300 Order 46.— LEGUMINOS^E. 



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

 kXciSoc, a shoot; for its coarse, naked shoots in winter.) Flowers ? <?. 

 $ 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 lvs. Lfts. ovate, acuminate. 



G. Canadensis Lam. Grows in Western X. Y., Ohio, Iud. S. to Tenti., on tho 

 borders of lak^s and rivers. Height 50f, with a trunk 15' diam., straight, and sim- 

 ple to tho height of 25f, covered with a rough, scaly bark, aud supporting a rather 

 small but regular head. Tho compound lvs. 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 tho placo of somo of the pinnae. Fls. greenish- white, in long 

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

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



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

 botanical writer, Leipzig.) Flowers ? £ <?. 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 0; 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 ar.d bipinnate, often in the same specimen. Fls. 

 small, green, racemous. 



1 G. triacanthus L. Branches armed with ttout, triple spines ; lfts. alternate, ob- 

 long-lanceolate, obtuse; lej. linear-oblong, compressed, many-seeded, intervals 

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

 tho height of 7011 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 truik. Foliage light and elegant. Lfts. about 18, 1 to H' long, ^-as 

 wide, 1, 2 or 3 of them frequently transformed, either partly or wholly, into smaller 

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

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

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



2 G. moaosperma Walt. Water Locus r. Armed toith few, slender, mostly 

 simple, spines; lft.3. ovate-oblong; li'j. broadly oval, without p>ulp, cne-teeded. — 

 Swamps, S. Car. to Fla. an:l La., not common. A tree of smaller dimensions than 

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

 Fls. greenish, in ameut-like raceme3 like the other. Jn. 



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

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

 Btamens 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. 



§ Stum. . r > or 10, all perfect Sepals acute. Lfts. small Nos. 1, 2 



§ Stam. 10, the 3 uppei abortive. Sep. obtuse. Lfts. large, (a) 



a Gland on the petiole at or near th • base Nos. 3, 4 



a Gland on the mollis between the iwo lowest leaflets Nos. f>, 6 



1 C. Chamaecrista L. Sensitive Pea. Lfis. S to 12 pairs, oblong-linear, 

 obtuse, mucronate ; fls. large, pedicillate, 2 or 4 in each fascicle ; anth. ] 0, un- 

 equal, all fertile. — 3) An elegant plant in dry soils, Mass., Mid., W. and S. States. 

 St i to 2f high, round, pubescent. Lfts. crowded, 4 to 8'' by 1 to 2\", 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-linoar, 

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



