LEGUMINOS^. (pulse FAMILY.) 125 



Tribe VI. FHASKOIiEj^. Twining or sometimes only trailing plants (herbs in tem- 

 perate regions), with pinnately 3- (rarely 1- or 6-7-) foliolate leaves, commonly stipellate. 

 Pedancles or fiowet'S axillary ; the pedicels usually clustered on the thickened nodes of 

 the raceme. Anthers uniform. Pod continuous^ not jointed, nor more than l-celled, except 

 by cellular matter sometimes deposited between the seedSj 2-valved. Cotyledons thick, and 

 rising above ground little changed in germination, or sometimes becoming foliaceous. 

 * Leaves pinnate. 



i2. Widtarla. Woody twiner : leaflets 9- is. Keel barely inciirved, obtuse. 



24. Aplod. Herbaceous tvfiDer : leaflets 5-^7. Keel slender and much incurved or coiled. 



* * Leaves 3-foliolate. Ovules and seeds several. Tlowers not yeliovf-. 



25. Fliaseolns. Keel strongly Incurved or coiled: standat-d recurved-spreading. Style 



bearded lengthwise. 

 26 Centrosema^ Calyx short, 5-cleft. Standard with a spur at the base: keel broad, 

 merely incurved. Style minutely bearded next the stigma. 



27. Clltoria. Calyx tubular, 5-Iobed. Standard erect, spurless : keel scythe-shaped. Style 



bearded down the inner face. 



28. Ampliticarpeea. Calyx tubular, 4 - 54oothed. Standard erect : keel almost straight. 



Style beardless. Some nearly apetalous fertile flowers next the ground. 



29. Galactia. Calyx 4-cleft, the upper lobe broadest and entite. Style beardless. Bract 



and bractlets minute, mostly deciduous. 

 * # * Leaves 1 - 3-foliolate. Ovules ahd seeds only one or two. Flowers yellow. 



30. Rhynchosla. Keel scythe-shaped. Calyx 4 - 6-parted. Pod short. 



B. Stamens all separate. 



Tribe VII. SiOPHORE.ffi and PODALYRIE:^. Stamens 10, distinct; the co- 

 rolla being truly papilionaceous. 



31. Baptisia. Calyx4-5-lobed. Pod inflated. Herbs: leaves palmatelyS-folioIate or simple. 



32. Cladrastis. Calyx 6-toothed. Pod very flat. Tree, with pinnate leaves. 



SuBORDEK n. C^SALiPIXIEiE. Brasiletto Family. 

 Corolla imperfectly or not at all papilionaceous, sometimes nearly regu- 

 lar, imbricated in the bud, the upper or odd petal inside and enclosed' 

 by the others. Stamens 10 or fewer, commonly distinct, inserted on the 

 calyx. Seeds anatropous, often with albumen. Embryo straight. 



* Flowers imperifectly paptlionaceoiis, perfect. 



33. Cercls. Calyx camiiaiQulate, 6-toothed. Pod flat, wing-margined. Leaves fiimple. 



♦ * Flowers hot at all papilionaceous, perfect. 



34. Cassia. Calyx of 5 nearly distinct sepals. Leaves simply and abruptly pinnate. 



# * # Flowers not at all papilionaceous, polygamous or ditEcious. 



35. Crymn'ocladus. Tree: leaves all doubly pinnate. Calyx-tube elongated, at its sum- 



mit bearing 6 petals resembling the calyx-lobes. Stamens 10. 

 86. Gleditschta. Trees thorny: leaves simply and doubly pinnate. Calyx-tube short; 

 its lobes, petals, and stamens 3-5. 



SuBOHDER in. MIMOSEiE. Mimosa Family. 



Flower regular. Corolla valvate in aestivation, often united into a 

 4 - 5-lobed cup, hypogynous, as are the (often very numerous) exserted 

 stamens. Embryo straight. Leaves twice pinnate. 



37. Desmantlius. Petals distinct Stameria 5 or 10 Pod smooth. 



38. Scliranltla. Petals united below into a cup. Stamens 8 or 10. Pod covered with 



small prickles or rough projections. 



