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 

 (0.5-1.5 cm.)-petioled, the linear-oblong to narrowly elliptic thick leaflet* 

 strigose-pubescent beneath ; peduncles various, many of them elongate ; cnlys 

 6-9 mm. long, about equaling the 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 pubescence, simple or with few densely flowered wand- 

 like branches ; leaves crowded, short-petioled ; the elliptical firm leaflets wot>//</ 

 or velvety beneath and sometimes above, mostly 1-2.5 cm. long; pe'duncles all 

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

 much shorter than the villous-canescen^ 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, ivand-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, 3-7 mm. broad, flu fly 

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

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

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

 Kan. , La. , and Tex. 



9. L. frutscens (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 flrm leaflets finely appressed-pubescent or t/l<tl>r<rt< , 

 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. hm<i. 

 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 flrm leaflets appressed-pubescent, often silvery, those 

 of the cauline leaves 1.5-4 cm. long ; petaliferous flowers in subcapitate se**i/< 

 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., M<>., 

 and southw. Resembling no. 12. 



11. L. hfrta (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 (> 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 elli^tlcul. thick- 

 ish, reticulated and smooth or silky above, silky beneath ; heads of flov< /> 

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

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

 and La. Passing gradually to 



Var. velutina (Bicknell) Fernald. Stems and both faces of the leaves velvety 

 icith short dull ashy tomentum. (L. velutina Bicknell ; L. Bicknell ii House.) 

 N. H. to N. J. 



Var. Iongif61ia (DC.) T. & G. Leaflets narrower, lance-oblong to linear, 

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



I". L. angustifblia (Pursh) Kll. Like the last, but mostly appressed-silky ; 

 leaflets linear; the smaller often short-cylindric heads on tlistiix't and sometimes 



