leguminosjE. (pul8e family.) 101 



*-•!- (Stems ascending (l°-3° high): bracts small; racemes or parades elongated 

 and looseli/ Jlowa'ed : flowers small. 



15. D. rigidum, DC. Stem branching, somewhat hoary, like the lower 

 surface of the leaves, with a close roughish pubescence; leaflets cvaterohhng, 

 blunt, thickish, reticulated-veiny, rather rough above, the lateral ones longer than 

 the petiole. — Diy hill-sides, Maes, to Michigan, Illinois, and southward. Aug. 

 — Intel-mediate, as it were, between No. 16 and No. 10. 



16. !>• ciliiire, DC. Stem slender, hairy or rough-pubescent ; leaves crowded, 

 on very short hairy petioles ; leaflets round-ovate or oval, thickish, more or less hairy 

 on the margins and underneath (J' -1' long). — Dry hills and sandy fields; 

 common, especially southward. Aug. 



17. D. niarilsilldicuin, Boott. Nearly smooth throughout, slender; 

 leaflets ovate or roundish, very obtuse, thin, the lateral ones about the length of the 

 slender petiole: otherwise as No. 16. (D. ohtusum, DC.) — Copses, common. 

 July - Sept. 



■»-■*-■*- Stems reclining or prostrate: racemes loosely flowered. 



18. D. lineiktuin, DC. Stemminutelypubescent,striate-angled; leaflets 

 orbicular, smoothish (^'-I'long), much longer than the petiole; pod not 

 stalked. — Vu-ginia and southward. 



IS. IiESPEDilZA, Michx. Bush-Cloter. 



Calyx 5-cleft, the lobes nearly equal, slender. Stamens diadelphous (9 & 1 ) : 

 anthers all alike. Pods of a single 1-seeded joint (sometimes 2-jointed, with 

 the lower joint empty and stalk-like), oval or roundish, flat, reticulated. — 

 Perennials with pinnately 3-foliolate leaves, not stipellate. Stipules and bracts 

 minute. Plowers often polygamous. (Dedicated to Lespedez, the Spanish 

 governor of Florida when Michaux visited it.) 

 * Flowers of two sorts, the larger (violet-purple) perfect, but seldom fruitful, panicled 



or clustered; with smaller pistillate and fertile but mostly apetalous ones intermixed, 



or in subsessile little clusters. 



1. li. procumliens, Michx. Soft-downy, except the upper surface of 

 the leaves, trailing, slender ; leaflets oval or elliptical ; peduncles slender, mostly 

 simple, few-flowered. — Sandy soil, commonest southward. Aug. — The apet- 

 alous fertile flowers, as in the rest, have short hooked styles. 



2. Li. repens, Torr. & Gray. Smooth, except minute close-pressed scattered 

 hairs, prostrate, spreading, very slender; leaflets oval or obovate-elliptical (4' 

 long); peduncles slender and few-flowered; pods roundish. — Dry sandy soil, 

 S. New York to Kentucky and southward. — Much like the last. 



3. I/, violacea, Pers. Stems upright or spreading, branched; leaflets 

 varying from oval-oblong to linear, whitish-downy beneath with close-pressed 

 pubescence; peduncles or dusters few-flowered ; pods ovate. — The principal vari- 

 eties are, 1. divergisns, with oval or oblong leaflets and loosely panicled 

 flowers ; this runs into, 2. SBSSiLirtdEA, with the flowers principally on pe- 

 duncles much shorter than the leaves, and clustered; and a more distinct form 

 is, 3. an6U8Tii'6lia, with closely clustered flowers on straight branches, 



9* 



