524 LEGUMINOSAE (PULSE FAMILY^ 



narrowly oval strigose pod. — Dry rooky 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 om.)-petioled, the linear-oblong to narrowly elliptic thick leaflets 

 strigose-pubescent beneath ; peduncles various, many o£ them elongate ; calyx 

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

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



7. L. Stuvei Nutt. Stem upright-spreading, 3-12 dm. high, very leafy, 

 downy with spreading jmbescence, simple or with few densely flowered wand- 

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

 or velvety beneath and sometimes above, mostly 1-2.5 cm. long ; peduncles 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. virgfnica (L.) Britton. Stems upright, 3-11 dm. high, wand-like or 

 vrith 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, 3-7 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. (i. reticulata 

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

 Kan., La., and Tex. 



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

 appressed-pubescent or glabrate; 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 1.5-1 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. (i. 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. simulita 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 0., Mo., 

 and southw. — Resembling no. 12. 



11. L. hirta (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. oblong ii'6lia 

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



12. L. capitikta 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. velfitina (Bicknell) Fernald. Stems and both faces of the leaves velvety 

 with short dull ashy tomentum. (L. velutina BickneU ; 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-ftilky , 

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



