FABACEAE 



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and sparsely pubescent or glabrate : racemes slender, usually solitary, 12-25 cm. long : 

 calyx obconic, about 3 mm. long ; lobes short and rounded or the three lower short-pointed, 

 ciliate on the margins : pods about 7 mm. long, narrow, much curved and nearly glandless. 

 In swamps near Waynesboro, Georgia. Summer. 



5. Amorpha Tennesseeusis Shuttl. A branching shrub 1.5-6 m. high, with the 

 young growth more or less clothed with fine tomentum. Leaves 6-20 cm. long ; blades 

 petioled ; leaflets 13-55, the blades elliptic-oblong to oblong-ovate, 0.5-2 cm. long, obtuse, 

 rounded at the base and borne on short petiolules : racemes mostly clustered, 7-15 cm. long r 

 calyx about 3 mm. long, the two upper lobes rounded, the three lower ones triangular, 

 acute, the middle one a little longer than the others : standard obovate, narrowed into a 

 claw-like base, about 4.5 mm. long : pods 5-7 mm. long, much curved, marked with many 

 raised glands. 



On banks of streams, middle Tennessee, southward and eastward. Spring and summer. 



6. Amorpha fruticosa L. A branching shrub 1.5-6 m. high, with the young growth 

 more or less clothed with fine tomentum. Leaves 7-25 cm. long ; blades petioled ; leaflets 

 11-25, the blades oblong-ovate, oval or elliptic-oblong, 1.5-4 cm. long, obtuse, rounded at. 

 the base, on petiolules about 2 mm. long : racemes usually clustered, 7-15 cm. long : calyx 

 about 3.5 mm. long, the two upper lobes rounded, the three lower ones triangular, acute,, 

 the middle one a little longer than the others : standard round-obovate, emarginate, ab- 

 ruptly narrowed at the base, about 6 mm. long : pods 7-9 mm. long, usually much curved, 

 conspicuously marked with large amber-colored, raised glands. 



In swamps and on river banks, North Carolina to Florida and Louisiana, and naturalized north- 

 ward. Spring and summer. 



7. Amorpha angustifolia (Pursh) Boynton. A much-branched shrub 1.5-3 m. high, 

 the young growth finely strigpse-pubescent with grayish hairs. Leaves 7-20 cm. long ; 

 leaflets 9-27, the blades elliptic- to linear-oblong, 2-4 cm. long, mostly acute at both ends, 

 the surfaces minutely puberulent : racemes single or a few in a cluster, 5-20 cm. long : 

 calyx about 3.5 mm. long, the two upper lobes rounded, the lower sharp-pointed, the 

 middle one the longest : standard broadly obovate, short-clawed, 4.5-5 mm. long: pods 

 6-7 mm. long, strongly curved, plainly marked with raised glands. 



On banks of streams, Texas and northward. Spring. 



8. Amorpha Texaiia Buckl. A branching shrub 1-3 m. high, the young growth 

 slightly pubescent or glabrous. Leaves 8-18 cm. long ; blades petioled ; leaflets 7-13, the 

 blades coriaceous, broadly oval, elliptic- or broadly oblong, 1-3 cm. long, 1-2.5 cm. broad, 

 very obtuse and commonly emarginate, rounded or subcordate at the base, smooth and 

 shining above, sparsely pilose or glabrate below, the petiolules 3-4 mm. long : racemes 1-4, 

 densely flowered, 5-12 cm. long : calyx pubescent, about 4 mm. long, the two upper lobes 

 broad and rounded, the three lower ones acute, the middle one the longest : standard orbic- 

 ular, abruptly narrowed at the base, about 7 mm. long : pods about 7 mm. long and half 

 as broad, rounded on the ventral edge, nearly straight on the dorsal, marked with dark 

 glands. 



In rich soil, eastern Texas. Spring. A variety, A. Texana mdllis Boynton [A. laevigata var. pubes- 

 cens A. Gray] , differs in having all the parts clothed with fine, soft tomentum. 



9. Amorpha virgata Small. A glabrate shrub 1-2 m. high, with simple stems, or 

 branching only at the summit. Leaves 8-16 cm. long : leaflets 11-19, the blades firm in 

 texture, oblong, oblong-ovate or ovate, 2-5 cm. long, obtuse, emarginate or often subacute, 

 rounded or subcordate at the base, nearly smooth above, sparsely pubescent beneath, the 

 petiolules 2-3 mm. long : racemes one or several, 8-15 cm. long : calyx about 3 mm. long, 

 sparsely pubescent ; lobes triangular, acute : standard orbicular, about 6 mm. long, 

 abruptly narrowed at the base : pods about 7 mm. long, rounded on the ventral edge, 

 nearly straight on the dorsal, dark brown, marked with small glands. 



In rocky soil, Tennessee to Georgia and Florida. Spring. 



10. Amorpha montana Boynton. A glabrous, much-branched shrub 1-2 m. high. 

 Leaves 7-15 cm. long ; leaflets 9-19, the blades ovate, oblong-ovate or oval, 2-5 cm. long, 

 thin, glabrous on both surfaces, obtuse, often emarginate, rounded or subcordate at the 

 base : racemes usually clustered, 6-15 cm. long, glabrous : calyx campanulate, about 3 mm. 

 long ; lobes very shallow and sparsely ciliate : standard orbicular, short-clawed, about 7 

 mm. long : pods 7-8 mm. long, rounded on the ventral edge, nearly straight on the dorsal, 

 light brown, marked with few small glands. 



In dry soil in the mountains, North Carolina to Tennessee, Georgia and Alabama. Spring. 



11. Amorpha laevigata Nutt. A glabrous shrub. Leaves 9-18 cm. long ; leaflets 

 9-21, distant, the blades elliptic or elliptic-oblong, 2-4 cm. long, obtuse or emarginate, 



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