FABACEAE 599 



1-3 cm. long, rounded or retuse at the apex, delicately nerved beneath : racemes numerous, 

 few-flowered : pedicels 5-8 mm. long : calyx campannlate, about 3 nun. long ; lower lobes 

 triangular, acuminate, shorter than the tube : corolla yellow ; keel-petals less tiian 1.5 cm. 

 in length ; standard with a blade 1 cm. broad or less : pods oval or oblong, long-stipitate, 

 9-12 mm. long, exclusive of the slender beak. 



In dry soil, Maine to Ontario, Minnesota, Florida and Louisiana. Spring to fall. 



8. Baptisia Gibb^sii Small. Similar to B. tinctofia in habit, glaucous. Stem often 

 difTusely branched : leaflets 3, the blades cuneate to spatulate-cuneate, 1-1.5 cm. or rarely 

 2 cm. long, rounded or emarginate at the apex, revolute especially near the base or 

 throughout in age : racemes few-flowered : pedicels 1-4 mm. long : calyx campannlate, 2.5-3 

 mm. long ; lower lobes triangular, acute, much shorter than the tube: corolla yellow ; keel- 

 petals 10-12 mm. long ; standard with a suborbicular blade about 1 cm. broad : pods glob- 

 ular, sometimes depressed-globose, slender-stipitate, tlie body 6-7 mm. long, exclusive of 

 the subulate beak. 



In sandy soil, eastern South Carolina. Spring and summer. 



9. Baptisia lanceolata Walt. Foliage pubescent when young, glabrate in age. 

 Stems 3-9 dm. tall, widely branching : leaflets 3, the blades firm, oblanceolate to linear- 

 oblanceolate, 4-10 cm. long, rounded or notched at the apex, scarcely lustrous above, 

 reticulated, tapering to the base : flowers axillary, usually approximate at the ends of the 

 branches : pedicels 4-5 mm. long : calyx campannlate, 7-8 mm. long ; lower lobes rather 

 triangular, shorter than the tv;be : corolla dull yellow, over 2 cm. long ; standard with a 

 reniform blade about 2 cm. broad: pods leathery, the body ovoid, 2-2.5 cm. long, spar- 

 ingly pubescent, long-beaked, stipitate. 



In sandy pine lands. North Carolina to Florida. Spring. 



10. Baptisia Nuttalliana Small. Foliage more or less densely pubescent. Stems 

 4-11 dm. tall, branching : leaflets 3, the blades firm, cuneate or obovate-cuneate, 2-6 

 cm. long, rounded or notched at the apex, reticulated : flowers in terminal racemes : pedi- 

 cels 1-3 mm. long : calyx camjianulate, 8-10 mm. long, silky ; lower lobes triangular or 

 triangular-lanceolate, shorter than the tube : corolla yellow; keel-petals fully 15 mm. long; 

 standard with a reniform blade 1.2-1.8 cm. broad : pods oval, firm, the body 1-1.7 cm. long, 

 long-stipitate, pubescent, the beak fully A as long as the body. \_B. confnsa Pollard & Ball.] 



In dry soil, Arkansas to Louisiana, Texas and adjacent Mexico. Spring and summer. 



11. Baptisia elliptica Small. Foliage glabrous or minutely pubescent. Stems 3-9 

 dm. tall, sometimes zigzag, branching : leaflets 3, variable, the blades of the lower ones ob- 

 lanceolate, those of the upper leaves elliptic or sometimes broadened slightly above the 

 middle, or below it, rounded or notched at the apex, rai-ely acute, lustrous above, mostly 

 tapering to both ends, especially to the base, reticulated : flowers solitary in the upper 

 axils or approximate at the ends of the branches, sometimes in terminal racemes : pedicels 

 5-10 mm. long : calyx campannlate, 6-8 mm. high ; lower lobes triangular, shorter than 

 the tube : corolla yellow, about 2 cm. long ; standard with a nearly reniform blade notched 

 at the apex, truncate or cordate at the base : pods firm, the body 1.5-2 cm. long, slender- 

 beaked, strigillose, long-stipitate. 



In dry pine lands, Florida. Spring. 



12. Baptisia sphaerocdrpa Nutt. Foliage glabrous or parts of it sparingly pubes- 

 cent when young. Stems 3-10 dm. tall, solitary or several together, branching : leaflets 3, 

 firm, the blades elliptic to elliptic-oblanceolate, obtuse or retuse at the apex : racemes 

 opposite the leaves, elongated, 1-4 dm. long, loosely flowered : pedicels 3-8 mm. long, sub- 

 tended by minute bracts : calyx campannlate, 6-8 mm. high ; lower lobes lanceolate- 

 acuminate : corolla deep yellow ; keel-petals 15-18 mm. long ; standard with an orbicular, 

 reniform blade fully 1 cm. broad : pods woody, the body broadly oval or subglobose, 1.5-2 

 cm. long, glabrous, stipitate, abruptly short-beaked. 



In dry soil. Arkansas and Texas. Spring and summer. 



13. Baptisia villosa (Walt.) Ell. Foliage minutely pubescent or glabrate in age, 

 turning black in drying. Stems stout, 5-8 dm. tall, branching : leaflets 3, firm, the 

 blades elliptic to elliptic-oblanceolate or obovate, obtuse or notched at the apex, reticulated, 

 lustrous above : racemes 2-4 dm. long, erect or spreading : pedicels strigillose, 5-8 cm. 

 long : calyx campannlate, about 1 cm. long ; lobes triangular to ovate, ^ as long as the 

 tube : corolla yellow, over 2 cm. long ; standard with a blade 2 cm. broad : pods firm, the 

 body oblong-ovoid, 3-3.5 cm. long, conspicuously slender-beaked, long-stipitate. 



In sandy soil. North Carolina. Spring. 



14. Baptisia sulphiirea Engelra. Foliage glabrous. Stem 5-12 dm. tall, with 

 spreading branches, the branches glaucous : leaves few ; petioles mostly 5-10 mm. long : 



