FABACEAE 595 
& Flowers in terminal or axillary clusters or racemes. 42. DOLICHOLUS. 
++ Corolia blue, purple, white or scarlet. 
Pods terete, torulose: corolla scarlet. 43. ERYTHRINA. 
Pods flattened, not torulose: corolla blue, purple or white. 
Calyx subtended by 2 bractlets. 
Standard and the filament opposite partially adnate. 44. DIOCLEA. 
Standard and the filament opposite free from each other. 45. GALACTEA. 
Calyx without bractlets. 46. FALCATA. 
** Standard spurred at the base. 47. BRADBURYA. 
b. Style bearded along the inner side. 48. CLITORIA. 
B. Keel of the corolla coiled or curved. 
Keel spirally twisted. 
Leaflets not stipellate 5 or more. 49. APIOS. 
Leaflets stipellate 3. . 50. PHASEOLUS. 
Keel incurved. 
Inflorescence capitate. 
Pods flattened. 51. STROPHOSTYLES. 
Pods nearly terete. 52. VIGNA. 
Inflorescence racemose. 53. CANAVALIA. 
TRIBE XI. VICIEAE. 
Style terete, with a tuft of hairs at the apex. . 54. VICIA. 
Style flattened, pubescent along the inner side. 55. LATHYRUS. 
1. SOPHORA L. 
Unarmed shrubs or trees, or rarely perennial herbs. Leaves alternate, deciduous or 
persistent, with minute deciduous stipules: blades unequally pinnate : leaflets opposite, 
sometimes with bristle-like stipels. Flowers perfect, in terminal or axillary racemes. 
Calyx pedicelled: tube campanulate, often oblique: lobes 5. Corolla white, yellow or 
violet. Petals 5, with claws, all of which are about equal in length: standard with a sub- 
orbicular blade notched at the apex, truncate or subcordate at the base: wings oblong- 
spatulate, slightly oblique, the blade auricled or truncate at the base : keel-petals much like 
the wings. Stamens 10. Filaments distinct or nearly so: anthers versatile. Ovary nar- 
row, short-stalked. Style subulate, incurved. Pod nearly terete, moniliform fleshy, 
leathery or woody, indehiscent or tardily dehiscent. Seeds globose, each in a separate 
cavity. 
Perennial herbs. Beles hee gs 
Shrubs or trees. sic 
Calyx less than 4 mm. long. Eh sa E 
Calyx over 4 mm. long. 
Leaflets smooth : racemes elongated, mostly over 20 em. long. 8. S. tomentosa. 
Leaflets reticulated : racemes thick, usually less than 10 cm. long. 4. S. secundiftora. 
, 1. Sophora sericea Nutt. Herbaceous, pubescent with silvery or silky appressed 
hairs. Stems branching at the base, the branches 1-3 dm. tall: leaves 3-8 cm. long; 
leaflets 7-25, the blades oblong, elliptic, or obovate, 5-12 mm. long, obtuse or notched at 
the apex: racemes 3-12 cm. long, peduncled : calyx oblong, 7-9 mm. long ; tube oblique 
at the base ; lobes ovate, obtuse, much shorter than the tube: corolla white ; standard 
with a dilated blade about 1 cm. broad : keel-petals 13-16 mm. long: pods leathery, 2.5-5 
cm. long, becoming hard, constricted between the seeds. 
On prairies, Nebraska to Colorado, Texas and Arizona. Spring and summer. 
2. Sophora affinis T. & G. An almost glabrous shrub or small tree sometimes 6 m. 
tall, with spreading branches. Leaves 1-2 dm. long; leaflets firm, 13-15, the blades 
elliptic or oval, 1-4 em. long, mucronate, somewhat lustrous above : racemes slender, 5-15 
cm. long, ascending : pedicels 1-10 mm. long : calyx campanulate, less than 4 mm. long, 
shallowly 5-lobed : corolla white or pink ; petals all with shox claws ; standard with a sub- 
orbicular blade 1-1.5 em. broad ; other petals with oblong-ovate blades : pods 3-8 cm. long, 
pubescent, more or less strongly constricted between the seeds. 
On limestone prairies, Arkansas to Texas. Spring and summer. 
1 3. Sophora tomentósa L. A shrub 1-3 m. tall, with tomentose foliage. Leaves 
Bs dm. long ; leaflets 11-17, the blades leathery, oblong, oblong-obovate or oval, inequi- 
ateral, becoming glabrous and revolute : racemes elongating, 1-4 dm. long: pedicels 5-10 
mm. long: calyx oblong or oblong-funnelform, 5-8 mm. long, constricted at the base, the 
os undulate or indistinetly 5-lobed : corolla yellow ; standard with an ovate blade fully 
cm. broad, and over 1.5 cm. long : keel-petals 20 mm. long: pods 5-10 cm. long, strongly 
constricted between the seeds, long-stalked. 
Along or near the coast, peninsular Florida and the Keys. Spring to fall. 
., *- Sophora secundifldra (Ortega) DC. A shrub or small tree sometimes 10 m. tall, 
with upright branches. Leaves 1-1.5 dm. long ; leaflets leathery, 7-13, the blades oblong 
