524 LEGUMINOSAE (PULSE FAMILY;) 



narrowly oval strigose pod. — Dry rocky woods, s. N. H. to- Mich., s. to N. C. 

 and Ky. 



6. L. Manniana Mackenzie & Bush. Erect or ascending^ 3-7 dm. high, the 

 rather slender stems appressed-pubescent or slightly pilose ; leaves mostly short 

 (0.5-1.6 cm.)-petioled, the linear-oblong to narrowly elliptic thick leaflets 

 strigose-puhescent beneath ; pedancles various, many of them elongate ; cahjx 

 6-9 mm. long, about equaling the corolla and the strigose pod. — Barrens and 

 dry open woods, Mich, to Kan. and Ark. 



7. L. Stiivei Xutt. Stem upright-spreading, 3-12 dm. high, very leafy, 

 downy vnth spreading piibescence, simple or with few densely flowered im7id- 

 like branches ; leaves crowded, short-petioled ; the elliptical firm leaflets woolly 

 or velvety beneath and sometimes above, mostly 1-2.6 cm. long ; pedancles all 

 short, the crowded racemes appearing sessile or subsessile ; calyx 3-5 mm. long, 

 much shorter than the villous-canescent pod. — Dry soil, e. Mass. and s. Vt. to 

 Mich., and southw. Var. neglecta Britton. Leaflets linear or linear-oblong. 

 — N. J. to Mo., and southw. 



8. L. virginica (L.) Britton. Stems upright, 3-11 dm. high, wand-like or 

 with few erect branches, minutely appressed-pubescent or glabrate ; leaves very 

 crowded ; the principal cauline ones with slender rather long petioles, their 

 thickish linear or linear-oblong leaflets 1.5-4 cm. long, S-7 mm. broad, finely 

 appressed-pubescent ; flowers on very crowded short peduncles ; keel shorter than 

 the standard ; calyx 3-5 mm. long, shorter than the strigose pod. (Z<. reticulata 

 Pers.) —Barrens and dry open woods, s. N. H. to Fla. ; and from s. Ont. to 

 Kan., La., and Tex. 



9. L. frutescens (L.) Britton. Stems erect, slender, 1.5-7 dm. high, slightly 

 appressed-pubescent or glahrate; leaves mostly with slender long (1.5-3 cm.) 

 petioles ; the oval to oblong firm leaflets finely appressed-pubescent or glabrate, 

 those of the cauline leaves 1.5-4 cm. long; peduncles of various lengths, mostly 

 very short, a few sometimes nearly equaling the leaves ; calyx 3-5 mm. long, 

 much shorter than the strigillose pod. (L. Stuvei, var. intermedia Wats.) — 

 Open rocky woods, etc., s. Me. to Minn., and southw. 



L. AcuTicARPA Mackenzie & Bush, described from Mo. and Ark., but unknown 

 to us, seems from its description to resemble no. 9, but to have more elongate 

 peduncles. 



10. L. simulata Mackenzie & Bush. Stems erect, with few upright branches, 

 rather stout, 3-9 dm. high, short-pubescent or glabrate ; leaves short-petioled, 

 the linear-oblong to elliptic firm leaflets appressed-pubescent, often silvery, those 

 of the cauline leaves 1.5-4 cm. long ; petaliferous flowers in subcapitate sessile 

 or short-peduncled clusters; calyx 6-8 mm. long, nearly equaling the corolla 

 and the strongly pubescent pod. — Dry open woods and plains, Ct. to O., Mo., 

 and southw. — Resembling no. 12. 



11. L. hlrta (L.) Hornem. Stem with mostly spreading pubescence ; petioles 

 4-12 mm. long ; leaflets from orbicular to oblong-ovate, hairy ; .spikes thick- 

 cylindric, on elongated peduncles ; pod (at maturity) oblong-ovate, pubescent, 

 nearly 6 mm. long, hardly shorter than the calyx, {l. polystachya Michx.) — 

 Dry hills and plains, s. Me. to Ont., Minn., and southw. Var. oblongif6lia 

 Britton. Leaflets narrowly oblong. — Pine barrens, N. J. to Fla. 



12. L. capitata Michx. Stems rigid, tomentose (rarely glabrous or glabrate), 

 0.6-1.2 m. high; petioles very short; leaflets oblong to narrowly elliptical, thick- 

 ish, reticulated and smooth or silky above, silky beneath ; heads of flowers 

 globular, on peduncles shorter than the leaves ; pod oblong-ovate, pubescent, much 

 shorter than the calyx. — Dry and sandy soil, N. E. to Fla., w. to Minn., Neb., 

 and La. Passing gradually to 



Var. velutina (Bicknell) Fernald. Stems and both faces of the leaves reZve^y 

 with short dull ashy tomentum. (L. velutina Bicknell ; L. Bicknellii House.) — 

 N. H. to N. J. 



Var. longifblia (DC.) T. & G. Leaflets narrower, lance-oblong to linear, 

 acute, glabrous above. — 111. and Mo. to Ky. and La. 



13. L. angustifblia (Pursh) Ell. Like the last, but mostly appressed-silky , 

 leaflets linear ; the smaller often short-cylindric heads on distinct and sometimes 



