244 NORTH AMERICAN FLORA [Volume 24 



1. Benthamantha ochroleuca (Jacq.) Alef. Bonplandia 

 10:264. 1862. 



Catena ochroleuca Jacq. Ic. PI. Rar. 1: 1.5. 1786. 



Tephrosia ochroleuca Pers. Syn. PI. 2: 329. 1807. 



Cracca ochroleuca Benth. & Oerst. Vidensk. Meddel. 1853: 9. 1853. 



Brittonamra caribaea ochroleuca Kuntze, Rev. Gen. 165. 1891. 



A perennial, shrubby below; stem about 1 m. high, erect, terete, softly pubescent; stipules 

 subulate-setaceous, S— 10 mm. long; leaflets 5-7, oval or ovate, 1-3 cm. long, softly pilose, 

 mucronate; racemes about 1 dm. long, lax; bracts subulate; calyx pilose, the tube 2 mm. long, 

 the lobes subulate, 4 mm. long; corolla about 1 cm. long, ochroleucous, tinged with red; pod 

 glabrous, 3-5 cm. long, 3 mm. broad. 12-16-seeded. 



Type locality: Garden specimen raised from seeds of unknown origin. 

 Distribution: Peru to Panama. 

 Illustration: Jacq. Ic. PI Rar. pi. 150. 



2. Benthamantha panamensis Rydberg, sp. nov. 



A suffrutescent perennial; stem 3 dm. high or more; branches slightly silky-strigose when 

 young, soon glabrous, terete, green or tinged with purple; stipules setaceous, 3-5 mm. long; 

 leaves 5-S cm. long; rachis sparingly puberulent; leaflets 11-15, oblong or elliptic, 1-2.5 cm. 

 long. thin, sparingly silky-strigose above, more densely so beneath, green on both sides; stipels 

 setaceous-subulate, 1 mm. long; racemes 5-S cm. long, 5-10-flowered; peduncle pilose; bracts 

 setaceous, 5 mm. long, deciduous; calyx pilose, the tube 2 mm. long, the lobes subulate, atten- 

 uate, 4-5 mm. long; corolla 8-9 mm. long, the keel yellow, the wings slightly tinged with 

 purple, the banner rose, with purple veins; pod glabrous or slightly granuliferous. 



Type collected around Alhajuela, Panama, January 11 and 12, 1911, PlUier 2340* (U. S. Nat. 

 Herb. no. 67 6582). 



3. Benthamantha microphylla Rydberg, sp. nov. 



A shrub, 1.5 m. high; young branches sparingly silky-puberulent, in age glabrate, and 

 the second year ash-colored; stipules setaceous, 3 mm. long; leaves 1-2.5 cm. long; rachis 

 silky; leaflets 13-17, rounded-oval, 1-3 mm. long sparingly silky above, densely so and almost 

 white beneath; racemes 1-2 cm. long, 1-4-flowered; calyx silky, the tube 2 mm. long, the lobes 

 lance-subulate, 4 mm. long; corolla ochroleucous, 8-9 mm. long, the banner with brownish- 

 purple veins; pod 4-5 cm. long, nearly 3 mm. wide, puberulent, 14-17-seeded. 



Type collected at Rio Coajaguillo, Michoacan or Guerrero, February, 1899, Langlasse 830 

 (U.S. Nat. Herb. no. 385557). 



4. Benthamantha chiapensis Rydberg, sp. nov. 



A shrub, 6-10 dm. high; branches densely short-pilose when young, soon glabrous, light- 

 green, angled, grooved; stipules setaceous, 5-8 mm. long; leaves 4-6 cm. long; leaflets 11-17, 

 oval, rounded at each end, cuspidate. 6-15 mm. long, silky-pilose on both sides, densely so 

 beneath; stipels setaceous, 1 mm. long; racemes 5-8 cm. long, the peduncle densely pilose and 

 glandular, 5-10-flowered; calyx pilose, the tube 2 mm. long, the lobes subulate, attenuate, 

 4 mm. long; corolla about 1 cm. long, ochroleucous, the banner with brown-purple veins. 



Type collected near Jalisco, Chiapas, December 12, 1907, C. B. Doyle 50 (U. S. Nat. Herb. 

 no. 574700). 



* The same number in the herbarium of the New York Botanical Garden is dated May 12 to 15, 

 1911. 



