120 PULSE FAMILY. 



-H- -H- -n- Pod not jointed; leaves 3- (rarely 1-, or in No. 46, and one of 44, 5-9-) foliolate ; 



herbs (or No. 43 a woody greenhouse plant) with a twining or trailing habit. 



(In some Beans the twining habit has disappeared.) 



= Leaves S-foliolate (or in No. 3C sometimes l-foliolate, and in one of No. 44, 7-9 -pinnate) . 

 o Flowers yellow (sometimes purple-tinged outside); ovules only 2; pod 1-2-seeded ; 



leaflets not atipellate. 



36. RHYNCHOSIA. Keel of the corolla incurved at the apex ; standard spreading. Calyx 



4-5-parted or lobed. Pod short and flat. Flowers small. Leaves mostly soft-downy 

 and resinous-dotted, sometimes of a single leaflet. 



o o Flowers not yellow ; seeds, or at least the ovules, several ; leaflets stipellate. 

 x Style variously bearded or hairy. 



37. PHASEOLUS. Keel of the corolla, with included stamens and style, coiling into a spiral, 



usually with a tapering blunt apex ; standard rounded, turned back or spreading. Style 

 bearded down the inner side ; stigma oblique or lateral. Pod scimiter-shaped. Flowers 

 usually clustered on the knotty joints of the raceme. Stipules striate, persistent. 



38. VIGNA. Keel curved, either blunt or produced into a curved (not spiral) beak, about 



equal to the wings ; standard nearly orbicular. Style hairy above ; stigma strongly 

 oblique or introrse. Otherwise like Phaseolus. 



39. DOLICHOS. Keel of the corolla narrow and bent inwards at a right angle, but not 



coiling. Style bearded under the terminal stigma. Stipules small. Otherwise nearly 

 as Phaseolus. 



40. STROPHOST YLES. Keel with included stamenstind style elongated, strongly incurved, 



but not spirally coiled. Style bearded lengthwise. Pod linear, terete or flatfish, 

 nearly straight. Flowers few, sessile in capitate clusters on the mostly long 

 peduncles. Otherwise as in Phaseolus. 



41. CENTROSEMA. Keel broad, incurved, nearly equaling the wings ; standard large 



and rounded, spreading, and with a spur-like projection behind. Calyx short, 5- 

 cleft. Style bearded only at the tip around the stigma. Pod long, linear, with 

 thickened edges bordered by a raised line on each side. Flowers showy. Stipules, 

 bracts, and bractlets striate, persistent. 



42. CLITORIA. Keel small, shorter than the wings, incurved, acute; standard much 



larger than the rest of the flower, notched at the end, erect. Calyx tubular, 5- 

 toothed. Style bearded down the inner side. Pod oblong-linear, flattish, not bor- 

 dered. Flowers large and showy, 1-3 on a peduncle. Stipules, bracts, and bractlets 

 persistent, striate. x x style na ;^ 



43. KENNEDYA. Keel incurved, blunt or acute, mostly equaling or exceeding the 



wings ; standard broad, spreading. Calyx 5-lobed ; 2 upper lobes partly united. 

 Pod linear, not bordered. Flowers showy, red, single or few on the peduncle. Bracts 

 and stipules striate. 



44. GALACTIA. Keel straightish, blunt, as long as the wings; standard turned back. 



Calyx of 4 pointed lobes, upper one broadest. Pod flattened, mostly linear. Flowers 

 clustered on the knotty joints of the raceme ; flower-buds taper-pointed. Stipules 

 and bracts small or deciduous. 



46. AMPHICARP^EA. Keel and very similar wings nearly straight, blunt ; the erect 

 standard partly folded around them. Calyx tubular, 4-toothed. Flowers small ; 

 those in loose racemes above often sterile, their pods, when formed, scimiter-shaped 

 and few-seeded ; those at or near the ground or on creeping branches very small and 

 without manifest corolla, but very fertile, making small and fleshy, obovate or pear- 

 shaped, mostly subterranean, pods, ripening one or two large seeds. Bracts rounded 

 and persistent, striate, as are the stipules. 



= = Leaves 5-7 -foliolate. 



46. APIOS. Herbs, twining over bushes, bearing sweet-scented chocolate-purple flowers, 

 in dense and short racemes; peduncles axillary. Calyx with 2 upper very short 

 teeth, and 1 longer lower one, the side teeth nearly wanting. Standard very broad, 

 turned back ; keel long and scythe-shaped, strongly incurved, or at length coiled 

 Pod linear, flat, almost straight, several-seeded. 



