9G li:gi>iin()S-k. (pli.sk iamm.v.) 



5- 7, cunoatc-olioviito, olituso or (■mar;^iiiato, smooth aliovo ; pcdiincli-s lonfrrr 

 than the leaves, terete, 2- S-flowered ; ealyx-teeth slioit, aetife. — Varies with 

 smaller (V - I'long) leaves anil flowers, the hitter juoslly solitary on the short 

 peiluneles. — Dry j)ine barrens, Floriila, (IcorLjia, anil westward. — Stems C- 

 18' lonj,'. 



5. T. ambigua, M. A. Cmti-:. Iloary-jmhescent, or nearly smooth ; stems 

 decumbent, angled ; leaves scattered, long |)etioled (5'- G' long) ; leaflets 7 - 15, 

 distant, wedge-oi)long, truncate or emargiuate at the apex, paler anil often 

 smooth above, purplish and strongly veined beneath ; i)ediincles flattened, eijual- 

 ling or exceeding the leaves, few-flowered ; calyx-teeth short, acute ; flowers 

 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, diflfu.sely branched ; leaves short-petioled ; leaflets 10- 1.5, linear, 

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

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

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

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



14. INDIGOFERA, L. I.ndk^o. 



Calyx 5-clcft. A^'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 membrana- 

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

 purj>lish axillary flowers. Legumes drooping. 



* Racemes lonr/er than the leaves. — Tiidi(/e»oiis species. 



1. I. Caroliniana, Walt. Smooth i.sh ; stem erect, tall, branching ; leaf- 

 lets 10 -IT), 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 and August. 1|. — Stem 3° - 5° 

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



2. I. leptOSepala, Nutt. Eongh hairy; stem decumbent; leaflets 7-9, 

 obovatc-oblong or cuncate ; racemes 6- 15-flowered ; calyx-teeth slender-subu- 

 late; flowers pale-scarlet ; legume linear, even, 6-9-sceded. — Georgia, A'"//a//, 

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

 long, straight. 



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



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

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



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

 thicketied at each suture. — Waste places. 



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

 ployed in the manufacture of iudigo. 



