d*6 LEGUMIXOS^. (rULSK FAMILY.) 



5-7, cuncatc-obovatc, obtuse or cmarginatc, smootli above ; peduncles longer 

 than tlic leaves, terete, 2- S-floweix-d ; ealyx-teetli slioit, aeute. — Varies witli 

 smaller (^'- 1' long) leaves and flowers, tlio hitter mosily solitary on the short 

 peduncles. — Dry pine barrens, Florida, Georgia, and westward. — Stems 6'- 

 18' long. 



5. T. ambigua, ^I. A. Curtis. Iloary-pubeseent, or nearly smooth ; stems 

 decumbent, angled ; leaves scattered, long-pctioled (;")'- C long) ; leaflets 7 - 1.5, 

 distant, wedgc-oblong, truncate or cmarginatc at the apex, i)aler and often 

 smooth above, purplisli and strongly veined beneath ; jK'duneles flattened, equal- 

 ling or exceeding the leaves, few-flowered ; calyx-teeth short, aeute ; flowci-s 

 white and purple. — Dry sandy soil, Florida to North Carolina. June and 

 July. 



6. T. angUStissima, Shuttl. Smooth or nearly .so throughout ; stems slen- 

 der, prostrate, diffusely branched ; leaves short-pctioled ; leaflets 10- 15, linear, 

 acute, mostly opposite ; racemes very slender, longer than the leaves, bearing 

 2-4 small scattered flowers; calyx slightly pubescent, with triangular-ovate 

 acute teeth. — South Florida, 7?»(7r/. — Stem 1° long. Leaflets 8" -12" long, 

 1" wide, spreading. Corolla about 3" long. 



14. INDIGOFERA, L. Ixdigo. 



Calyx 5-cleft. Yexillum roundish. Keel with a subulate spur on each side, 

 often clastieally reflexed. Stamens diadelphous (9 & 1). Legume 1 -many- 

 seeded. Seeds usually truncated at each end, often separated by membrana- 

 ceous partitions. — Herbs with unequally pinnate leaves, and white, brownish, or 

 purplish axillary flowers. Legumes drooping. 



* Racemes longer than the leaves. — Tndif/enoiis species. 



1. I. Caroliniana, Walt. Smoothish; stem erect, tall, branching ; leaf- 

 lets lO-l.'j, obovatc or oblong; racemes many-flowered; calyx-teeth short, 

 acute; flowers yellowish-brown; legume oblong, veiny, 2-seeded. : — Dry pine 

 barrens, Florida to North Carolina. July and August. Ij. — Stem 3° -5^ 

 high. Flowers small. Legume 4" -5" long. 



2. I. leptosepala, Nutt. Rough hairy ; stem decumbent ; leaflets 7-9, 

 obovate-obiong or cuneate ; racemes 6 - 1 5-flowered ; caly.x-teeth slender-sid)u- 

 latc ; flowers pale-searlet ; legume linear, even, 6-9-seeded. — Georgia, A'»//«//, 

 South Florida, Bloihjctt, and westward. — Stem 2° -3° long. Legume 1^' 

 long, straight. 



* * lincemes shorter tluin the leaves. — Iiitroduad species. 



3. I. tinctoria, L. Stem erect ; leaflets 9-11, oval, pulK-sccnt beneath ; 

 legume ten-tc, torulose, curved. — Waste places. August. 



4. I. Anil, L. Stem erect ; leaflets 7 -l."), oval ; legume compressed, even, 

 thickened at each suture. — Waste places. 



These two species were formerly cultivated in some of the btates, and em- 

 ployed in the manufacture of indigo. 



