GLEDIT3CHU. XLVII. LEGUMINOSiE. 237 



scattered hairs. Petioles channeled above, and distinguished by the pedicelled 

 gland near the base. Leaflets 1 — 2' by 4—9". Racemes in the upper axils, 

 forming a leafy panicle. Petals bright-yellow, 3 erect and 2 declined. In medi- 

 cine it is a mild cathartic. Aug. 



2. C. CiiAMiECRisTA. Soisitive Pea. Dwarf Cassia. 



St. erect or decumbent; Ifts. 8 — 12 pairs, oblong-linear, obtuse, mucronate ; 

 gland on the petiole subsessile ; /«.scic/cs of Jloiccrs supra-axillary, subsessile; 

 anthers 10, all fertile.—® An elegant plant, in dry soil, Mass. Mid. W. and S. 

 States. Stem i — 2f high, round, pubescent. Leaflets crowded, 4 — 8" by 1 — 2j", 

 smooth, subsessile. Flowers large, 2, 3 or 4 in each lascicle. Bracts lance- 

 subulate, as are also the .'Stipules, persistent. Petals bright yellow, the 2 upper 

 ones with a purple spot. Aug. — The leaves po.ssess considerable irritability. 



3. C. NiCTiTANS. Wild Sensitive Plant. 



St. erect or procumbent; ///.«. ij — 15 pairs, oblong-linear, obtuse, mucro- 

 nate, sessile; glaml an the petiole .slightly pedicellate; fls. small, 2 or 3 in each 

 supra-axillary, subsessile fascicle ; sta. 5, subcqual. — In dry sandy soils, Mass. 

 to La. Stem" about If long, slender, a little branching. Leaflets crowded, 4 — 

 6" by 1 — 2", common petiole 1 — 2' long, with the gland a line or two below the 

 -owest pair of leaflets, ^'lowers very small, pale yellow, on short pedicels. Jl. 

 — The leaves are quite sensitive, closing by night and when touched. 



36. GYMNOCLADUS. Lam. 



Gr. yvjivoi, naked, K\aSoi, a shoot; for its coarse, naked shoots in winter. 



Flowers 9 c?- c? Calyx tubular, 5-cleft, equal; petals 5, inserted 

 into the summit of the tube; stamens 10, distinct. 9 Calyx and 

 corolla as above : style 1 ; legumes 1 -celled, oblong, very large, pulpy 

 within. — A slnider^ unarmed iree,ioit/i nnequally biyinnatc Ivs. Lfis. 

 ovate, acuminate. 



G. Canadpinsis. Lam. Coffee Tree. _ 



Grows in Western N. Y., Ohio, la. 1 &c., on the borders of lakes and riv- 

 ers. Height 50f, with a trunk 15' diam., straight and simple to the height ot 

 25f, covered with a rough, scalv bark, and supporting a rather small, but regu- 

 lar head. The compound leaves are 2— 3f long, and 15—20' wide, bemg doubly 

 compounded of a great number of didl green leaflets. Smgle leaflets olten oc- 

 cupy the place of some of the pinna;. Flowers large and white, succeeded by 

 large, curving pods containing several hard, gray seeds. The wood is reddish, line- 

 grained and strong, and is valuable in architecture, and cabinet-work. May— Jl. 

 37. GLEDITSCHIA. 



In honor of John G. GlediL'sch, a botanical writer, Leipzig, about 1750. 



Flowers 9 5 c?. Sepals equal, 3—5, united at base ; petals 3—5 ; 

 stamens 3—5, distinct, opposite the sepals, sometimes by abortion 

 fewer or ; style short ; legume continuous, compressed, often inter- 

 cepted between the seeds by a quantity of sweet pulp. — Trees, toith 

 supra-axillanj, branched spines. Lvs. abruptly pinnate and bipinnate 

 ofteii in the same specimen. 



G. TRiACANTHUS. Honey Locust. 



Branches armed with stout, triple spines; Ifls. alternate, oblong-lanceo- 

 late, obtuse ; le^. linear-oblong, compressed, intervals filled with sweet pulp.— 

 This line tree, native from Pcnn. to Mo. and La,, is becoming common in cul- 

 tivation. In favorable circumstances it attains the height ol /01,_undiviclea naii 

 its length, with a diameter of 3— 4f. The thorns with which its branches are 

 armed^ in a most formidable manner, are 2-3' long, ligneous, often havm? - 

 secondarv ones branching from the sides. Foliage light and elegant, l^eaneis 

 about is; l-li'long, \ as wide, 1, 2 or 3 of them frequently translormcd, either 

 partly or whoflv, into smaller leaflets {{) 240, (3). Flowers small, white suc- 

 ceeded by flat, crooked, hanging pods I'i-18' long, of a dul red. Seeds flat, 

 hard, brown imbedded in a fleshv substance, at first .sweet but becomes sour, Jn. 



