100 LKGUMINOSJB. (PULSE FAM fLY.) 



* Stftus tall ami met ; the persistent stipules anil (deciduous) bracts large and coil- 

 s/'icii' >;(.->, .nniti or ovate-lanceolate, taper-pointed: pods of 4-7 unequal-sided rhom- 

 bic joints, which are considerably longer than broad, about ' long. (Flowers 

 rather large.) 



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



'ii-nte, bluntish, about the length of the petioles, whitish and reticulated beneath, 

 both sides ronghish '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 rather 

 glutinous hairs. 



7. I>. CUSpidatUin, TOIT. & 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. 



* * Steins (2 -5 high) erect: stipules as well as the bracts mostly deciduous, small 

 and inconspicuous : pods of 3-5 triangular or half-rhombic or rny unequal-tided 

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

 dle-sized. ) 



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

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

 pubescent. Pine woods, New Jersey and southward. 



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

 leaflets broadly ovate, very obtuse, rough above, whitened with a soft velvety down 

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



10. I>. Dilleilii, Darlingt. Stem pubescent; leaflets oblong or cMony-oi-atu, 

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

 long). Open woodlands, common. Aug. 



11. I>. panicillatlllll, DC. Nearly smooth throughout; stem slender , 

 leaflets oblong -lanceolate, or narrowly lanceolate, tapering to a blunt point, thin (3' -5' 

 long) ; racemes much panicled. Copses, common. July. 



12. D, strictum, DC. Smooth; stem very straight and slender, simple, 

 leaflets linear, blunt, strongly reticulated, thickish (l'-2' long, ^' wide) ; panicle 

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

 Pine woods of New Jersey, and southward. Aug. 



* * * Stipules small and inconspicuous, mostly deciduous : pods of few roundish or 



obliquely oval or sometimes roundish-rhomboidal joints, 1^'' to 2^" long. 

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



13. D. Caiiadcnse, DC. Stem hairy (3 -6 high); l<ajl<ts oblong- 

 lanceolate, or ovate-lanceolate, obtuse, with numerous straightish veins, much 

 l>n<j<r than the petiole ( l'- 3' long) ; floivers showy, larger than in any other 

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



14. D. sessilifoliillil, Torn & Gray. Stem pubescent (2 -4 high); 

 Ifttns nnn-lt/ .srss/A ; li-ojlts linxir or linear-oblong, blunt, thickish, reticulated, 

 rough above, downy beneath; branches of the panicle long ; flowers small. 

 Copses, Penn, and Michigan to Illinois and southward. Aug. 



