VOL. II.] 



PEA FAMILY. 



13. Psoralea stipulata T. & G. Large- 

 stipuled Psoralea. (Fig. 2098.) 



Psoralea stipulata T. & G. Fl. N. A. i: 688. 1840. 



Sparingly pubescent or glabrous, nearly glandless, 

 branched, diffuse or ascending, stems i-2 long. 

 Petioles shorter than the leaves; stipules foliaceous, 

 ovate or lanceolate, about 6" long; leaves pinnately 

 3-foliolate; leaflets oval or elliptic, i / -2 / long, entire, 

 narrowed at the base, obtusish at the apex, the ter- 

 minal one on a stalk 3 // -6 // long; peduncles mainly 

 axillary, longer than the petioles; racemes short, 

 dense, i' long or less; flowers purple, 4 // ~5 // long; 

 bracts ovate, acute or acuminate, membranous, de- 

 ciduous; pod not seen. 



In rocky places, Ohio, Indiana and Kentucky. June- 

 July. 



Psoralea pedunculata (Mill.) Vail. Samson's Snakeroot. (Fig. 2099.) 



Hedysarum pedunculatum Mill. Card. Diet. Ed. 8, 



no. 17. 1768. 



Psoralea melilotoides Michx. Fl. Bor. Am. 2: 58. 1803. 

 Psoralea pedunculata Vail, Bull. Torr. Club, 21: 114. 



1891. 



Erect, slender, sparingly branched, i-2^ 

 high, more or less pubescent and rough. Glands 

 of the foliage small and inconspicuous; leaves 

 petioled, pinnately 3-foliolate; petioles shorter 

 than or equalling the leaflets; stipules subulate; 

 leaflets oblong-lanceolate, i^'-s' long, 4,"-^" 

 wide, entire, obtuse at each end, the apex mu- 

 cronulate, the terminal one on a stalk 2 // -6 // 

 long; racemes axillary and terminal, on pedun- 

 cles much exceeding the leaves, rather loosely 

 flowered, 2 / ~5 / long; bracts ovate-lanceolate, 

 acuminate, early deciduous, glandular; flowers 

 purplish, about i" long; pod nearly orbicular, 

 strongly wrinkled transversely. 



In dry soil, Kansas to Indiana and North Carolina, 

 south to Texas and Florida. March-July. 



15. Psoralea Onobrychis Nutt. Sain- 

 foin Psoralea. (Fig. 2100.) 



Stylosanthes racemosa Nutt. Fraser Cat. Name only. 



1813- 

 Psoralea Onobrychis Nutt. Gen. 2: 104. 1818. 



Glabrous or slightly pubescent, branched, 3-6 

 high. Glands of the foliage few and small; stipules 

 subulate; petioles about equalling the 3-foliolate 

 leaves; leaflets ovate-lanceolate, 2 / -4 / long, i / -2 / 

 wide, entire, rounded or truncate at the base, acu- 

 minate at the apex, the terminal one on a stalk about 

 i' long; racemes numerous, axillary and terminal, 

 very slender and loosely flowered, 3 / -6 / long; pe- 

 duncles equalling or shorter than the leaves; flow- 

 ers purplish, i^ / -2 / long; pod obliquely ovoid, 

 4 // -6 // long, transversely wrinkled and roughened 

 with points. 



Along rivers, Missouri to Ohio, southern Ontario, 

 Kentucky and South Carolina. June-July. 



