LEGUMINOS^. (pulse FAMILY.) 105 



racemes long and slender ; flowers distant ; legume erect. — Sandhills at Cajie 

 Canaveral ( Curtiss). July. — Stem l°-2° high. 



8. T. angUStissiraa, Shuttl. Smooth or nearly so throughout ; stems 

 slender, prostrate, diffusely branched ; leaves short-petioled ; 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 i'lorida [Rugel). — Stem 1° long. Leaflets 8" - \2" 

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



14. INDIGOFEEA, L. Indigo. 



Calyx 5-cleft. Ve.xillum roundish. Keel with a subulate spur on each 

 side, often elastically reflexed. Stamens diadelphous (9 & 1). Legume 1 - 

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

 membranaceous partitions. — Herbs with unequally pinnate leaves, and white, 

 brownish, or purplish axillary flowers. Legumes drooping. 



* Racemes longer than the leaves. — Indigenous species. 



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

 lets 10- 15, obovate 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 -August. % — Stem 3° -5° high. 

 Flowers small. Legume 4" - 5" long. 



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

 obovate-obloug or cuneate ; racemes 6-1 5-flowered ; calyx teeth slender- 

 subulate ; flowers pale scarlet ; legume linear, even, 6 - 9-seeded. — Georgia, 

 and westward. — Stem 2° -3° long. Legume \\' long, straight, 4-angled. 



3. I. subulata, Vahl. Somewhat shrubby, sparsely pubescent with ap- 

 pressed hairs; stem filiform, decumbent; leaves distant ; leaflets 5, oblong, 

 mucronate ; racemes loosely many-flowered, in fruit many times longer than 

 the leaves ; calyx teeth subulate ; legume filiform, reflexed, nearly terete, 

 6 - 8-seeded. — South Florida. — Stem 2' - 3' long. Legume 2' - 3' long. 



* * Racemes shorter than the leaves. — Introduced species. 



4. I. tinctoria, L. Stem erect ; leaflets 9-11, oval, pubescent beneath ; 

 legume terete, torulose, curved. — Waste places. August. 



5. I. Anil, L. Stem erect ; leaflets 7-15, oval ; legume compressed, even, 

 thickened at each suture. — Waste places. 



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

 ployed in the manufacture of Indigo. 



15. SESBANIA, Pers. 



Calyx bibracteolate, campanulate, truncate, 5-toothed. Petals clawed. Vex- 

 illum round or reniform ; wings straight, as long as the curved obtuse keel. 

 Stamens diadelphous (9 & 1). Style smooth; stigma truncate. Legume con- 

 tinuous, contracted between the seeds, 2 -many -seeded, the seeds separated by 

 cross partitions. Cotyledons thick; radicle incumbent. — Leaves abruptly 

 pinnate. Flowers in axillary racemes. 



