300 Obdbr 46.— LBQtrMINOS^. 



6. GYMNOC'LADUS, Lam. Coffee Tree. (Gr. yvfivbg, naked, 

 itXdSoq, a shoot; for its coarse, naked shoots in winter.) Flowers ? $. 

 t Calyx tubular, 5-cleft, equal ; petals 5, inserted into the summit of 

 the tube; stamens 10, distinct, ¥ Calyx and corolla as above; style 

 1 ; legumes 1-celled, oblong, very large, pulpy within. — A slender, un- 

 armed tree, with unequally bipinnate Ivs. Lfts. ovate, acuminate. 

 G-. Canadensis Lam. Grows in 'Western TS. T., Ohio, Ind. S. to Tenn., on the 

 borders of lakes and rivers. Height 50f; with a trunk 15' diam., straight and sim- 

 ple to the height of 25f; covered with a rough, scaly bark, and supporting a rather 

 small but regular head. The compound Ivs. are 2 to 3f long, and 15 to 20' wide, 

 being doubly compounded of a great number of dull green leaflets. Single leaf- 

 lets often occupy the place of some of tlie pinn^. Fls. greenish- white, in long 

 racemes, succeeded by very large curved pods containing each several round, 

 depressed, brown, pohshed, and very hard seeds. May — Jl. 



7.' GLEDITS'CHIA, L. Honey Locust. (For John G. Gleditsch, a 

 botanical writer, Leipzig.) Flowers % ^ i. Sepals equal, 3 to 5, 

 united at base ; petals 3 to 5 ; stamens 3 to 5, distinct, opposite the 

 sepals, sometimes by abortion fewer or ; style short, often abortive; 

 legume continuous, compressed, often intercepted between the seeds by 

 a quantity of sweet pulp. — Trees, with supra-axillary, branched spines. 

 Lvs. abruptly pinnate and bipinnate, often in the same specimen. Fls. 

 small, green, racemous. 



1 Or. triaodnthus L. Branches armed with stout, triple spines ; lfts. alternate, ob- 

 long-lanceolate, obtuse; leg. linear-oblong, compressed, miiny-seeded, intervala 

 filled with sweet pulp, — Penn. lo Mo. and La. In favorable circumstances it attains 

 the height of lOf, undivided half its length, with a diameter of 3 to 4f. The 

 thorns are 2 to 12' long, ligneous, numerously branched, forming horrid masses 

 along the trunk. Foliage hght and elegant. Lfts. about. 18, 1 to IJ' long, J as 

 wide, 1, 2 or 3 of them frequently transformed, either partly or wholly, into sm^er 

 leaflets (§ 290). Fls. succeeded by flat, twisted, hanging pods 12 to 18' long, of 

 a dull red. Sds. flat, hard, brown, imbedded in a fleshy substance, at first sweet, 

 but becoming sour. Jn. — The wood is very heavy. 



2 G. monosperma "Walt. "Water Looitst. Armed with few, slender, mostly 

 simple spines; lfts. ovate-oblong; leg. broadly oval, without pvip, one-seeded. — 

 Swamps, S. Car. to Pla. and La., not common. A tree of smaller dimensions than 

 the former, with a smoother bark. Pods about 2' long with the stipe, 1' wide. 

 Fls. greenish, in ament-like racemes like the other. Jn. 



8. CAS'SIA, L. Senna. (Hebrew, Katzioth.) Sepals 5, scarcely 

 united at base, nearly equal ; petals 5, unequal, but not papilionaceous ; 

 stamens distinct, 10, or by abortion fewer, anthers opening by terminal 

 pores, the three upper often sterile ; legume many-seeded, 1-celled or 

 many-celled transversely. — Trees, shrubs or herbs. Lvs. simply, abruptly 

 pinnate. 



§ Stam. 6 or 10, all perfect Sepals acute. Lfts. small Nos. 1, 2 



% Stam. 10, the 3 upper abortive. Sep. obtuse. Lfts. large, (a) 



a Gland on the petiole at or liear the base Nos. 3, 4 



a Gllaud on the rachis between the two lowest leaflets. ...Nos. 6,6 



1 C. Chamaecrista L. Sensitivb Pea. Lfts. 8 to 12 pairs, oblong-linear, 

 obtuse, mucronate ; fls. large, pediciUate, 2 or 4 in each fascicle ; awth. 10, un- 

 equal, all fertile.—® An elegant plant in dry soils, Mass., Mid., "W. and S. States. 

 St. J to 2f high, round, pubescent. Lfts. crowded, 4 to 8" by 1 to 2J", smooth, 

 subsessile. Fls. 15 to 18" broad. Bracts lance-subulate, as are also the sti- 

 pules, persistent. Petals bright yellow, the 2 upper ones with a purple spot. 

 Aug. — The leaves possess considerable irritability. 



2 C. nictitans L. "Wild Sensitive Plant. Lfts. 6 to 15 pairs, oblong-linear, 

 obtuse, mucronate, sessile; fls. small, 2 or 3 in each subsessile fascicle; sta. 5, sub- 



