LEGUMINOS^E. (PULSE FAMILY.) 137 



17. D. ciliare, 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 (^'-l'long). — Dry hills and sandy fields: 

 common, especially southward. 



18. D. Marilandicum, Boott. Nearly smooth throughout, slender; 

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

 slender petiole: otherwise resembling the preceding. (D. obtiisum, DC.) — 

 Copses : common. 



■»-4-+- Stems reclining or prostrate: racemes loosely flowered. 



19. D. lineatum, DC. Stem minutely pubescent, striate-angled ; leaflets 

 orbicular, smoothish (£'- 1' long), much longer than the petiole; pod scarcely 

 stalked in the calyx. — Dry soil, Maryland (W. M. Canby), Virginia and 

 southward. 



20. LESPEDEZA, Mich. Bush-Clover 



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. Flowers often polygamous, in summer and autumn. (Dedicated to 

 Lespedez, the Spanish governor of Florida in the time of Michaux.) 

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

 or clustered ; with smaller pistillate and fertile but mostly apetalous ones inter- 

 mixed, or in subsessi/e little clusters. 



1. L. proctimbens, 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. — The apetalous 

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



2. L. rGpens, Torr. & Gray. Smooth, except minute close-pressed scattered 

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

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

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



3. L. violaeea, Pers. Stems upright or spreading, branched ; leaflets vary- 

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

 cence; peduncles or clusters few-flowered ; pods ovate. — The principal varieties 

 are, 1. divergens, with oval or oblong leaflets and loosely panicled flowers; 

 this runs into, 2. sessiliflora, with the flowers principally on peduncles much 

 shorter than the leaves, and clustered ; and a more distinct form is 3. angusti- 

 folia, with closely clustered flowers on jtraight branches, crowded leaves, and 

 narrowly oblong or linear leaflets, which are often silky. — Dry copses: com- 

 mon. — Pods ripening from both sorts of flowers. 



4. L. Stuvei, Nutt. Stems upright-spreading, bushy, downy; leaflets oval 

 or roundish, longer than the petiole, silky or white-woolly beneath (and some- 

 times above) ; clusters many-flowered, crowded ; pods ovate, downy. — Dry hills, 

 and sand, Plymouth, Mass. to Virginia, Michigan, and southward. — Appear- 

 ing intermediate between No. 3 and No. 5. 



L & M— 26 



