Part 4, 1924] FABACEAE: GALEGEAE 



28. BENTHAMANTHA Alef. Bonplandia 10: 264.1862. 



Tephrosia § Craccoides DC. Mem. Leg. 267. . 1823. 

 Cracca Benth.; Benth. & Oerst. Vidensk. Medd. 1853: 

 Brittonamra Kuntze. Rev. Gen. 164. 1891. 



8. 1853. Not Cracca L. 1753. 



Suffrutescent perennials. Leaves odd-pinnate, with stipules and stipels. Flowers in 

 axillary racemes; bracts subulate or setaceous, caducous. Calyx with a campanulate tube 

 and 5 subequal lobes, with setaceous or subulate acuminations. Corolla yellowish or white, 

 the petals subequal. Banner clawed, the blade orbicular or reniform, with reflexed margins. 

 Wings clawed, with oblong blades, free. Keel-petals broadly obliquely obovate, acute or acum- 

 inate, united to the apex. Stamens diadelphous. Ovary sessile, many-ovuled; style rigid, 

 inflexed, longitudinally bearded above; stigma capitate. Pod linear, flat, 2-valved, conspic- 

 uously constricted between the seeds externally, internally with cross-partitions between the 

 seeds. Seeds subrectangular or subquadrate in outline, without strophiole. 



Type species, Tephrosia ochroleuca Pers. 



Plants fruticose or suffruticose, with erect branches. 

 Leaflets 5-27. 



Calyx-lobes, at least the lowest one, nearly twice as long as the tube. 

 Pod glabrous. 



Leaflets 5-7, softly pilose; stem softly pubescent. 1. B. ochroleuca. 



Leaflets 11-15, strigose; stem glabrous or nearly so. 2. B. panamensis. 



Pod pubescent. 



Leaflets 11-17, rounded-oval, 1-3 mm. long. 3. B. microphylla. 



Leaflets oblong to oval, more than 5 mm. long, usually more 

 than 1 cm. long. 

 Stem with spreading pubescence. 



Leaflets 11-17, usually less than 1.5 cm. long; peduncles 

 more or less glandular. 

 Branches short-pilose; corolla 1 cm. long or more. 4. B. chiapensis. 



Branches long-pilose; corolla about 9 mm. long. 5. B. bicolor. 



Leaflets 7-11, rarely 13, 1-4 cm. long, usually more than 

 1.5 cm. long, especially the upper leaflets; peduncles 

 not glandular. 6. B. mollis. 



Stem with appressed pubescence. 



Corolla 10-12 mm. long; leaflets 11-25. 7. B. carihaea. 



Corolla 6-8 mm. long; leaflets 9-13. 



Leaflets elliptic or oblong, 1-3 cm. long; corolla 7-8 



mm. long. 8. B. Brandegei. 



Leaflets lanceolate or ovate, often 4—7 cm. long; corolla 



6 mm. long. 9. B. micrantha. 



Calyx-lobes only slightly longer than the tube. 



Leaflets 13-21, less than 1.5 cm. long, sparingly pilose along the 



margins and the veins; pod puberulent. 15. B. glabella. 



Leaflets 7-13, uniformly pubescent. 



Pod puberulent; stem sparingly pilose with spreading hairs; 



leaflets 1-3.5 cm. long. 10. B. Wrighlii. 



Pod glabrous; stem pubescent with ascending or appressed hairs. 

 Stem and lower surface of the leaves sparingly strigose, 



green on both sides. 1 1. B. Painteri. 



Stem and lower surface of the leaves silky-canescent. 12. B. Edwardsii. 



Leaflets 3. 



Leaflets oval, rounded at the apex; racemes 3-5 cm. long. 13. B. Irifoliolala. 



Leaflets lanceolate or elliptic-ovate, acutish; racemes 2 cm. long or 



less. 14. B. robusla. 



Plants herbaceous, perennial, low, spreading, 1-2 dm. high; roots fusiform- 

 thickened or tuber-bearing; corolla 6—8 mm. long. 

 Leaflets 11-21; root elongate-fusiform. 



Pod puberulent; leaflets 13-21. 15. B. glabella. 



Pod glabrous; leaflets 11-15. 16. B. pumila. 



Leaflets 3-9; roots with small tubers. 

 Leaflets 5-9. 



Corolla ochroleucous, 8 mm. long; calyx-lobes longer than the tube. 17. B. glandulosa. 

 Corolla ochroleucous, with purplish banner, 6 mm.-long; calyx-lobes 



equaling the tube. 18. B. luberosa. 



Leaflets 3-5; corolla cream-white; calyx-lobes nearly twice as long as 



the tube. 19. B. Creenmanii. 



