5-22 



LEGUMLNOSAE (PULSE FAMILY) 



797. D. canadense. 



lanceolate or ovate-lanceolate, obtuse, with numer- 

 ous straightish veins, much longer than the petiole, 

 3.7-7.5 cm. long ; flowers showy, larger than in any 

 of our other species, 8-12 mm. long. (Meibomia 

 Ktze.) Open woods and banks of streams, N. B. 

 to N. C., L. Winnipeg, Kan., and Okla. FIG. 7!7. 



16. D. sessilifolium (Torr.) T. &G. Stem pubes- 

 cent, 6-12 dm. high ; leaves nearly sessile ; leaflets 

 linear or linear-oblong, blunt, thickish, reticulated, 

 rough above, downy beneath ; branches of the 

 panicle long ; flowers small. (Meibomia Ktze.) 



Sandy soil, s. e. Mass, to Pa. ; and from O. and Mich, to 111., s. to Miss. 



and Tex. 



*- -i- Stems ascending, 3-9 dm. high ; bracts small ; racemes or panicles elon- 

 gated and loosely flowered ; flowers small. 



17. D. rigidum (Ell.) DC. Stem branching, somewhat hoary, like the lower 

 surface of the leaves, with a close roughish pubescence ; leaflets ovate-oblong, 

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

 than the petiole. (Meibomia Ktze.) Dry hillsides, s. N. H. 



and e. Mass, to Fla., Mich., Neb., and La. FIG. 798. 



18. D. obtusum (Muhl.) 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, 1.2-2.5 cm. long. (D. ciliare DC. ; Meibomia 



obtusa Vail.) Dry hills and sandy fields, Mass, to Fla., w. to 793. D. rigidum. 

 Ont., Mich., Mo., and Tex. 



19. D. marilandicum (L.) DC. 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. (Meibomia 

 Ktze.) Copses, Mass, to Fla., w. to Minn., Mo., and La. 



*-+-<- Stems reclining or prostrate ; racemes loosely flowered. 



20. D. lineatum (Michx.) DC. Stem minutely pubescent, 

 B^ striate-angled ; leaflets orbicular, smoothish, 1-2.5 cm. long, 



-00 T\ v much longer than the petiole ; pod scarcely stalked in the calyx. 

 tyy. ir. imefttum. . -,.-., , -,%. ., v -t^ ., i -rr . -m * 



(Meibomia aremcola Vail.) Dry soil, Md. and Va. to Fla. and 



La. ; also (?) Erie Co., O. (Moseley). FIG. 799. 



39. LESPEDEZA Michx. BUSH CLOVER 



Calyx 5-cleft ; the lobes nearly equal, slender. Stamens diadelphous (9 and 

 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. 

 Herbs with pinnately 3-foliolate leaves, not stipellate. Flowers often polyga* 

 mous, in summer and autumn. (Dedicated to Lespedez, the Spanish governor of 

 Florida in the time of Michaux.) 



a. Stipules subulate-setaceous ; bracts minute ; calyx -lobes attenuate ; 



perennials b. 



b. Flowers of 2 kinds ; the larger (violet-purple) perfect hut seldom 



fruitful, racemose or panicled ; the smaller pistillate and fertile 



but mostly apetalous, in small sessile clusters or intermixed with 



the others c. 



c. Petaliferous flowers 1-6, on elongate filiform peduncles, which re 



mostly 2-4 times as long as their subtending- leaves. 



Stems soft-downy with short spreading; hairs . . . . .1. L. procumbent. 

 Stems glabrate or sparingly appressed-pubesoent. 



Stems prostrate or trailing ; stipules mostly 24.5 mm. long . 2. L. rrptnt. 

 Stems upright ; stipules mostly 5-8 mm. long .... 8. L. violacta. 

 c. Petaliferous flowers few-many ; peduncles stouter, some or all of 



them shorter than the leaves d. 



d. Many of the peduncles elongate and exceeding their subtending 

 leave*. 



