ORDER 43. LEGUMLNOS^E. 95 



Flowers large (9 -10" long) in a leafy terminal cluster. Lfts. 1527 No. 1 



Fls. small, spicate, on long peduncles. a Lfts. 917. Pods downy Nos. 2, 3, 4 



a Lfts. 59. Pods smoothish Nos 5, 8 



1 T. Virginlca Pere. Erect, villous ; Ifts. oblong ; fls. subsessile, axillary and termi- 



nal, variegated with white, rose, and purple ; pod villous. Dry. 1 2f. July. 



2 T. spicata T & G. Rusty-viHous, diffuse ; Ifts. oval-oblong, obtuse or retuse ; ped. 



very long ; calyx teetn longer than tube. S. 1 3f. July. 



3 T. liispidula Ph. Minutely hispid or pubescent, slender, decumbent; Ifts. ellip- 



tic-oblong, acute ; cal. teeth not longer than tube. S. 1 2f. May July. 



4 T. ambigua M. A. Curt. Smoothish, decumbent; Ifls. 715, oblong-oblanceolatc, 



truncate, brownish beneath ; ped. angular, 2-3-flowered, as long as the leaves ; calyx 

 teeth shorter than tube. S. If. June, July. 



5 T. gracilis Wood. Slender, diffuse, subglabrous ; Ivs. stalked ; Ifts. oblong-obovate, 



emarginate ; ped. twice longer than the leaves ; fls. on slender pedicels ; cal. teeth very 

 short ; pod smooth. Fla. to La. G 12'. 



6 T. chrysopliylla Ph. Prostrate, rust-pubescent ; Ivs. sessile ; ]*s. round-obovate, 



acutish, wavy, yellowish ; pedunc. much longer than the leaves ; calyx teeth subulate. 

 Dry woods, Ga. Fla. to Tex. 10 2(X. May July. 



42. INDIGOFERA, L. INDIGO-PLANT. Calyx with 5 acute seg- 

 ments. Vex. roundish, emarginate. Keel spurred each side, at length 

 reflexed. Legume 2-valved, 1 to oo-seeded. > if Stip. sinali, distinct from 

 the petiole. Leaves odd-pinnate. Legume pendulous. 



Racemes longer than the leaves. Leaflets obovate-oblong, obtuse Nos. 1, 2 



Racemes shorter than the leaves. Leaflets oval. Naturalized South Nos. 3, 4 



1 I. Carolinlana Walt. Erect, branched ; Ifts. 1115, petiolulate ; fls. yellowish- 



brown ; pod oblong, veiny, rugous, 2-seeded. Sandy woods, S. 3 7f. July Sep. 



2 I. leptosepala N. Decumbent, strigous ; Ifts. 79, subsessile ; calyx teeth subu- 



late ; fls. pale-scarlet ; pod linear, 6-9-seeded. Ga. Fla. to Ark. 2 3f. 



3 I. TINCTORIA L. Erect ; Ifts. 911 ; pod terete, torulous, curved. Waste pi. | E. Ind. 



4 I. ANIL L. Erect ; Ifts. 711 ; pod flattened, even, with thick edges. Waste. W. Ind. 



43. ROBINIA, L. LOCUST. Calyx 5-cleft, the 2 upper segments more 

 or less coherent. Vex. large. Alae obtuse. Sta. diadelphous (9 and 1). 

 Style bearded inside. Legume compressed, elongated, many-seeded. 5 1> 

 With stipular spines. Lvs. odd-pinnate. Fls. showy, in axillary ra- 

 cemes. Fragrant. Fig. 402. 



1 R. Pseudacucia L. Common Locust. Branches armed with spines; Ifts. ovate 



and oblong-ovate ; rac. pendulous, white, smooth, as well as the pods. Penn. S. and 

 W. Introduced everywhere. 30 SOf. Wood very durable. April, May. 



2 R. viscosa Vent. Clammy Locust. Spines very short; branchlets, petioles, and 



pods glandular-viscid ; Ifts. ovate ; rac. crowded, erect, roseate. Mts. S. 40f. Ap. Jn. t 



3 R. liisplda L. Rose Acacia. Spines almost wanting, shrub mostly hispid ; rac. 



cose, mostly pendulous ; fls. large, rose-red. Mts. S. 3 8f. May, June, t 



44. COLUTEA, L. BLADDER SENNA. Calyx 5-toothed. Vex. with 

 2 callosities, expanded, larger than the obtuse carina. Stig. lateral, under 

 the hooked summit of the style, which is longitudinally bearded on the 

 back side. Legume inflated, scarious. ^ Leaves odd-pinnate. 



C. ARBORESCENS L. Lfte. elliptical, retuse ; vex. shortly gibbous behind. Mt. Vesuvius. 

 8 12f. Leaflets about 9. Flowers large, yellow. June Aug. 



