Obdbb 46.— LEGUMINOS^. 301 



eqwil — In dry, eandy soils, Masa to La. St. about If long, slender, branching. 

 Lfia. crowded, 4 to 6" by 1 to 2''. The petiolar gland, aa in No. 1, placed 2 or 3" 

 below the lowest pair of leaflets. Fls. very small (5'' broad), pale yellow, on 

 short pedicels. Jl. — The leaves are quite sensitive, closing by night and when 

 touched. 



3 C. Marildndioa L. American Senna. Perennial, smooth ; Ifts. 6 io pairs, 

 oblong-lanceohte, mucronate, mi obovoid gland near the base of the common petiole ; 

 fi3. in axiUary racemes and terminal panicles ; leg. curved, 12 io 20-eeeded. — This 

 liandsomo plant ii frequently met with in alluvial soils (jj. S.) growmg in dose 

 mass-OS, 3 to 5f high. St. round, striate, often with scattered hairs. Petioles 

 channeled above, and distinguished by the pedicelled gland near the base. Lfls. 

 1 to 2' by 4 to 9". Kacemes in the upper axils, forming a leafy panicle. Petals 

 bright yellow, i! erect and 2 declined. In medicine it is a mild cathartic. Aug. 



4 C. occidentaliB L. Annual, smooth; Ifts. 3 io 6 pairs, ovate or lance-ovak. 

 sharply acuminate ; an obtuse, sessile gland at the base of the petiolo ; fla. in axil- 

 lary, short racemes, and panicled above; leg. nearly straight, 25 to iO-seeded. — 

 Waste grounds, Va. to Ga. (Feay), and La. Stem stout, sulcato, 4 to 6f high. 

 Lvs. 7 to 8' long, Ifts. 2 to 3'. Stip. deciduous. Fls. large, yellow. Pods strongly 

 margined, rigid, torulous. July. § Cuba. 



5 C. obtusifdlla L. Annual, smoothish ; Ills, about 6, obovate, obtuse ; stip. 

 linear-subulate ; leg. very long and narrow, recurved, 20 to 40-s6eded ; seeda 

 longitudinal. — Dry soils, .->. Car. to Fla. and La. Plant 1 to 3 to 4f high. St. 

 round, striate. Lv3. 1 to 2' long, half as wide. Pods about 6' long, hardly 2" 

 wide, the seeds longest, the same way with the pod, not transversely as in No. 4. 

 Fls. large, on slender pedicels. Jl. — Oct. 



6 C. melanoc^rpa Vegel. Shrubby; lfls. 2 or 3 pau's, narrowly lanceolate, 

 rather acute at each end, coriaceous; gland pedicellate; rac. pedunculate, in the 

 upper axils, as long as the leaves. — Ga. Escaped from gardens (Feay). Lft-s. 

 12 to 18" by 4 to 5"- Fls. as large as in C Marilandica. § 



9. CER'CIS, L. JrDAs Tree. Red-bud. (Gr. icsQiclg, a weaver's 

 sliiitllc ; se. tho legumes.) Calv.x broadly campanulate, 5-tootlied ; 

 petals scarcely papilionaceous, all distinct ; wings longer than the vex- 

 jliuni and smallei' than the k(;cl petals ; stamens 1 0, distinct ; legume 

 compressed, with the seed-bearing suture winged ; seeds obovate.-— 

 Trees with simple, cordate lvs. and rose-colored fls. 



C. Canadensis L. Lvs. broadly ovate-cordate, acuminate, villous on the veins 

 beneath. — A handsome tree, 20 to 30f high. Mid. and W. States. The wood is 

 finely veined with black and green, and receives a fine pohsh. Lvs. 3 to 4' by 4 

 to 5', entire, smooth, 7-veined, on petioles 1 to 2' long. The flowers appear in 

 advance of the leaves, in small, lateral clasters, clothing the whole tree in pur- 

 ple, in early Spring. The young twigs will dye wool a nankeen color. The old 

 author Gerarde in compliance with the popular notion of his time, says "This i.=i 

 the tree whereon Judas did hang himself, and not on tho elder tree, aa it is said." 



10. CLADASTRIS, Raf. Yellow-wood. Calyx 5-toothed, teeth 

 abort, obtuse ; petitls of nearly equal length, those of the keel distinct 

 and straight like the wings; vex. large, roundish, refloxed; staro. 10, 

 distinct ; filaments glabrous, incurved, legume flat and thin, short-stiped, 

 5 or 6-seeded. — A tree with yellow wood, pinnate lvs., and pendulous 

 clusters of white fls. 



C. tinctoria Raf. Hills, in rich soils. W. Ky. and W. Tcnr. Tree 20 to 40f 

 high, with a smooth greenish bark. Lfls. 1 to 11, stalked, oval, acuminate, 3 to 

 4' long. Rac. 6 to 10' long, compound, thyrae-hke, showy, resembling those of 

 tho common locust.. Leg. as long as the leaflets, very narrow. Apr., May. 



11. BAPTIS'IA, Vent. Wild Indioo. (Gr. pd-rrru, to dye ; a use 

 to which some species are applied.) Calyx 4 to 5-clcft half way, per- 



