104 LEGUMINOS^. (PULSK FAMILY.) 



iiianv-scfilcd. — rircmiial licrKs, witli iiiii'c|n:illy jiiiinatc leaves, witli the 

 k-alii'ls uitiiositu nimruiialo and slraif^lil-veiiu'il, and white lluwers, turning 

 ])ur|di.sli. 



» Kluwers siixjle or by pairs in the axils of the leaves ; the uppermost often 

 crowded in a dense raceme. 



1. T. Virginiana, I'ers. (Goat's Rue.) Soft-hairy and soniewliat 

 hoarv or .>imoothish ; steins very leafy, clustered, erect, simple; leaflets 11- 

 25, oblong or linear-ohlong, acute or obtuse, siuootliisli above ; flowers yellow- 

 ish wliite tinged with ])ur])le. — Dry soil. June -July. — .Stems l°-2° high, 

 from long ami slender roots. Tlowers showy. 



* * Flowers in long-ped uncled racemes ojijiosite the leaves : vexillum pubescent 

 ' externalljj. 



2. T. spicata, Torr. & Gray. Hirsute or villous with rusty hairs ; stems 

 simple or diffu.sely branched ; leaves scattered, short-petioled ; leaflets 9-15, 

 oval or cuneale-oblong, rounded and stn)ngly mucronate at tlie a))e.\, smooth- 

 ish above; racemes 2-3 times as long as the leaves, 6 - lO-flowered ; lobes 

 of the calyx linear-subulate ; flowers large. Varies with linear, acute, and 

 reflexed leaflets, the odd one elongated. — Dry soil, Florida to North Carolina, 

 and westward. June -July. — Stems l°-2° long. 



3. T. hispidula, Tursh. Hirsute ; stems slender, terete, erect or pro- 

 cuml)ent; petiole shorter than the lowest leaflets; leaflets 11-15 (4" -8" 

 long), oblong, acute or obtuse ; peduncles slender, terete, commonly longer 

 tluin the leaves, 2 - 4-flowered. — Dry sandy soil, Florida to North Carolina, 

 and westward. June- July'. — Stems 6'- 18' long. Legume slightly hispid. 



4. T. chrysophylla, Pursh. Prostrate, rusty-pubescent; stems dif- 

 fusely branched; leaves sessile or nearly so, short (I'-lf long); leaflets 

 (yellowish) 5-7, cuneate-obovate, obtuse or emarginate, smooth above; 

 peduncles longer than the leaves, terete, 2 - 3-flowered ; calyx teeth short, 

 acute. — Varies with smaller (h' - \' long) leaves and flowers, the latter mo.stly 

 solitary on the short peduncles. — Dry pine barrens, Florida, Georgia, and 

 westward. — Stems 6'- 18' long. 



5. T. ambigua, M. A. Curtis. Hoary-pubescent, or nearly smooth ; 

 stems decumbent, angled ; leaves scattered, long-petioled (5'- 6' long) ; leaf- 

 lets 7-15, distant, wedge-oblong, truncate or emarginate at the apex, paler 

 and often smooth above, pur])lish and strongly veined beneath ; peduncles 

 flattened, ei[nalling or exceeding the leaves, few-flowered ; calyx teetli short, 

 acute. — Dry sandy soil, Fhn-ida to Nortli Carolina. June- July. 



6. T. onobrychoides, Nntt. Softly pubescent; stem erect, mostly 

 simple; lea\es ])etio]od; leaflets numerous, narrowly oblong, truncate or 

 emarginate at the apex, nmcronate, soon smooth above ; racemes very long, 

 erect, many-flowered ; legume nearly straight. — Pine barrens near Mobile 

 (J/o/(r), and westward. — Stem 2"^ high. Leaflets 1' long. Kacemes l°-2° 

 long. 



7. T. leptOStachya, DC. Stem erect, branching, slightly pubescent; 

 leaflets 12-14, wedge-oblong, when young silky beneath; stipules subulate; 



