ORDER 46. LEGUMIXOS.-E 319 



low. Lfts. about 9" by 7'', beautifully striatc, and wavy at edge. Pods straight 



(always?) May, JI. 



/3. GRACILIOR. Nearly glabrous, slender; Ifts. few, oblong (9" by 3''.) Plant 

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

 ton, La. (Hale.) 



41. INDIGO'FERA, L. INDIGO-PLANT. (Lat. Indigo, fcro, to bear.) 

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

 spurred each side, at length reflexed ; legume 2-valved, 1 to oo-seedcd. 

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

 cyanic. 



1 I. Caroliniana "Walt. Herb erect, branched ; Ivs. unequally pinnate ; Ifts. \ 1 

 to 15, oblong-ovate, petiolulate; rac. slender, longer than the Ivs.; leg. pendu- 

 lous, oblong, rugose, veiny, 1-seeded. 'l^ Sandy woods, N. Car. (Dr. Porcher) to 

 Fla. St. 3 to 7f high. Lfts. 9 to 12" long, obtuse or retuse. Rac. 3 to 6' long; 

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

 teeth. JI., Sept. 



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

 equally pinnate, Ifts. 7 to 9, obovate-obloug, subsessile, nearly glabrous above ; 

 rac. longer than the Ivs., fls. nearly sessile ; leg. linear, reflexed, 6 to ^-seeded. 

 Ga. to Ark. St. 2 to 3f long. Fls. pale scarlet. Pods l\' long, pointed. 



42. ROBIN'IA, L. LOCUST. (In memory of JOHN ROBIN, herbalist 

 to Louis XIV.) Calyx short, campanulatc, 5-clcft, the 2 upper seg- 

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

 diadclphous (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. Pseudacacia L. COMMON LOCUST. Branches armed with stipal.-ir 

 prickles; Ifts. ovate and oblong-ovate; rac. pendulous, smooth, as well as the le- 

 gumes. Native in Penn. and the more Southern and Western States, and abun- 

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

 The pinnate Ivs. have a beautiful symmetry of form, each composed of 8 to 12 

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

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

 diffusing an agreeable fragrance. Pod narrow, flat, with 5 or G small, brown 

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

 ity. Apr., May. The wood is very hard and durable. 



2 R. viscosa Vent. CLAMMY LOCUST. Stipular spines very short ; branchtets, 

 petioles, and leg. glandular-viscid; Ifts. ovate; rac. crowded, erect. This beautiful 

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

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

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

 garden. Apr., Jn. 



3 R. hispida L. ROSE ACACIA. Stipular spines almost wanting, shrub mostly 

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

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

 and very showy fls. Hight 3 to 5 or 8f. Lfts. 5 or 6 pairs, broadly oval. Fls. 

 inodorous, twice larger than those 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 Ivs. 



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

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

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



