LKGUMINOS.E. (PLLSE FAMILY.) 133 



2. P. C^ndidus, Mithx. Smooth; leaflets 7-9, lanceolate or linear-ob- 



lon<l ; Itcdds oUdikj, when old c-yliiulric:il ; hnicts awiicil, lunger than the nearly 

 glabrous (.-alyx ; corolla icliite. — With ii. 1. 



3. P. villbSUS, Xutt. Sojl-doiniij or si/ki/ i\\l u\\tT; li ajltts i:i- 17, linear 

 or oblouij, small (4 -5" long); spikes cylindrical (1-5' long), 8hort-i>cduucled, 

 soft-villous; corolla rose-color. — Wia^. to Mo., west to the Kocky Mts. 



4. P. folibsus, Gray. *S'mooM, very leafy ; leaflets 15 -20, linear-oblong ; 

 spikes ciiliiulrical, short-peduucled ; bracts slender-awned from a lanceolate 

 base, exceeding the glabrous calyx ; ;je<a/s rose-color. — Kiver-banks, 111. and 

 Tenn. 



5. P, multifl6rus, Nutt. 67«/>?o/<.s- througliout, erect, branching ; leaf- 

 lets 3-9, linear to oblong; sjnL-es (J I ohose, the subulate-setaceous bracts much 

 shorter than the acutely toothed calyx; petals white. — Kan. to Tex. 



17. TEPHROSIA, Ters. IIoauy Pka. 



Calyx about equally 5-cleft. Standard roundish, usually silky outside, turned 

 back, scarcely hunger than the coherent wings and keel. Stamens monadel- 

 phous or diadelphous. Pod linear, flat, several-seeded, 2-valved. — Iloary per- 

 ennial herbs, with odd-pinnate leaves, and white or purplish racemed flowers. 

 Leaflets niucronate, veiny. (Name from T€<pp6s, ash-colored or hoary.) 



1. T. Virgini^na, Pers. (Goat's Rue. Catgut.) Silki/-villons with 

 whitish hairs when young ; stem erect and simple (1 -2° high), leafi/ to the top ; 

 leaflets 17-29, linear-oblong; flowers large and numerous, clustered in a ter- 

 minal oblong dense raceme or panicle, yellowish-white marked witli purple. — 

 Dry sandy soil. June, July. — Roots long and slender, very tough. 



2. T. spickta, Torr. & Gray. Villous with rusti/ hairs ; stems branched 

 below, straggling or ascending {2° \or\g), few-leaved ; leaflets 9 -I."), obovate 

 or oblong-wedge-shaped, often notched; flowers few, in a loose and inter- 

 rupted veri/ long-ped uncled spike, reddish. — Dry soil, from Del. and Va. to 

 Fla. and Miss. July. 



3. T. hispidula, Pers. Hairy with .'iome long and rusty or only minute 

 and ap))ressed pubescence; stems slender (9-24' long), divergently branched, 

 straggling; leaflets 5-15, oblong, varying to obovate-wedge-shaped and ob- 

 lanceolate ; peduncles longer than the leaves, 2-4-flowered , flowers reddish- 

 purple. — Dry sandy soil, Va. to Fla. and Ala. 



18. INDIGOFERA, L. Ixmoo. 



Calyx small, equally o-cleft. Standard roundish, silky outside, wings co- 

 herent; keel erect, gibbous or spurred at base. Stamens diadelphous; con- 

 nective gland-like. Pod 1 - several-seeded, septate within between the seeds. 

 — Herbs or shrubs, mostly canescent with appressed hairs fixed by the middle, 

 with odd-pinnate faintly-nerved leaves, and pink or purplish flowers in naked 

 axillary spikes. (So named because some of the species yield the indigo of 

 commerce.) 



1. I. Iept0s6pala, Nutt. A perennial herb, ^-2° high; leaflets 5-9, 

 oblanceolate ; spikes very loose; pods linear, 6-9 seeded, obtusely 4-angled, 

 reflexed, V long. — Kan. to Tex. and Fla. 



