GLEDITSCHIA. XLVII LEGUMINOSZ. 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. Cuamacrista. Sensitive Pea. Dwarf Cassia. 
_ St. erect or decumbent; /fts. 8—12 pairs, oblong-linear, obtuse, mucronate ; 
giand on the petiole subsessile; fascicles of flowers supra-axillary, subsessile ; 
anthers 10, all tertile——@) An elegant plant, in dry soil, Mass. Mid. W. and S. 
States. Stem 4—2f high, round, pubescent. Leaflets crowded, 4—8” by 1—24”, 
smooth, subsessile. Flowers large, 2,3 or 4 in each fascicle. Bracts lance- 
subulate, as are also the stipules, persistent. Petals bright yellow, the 2 upper 
ones with a purple spot. Aug.—The leaves possess considerable irritability. 
3. C. nictirans. Wild Sensitive Plant. 
St. erect or procumbent; /fts. 6—15 pairs, oblong-linear, obtuse, mucro- 
nate, sessile; gland on the petiole slightly pedicellate; fls. small, 2 or 3 in each 
supra-axillary, subsessile fascicle ; sta. 5, subequal.—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. Flowers very small, pale yellow, on short pedicels. Jl. 
—The leaves are quite sensitive, closing by night and when touched. 
36.GYMNOCLADUS. Lam. 
Gr. yvpvos, naked, x\ados, a shoot; for its coarse, naked shoots in winter- 
Flowers 2c. & Calyx tubular, 5-cleft, equal; petals 5, inserted 
into the: summit of the tube; stamens 10, distinct. Q Calyx and 
corolla as above; style 1; legumes 1-celled, oblong, very large, pulpy 
within.—A slender, unarmed tree, with unequally bipinnate los. Lfts. 
ovate, acuminate. | 
G. Canapensis. Lam. Coffee Tree. ‘ 
Grows in Western N. Y.; Ohio, Ia.! &c., on the borders of lakes and riv- 
ers. Height 50f, with a trunk 15’ diam., straight and simple to the height of 
25f, covered with a rough, scaly bark, and supporting a rather small, but regu- 
lar head. The compound leaves are 2—3f long, and 15—20/ wide, being doubly 
compounded of a great number of dull green leaflets. Single leaflets often oc- 
cupy the place of some of the pinne. Flowers large and white, succeeded by 
large, curving pods containing several hard, gray seeds. The wood is reddish, fine- 
grained and strong, and is valuable in architecture, and cabinet-work. May—Jl. 
37. GLEDITSCHIA. 
In honor of John G. Gleditsch, a botanical writer, Leipzig, about 1750. 
Flowers 2 % &.Sepals equal, 3—5, united at base; petals 3—5 ; 
stamens 3—5, distinct, opposite the sepals, sometimes by abortion 
fewer or 0; style short; legume continuous, compressed, often inter- 
cepted between the seeds by a quantity of sweet pulp.—Tvees, with 
supra-azillary, branched spines. Lvs. abruptly pinnate and bpinnate 
often in the same specimen. 
G. TRIacanTHus. Honey Locust. 
Branches armed with stout, triple spines; J/ts. alternate, oblong-lanceo- 
late, obtuse; leg. linear-oblong, compressed, intervals filled with sweet pulp.— 
This fine tree, native from Penn. to Mo. and La., is becoming common in cul- 
tivation. In favorable circumstances it attains the height of 70f, undivided half 
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 having 2 
secondary ones branching from the sides. Foliage light and elegant. Leaflets 
about 18, 1—14/ long, } as wide, 1, 2 or 3 of them frequently transformed, either 
partly or wholly, into smaller leaflets WN 6). Flowers small, white, suc- 
ceeded by flat, crooked, hanging pods 12—18' long, of a dull red. Seeds flat, 
hard, brown, imbedded ina fleshy substance, at first sweet but becomes sour. Jn, 
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