100 LEGUMINOSiE. (PULSE F AM FLY.) 



w Stums tall and erect ; the persistent stipules ami (deciduous) bracts large and con- 

 tpicuou8,1tvixte or ovate-lanceolate, taper-pointed: pods of 4- 7 unequal-sided rhom- 

 bic joints, which are considerably longer than broad, about $' long. (Flower* 

 ratlier large.) 



6. D. caiiescens, DC. Stem loosely branched (3 -5 high), hairy; 

 leaflets ovate, bluntish, about the length of the petioles, whitish and reticulated beneath, 

 both sides roughish with a close-pressed fine pubescence ; joints of the pod very 

 adhesive. Moist grounds, Vermont to Michigan, Illinois, and southward. 

 Aug. Branches clothed with minute and hooked, and long spreading rathei 

 glutinous hairs. 



7. D. CUSpidatum, Ton-. & Gray. Very smooth throughout; stem 

 straight ; leaflets lanceolate-ovate and taper-pointed, green both sides ; longer than 

 the petiole (3' -5') ; joints of the pod rhomboid-oblong, smoothish. Thickets 

 July. The conspicuous bracts and stipules |' long. 



* # Stems (2 -5 high) erect: stipules as well as the bracts mostly deciduous, smaR 

 and inconspicuous : pods of 3-5 triangular or half-rhombic or very unenual-sidea 

 rhomboidal joints, which are longer than broad, ' or less in length. (Flowers mid- 



8. D. krviKatiim, DC. Smooth or nearly so throughout ; stem straight ; 

 leaflets ovate, bluntish, pale beneath (2' -3' long); panicles minutuly rough- 

 pubescent. Pine woods, New Jersey and southward. 



9. D. Viridiflorilin, Beck. Stem very downy, rough at the summit, 

 leaflets broadly ovate, very obtuse, rough above, whitened with a soft velvty doum 

 underneath (2' -3' long). .S. New York and southward. Aug. 



10. D. Dilleilii, Darlingt. Stem pubescent; leaflets oblong or ol>lcng-orafe t 

 commonly bluntish, pale beneath, softly and finely pubescent (mostly thin, 2' -3 

 long). Open woodlands, common. Aug. 



11. D. panicillatUHl, DC. Nearly smooth throughout; stem slender , 

 leaflets oblong-lanceolate, or narrowly lanceolate, tapering to a blunt point, thin (3'-L 

 long) ; racemes much panic-led. Copses, common. July. 



12. I>. Strictlim, DC. Smooth; stem very straight and slender, simple, 

 leaflets linear, blunt, strongly reticulated, thicki&k (l'-2'long, tf wide) ; panicle 

 wand-like ; joints of the pod 1-3, scmi-obovatc or very gibbous (only 2" long) 

 Pine woods of New Jersey, and southward. Aug. 



* * * Sti/niles small and inconspicuous, mostly deciduous : pods of few roundish or 

 oMiqualy oral or sometimes roundish-rhomboidal joints, l$" to 2" lono. 

 Stems erect: bracts before flowering conspicuous: racemes densely flowered. 



',3. D. Caiiadcnse, DC. Stem hairy (3 -6 high); lifl<ts oblong- 

 Itincwkite, or ovate-lanceolate, obtuse, with numerous Btraightuh vrius, much 

 lunger than the petiole (l'-3' long) ; flowers sJiowy, larger than in any other 

 species (' - 1' long). Dry, rich woods, common, especially northward. Aug. 



14. I), srssilifoliuiii, Torr. & Gray. Stem pubescent (2 -4 high); 

 leaves n << irly .srW/r , It-nflrts lhiir or linear-oblong, blunt, thickish, reticulated, 

 rough above, downy bi-ncath ; branches of the panicle long , Jh'trrs small. 

 Copses Pcnn.and Michigan to Illinois and southward. Aug. 



