Order 46.— LEQUMINOS^E. 319 



low. Lfts. about 9" by 1", beautifully striate, and wavy at edge. Pods straight 



(always?) May, Jl. 



(3. gracilior. Nearly glabrous, slender; lfts. fjw, oblong (9" by C.) Plant 

 3 to 9' long. Pod small (15" long.) Fls. reddish purplo as above.— -Coving- 

 ton, La. (Hale.) 



41. INDIGOTERA, L. Indigo-plant. (Lat. Indigo, fero, to bear.) 

 Calyx with 5 acute segments ; vexillum roundish, emargiriatc ; keel 

 spurred each side, at length reflexed ; legume 2-valvcd, 1 to oo-seeded. 

 — Herbs or shrubs. Stip. small, distinct from the petiole. Fls. 

 cyanic. 



1 I. Caroliniana Walt. Herb erect, branched; lvs. unequally pinnate; lfts. 11 

 to 15, cblong-ovate, petiolulate; rae. slender, longer than the lvs.; lej. pendu- 

 lous, oblong, rugose, veiny, 2-seeded. — 21 Sandy woods, N. Car. (Dr. Porcher) to 

 Fla. St. 3 to If high. Lfts. 9 to 12" long, obtuse or rctuso. Eae. 3 1o G' long; 

 fls. pedicellate, yellowish-brown. Calyx pubescent, small, with 5 short, subulate 

 teeth. JL, Sept. 



2 I. leptosepala Nutt. Herbs decumbent, strigous, with ashy hairs ; lvs. un- 

 equally pinnate, lfts. 7 to 9, obovate-oblong, subsessile, nearly glabrous above; 

 rac. longer than the lvs., fls. nearly sessile ; leg. linear, reflexed, G to d-seeded. — 

 Ga. to Ark. St. 2 to Ct'long. Pis. pale scarlet. Pods l\' long, pointed. 



42. ROBIN'IA, L. Locust. (In memory of John Robin, herbalist 

 to Louis XIV.) Calyx short, campanulate, 5-cleft, the 2 upper seg- 

 ments more or less coherent; vexillum large; ala3 obtuse; stamens 

 diadelphous (9 & 1); style bearded inside; legume compressed, elon- 

 gated, many-seeded. — Trees and shrubs with stipular spines. Lvs. 

 unequally pinnate. Fls. showy, in axillary rac. 



1 R. P3eudacacia L. Common Locust. Branches armed with stipular 

 prickles; lfts. ovate and oblong-ovate ; rac. i>endulous, smooth, as well as the le- 

 gumes. — Native in Penn. and the more Southern and "Western State*, and abun- 

 dantly naturalized in N. Eng. Hight 30 to 80f, with a diam. of I to 3 or 4f. 

 The pinnate lvs. havo a beautiful symmetry of form, each composed of 8 to 12 

 pairs of lfts., with one at the end. Theso arc oval, thin, nearly sessile, and very 

 smooth, closing as if in sleep by night. Fls. in numerous, pendulous clusters, 

 diffusing an agreeable fragrance. Pod narrow, fiat, with 5 or 6 small, brown 

 seeds. When young the tree is armed with thorns, which disappear in its matur- 

 ity. Apr., May. — Tho wood is very hard and durable. 



2 R. viscosa Vent. Clammy Locust. Stipular spines very short ; branchlets, 

 petioles, and leg. glandular-viscid; lfts. ovate; rae. crowded, erect. — This beautiful 

 tree is native of the Mts. ofN. Car. to Ga., where it attains the hight of 40f. Tho 

 fls. numerous, rose-colored, in erect, axillary clusters, with tho thick, dark green 

 foliage, render this tree one of tho most brilliant ornaments of the park or tho 

 garden. Apr., Ju. 



3 R. hispida L. Rose Acacia. Stipular spines almost wanting, shrub mostly 

 hispid; rac. loose, suberect. — A beautiful fhrub, native of the Southern States, 

 much cultivated in gardens for the sako of its numerous, large, deep rose-colored 

 and very showy fls. Height 3 to 5 or 8f. Lfts. 5 or G pairs, broadly oval. Fls. 

 inodorous, twice larger than thos3 of the common locust. 



43. COLITTEA, L. Bladder Senna. Calyx 5-toothed; vexillum 

 with 2 callosities, expanded, larger than the obtuse carina; stigma 

 lateral, under the hooked summit of the style, which is longitudinally 

 bearded on the back side ; legume inflated, scarious. Shrubs with un- 

 equally pinnate lvs. 



C. arborescens L. Lfts. elliptical, refuse; vex. shortly gibbous behind. — A 

 hardy, free-flowering shrub, native of Italy, &c., growing almost alone on the 

 lummits of Mt. Vesuvius. Sts. 8 to 12f high. Lfts. aoout 9. Fls. large, yellow, 



