584 Leguminosae 



Flowers purplish or yellowish white; pods not jointed, not 

 ribbed lengthwise, flat, symmetrical, the vaives not cori- 

 aceous; leaflets mostly larger than the preceding 



3820. Lespedeza, p. 610. 



Pods more than 1-seeded 3696. Hosackia, p. 597. 



Leaflets stipellate. 



Style beardless; flowers about 12 mm long; pods less than 5 cm 

 long; twining, herbaceous vines. 

 Calyx ebracteolate; leaflets of a broad, ovate type, the terminal 

 one about as wide as long; pods densely bearded along the 



sutures 3860. Amphicarpa, p. 620. 



Calyx bibracteolate; leaflets of a narrow-ovate, oval or elliptic 

 type, the terminal one about twice as long as wide; pods 

 not bearded along the sutures. .. .3882. Galactia, p. 621. 

 Style bearded lengthwise on the upper surface. 



Flowers yellow, keel strongly curved but not forming a spiral; 



pods nearly terete, 5-seeded. (The cow peas.) 



3905. Vigna, p. 623. 



Flowers purplish or nearly white. 



Flowers usually 1 or 2 in the axils of the leaves, mostly 4-5 

 cm long; calyx about 15 mm long, deciduous; pods 2-5 cm 

 long; stipules and stipels rather conspicuous, persistent. 



3857. Clitoria, p. 620. 



Flowers less than 4 cm long. 



Inflorescence of short sessile racemes in the axils of leaves ; 

 pods sessile, flat, about 1 cm wide. (The soybeans.) 



3864. Glycine, p. 621. 



Inflorescence of racemes or umbels on long peduncles, in 

 the axils of leaves. 

 Flowers in long, loose racemes, the keel spirally coiled; 

 lower calyx lobe shorter than the tube; seed about 



8 mm long, glabrous 3901. Phaseolus, p. 622. 



Flowers in umbel-like clusters, the keel long, strongly 

 incurved; lower calyx lobe as long as or longer than 

 the tube; seeds less than 7 mm long, mealy-pubes- 

 cent (pubescence easily detached in one species). 



3901 A. Strophostyles, p. 622. 



R. Leaves with 5 or more leaflets (rarely a specimen with a few 3-foliolate 

 leaves) . 

 Upper or lower surface of leaflets with small, resinous dots; pods 1- or 2- 

 seeded. 

 Stamens 5; leaflets (3) 5-9, 1-6 mm wide, apiculate, dotted beneath; flowers 



white or purplish; pods 1-seeded 3710. Petalostemum, p. 600. 



Stamens 9 or 10; leaflets 9-49. 



Leaflets many, mostly less than 6 mm wide, obtuse, glabrous; pods 1- 



seeded 3709. Dalea, p. 600. 



Leaflets 9-many, mostly more than 6 mm wide, more or less pubescent at 

 least beneath. 



Woody shrubs; pods not prickly 3707. Amorpha, p. 599. 



Perennials; pods prickly 3769. Glycyrrhiza, p. 602. 



Upper and lower surface of leaflets without resinous dots. 

 Flowers in umbels on long, terminal or axillary peduncles, rose color; pods 

 mostly 1-2 cm long, 4-angled, at maturity breaking up into 3-7 in- 

 dehiscent segments 3774. Coronilla, p. 602. 



Flowers not in umbels; pods at maturity not breaking up into indehiscent 

 segments. 



