5^4 LEGUMIXOSAE (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 

 (0.5-1.5 cm.)-petioled, the linear-oblong to narroicly elliptic thick leaflets 

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

 6-1) mm. long, about equaling the corolla and the strigose pod. — Barrens and 

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



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

 doiuny vith spreading pubescence, simple or with few densely flowered icand- 

 like branches ; leaves cromded, short-petioled ; the elliptical tirm leaflets icooll// 

 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 tliau the villoiis-cane.^cent pod. — Dry soil, e. Alass. and s. Vt. to 

 Mich., and south w\ Var. neglecta Britton. Leaflets linear or linear-oblong. 

 — N. J. to Mo., and south w. 



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

 with few erect branches, mi)iutely appressed-pubescent or glabrate ; leaves verj^ 

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

 thicki.sh linear or linear-oblong leaflets 1.5-4 cm. long,S-7 mm. bruad, 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 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, mostlj' 

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

 nmch 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 cluster's; calyx 6-8 mm. long, nearly equaling the corolla 

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

 a.nd 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 jieduncles ; pod (at maturity) oblong-ovate, i)ubescent, 

 nearly mm. long, hardly .shorter than the calyx. (L. polystachya Michx.) — 

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

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



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

 0.6-1.2 m. high; petioles very short; leaflets oblong to narmvly elliptical, thiek- 

 ish, reticulated and smooth or silky above, silky beneath; heads of flower/i 

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

 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 \e?ives velvety 

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

 N. H. to X. J. 



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

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



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

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



