm. long; pod pubescent. 



Type locality: Not given [probably in Coahuila]. 

 Distribution: Coahuila to Durango. 



