164 NORTH AMERICAN FLORA [Volume 24 



4 mm. long; corolla 15-18 mm. long, similar to that of C. virginiana; pod almost straight, 

 4-5 cm. long, 4-5 mm. wide, densely white-silky with rather appressed hairs, 6-7-seeded. 



Type collected on the False Washita, between Fort Cobb and Fort Arbuckle, 1868, R. Palmer 

 114 (herb. N. Y. Hot. Card.). 



Distribution: Sandy places, Kansas to Texas. 



12. Cracca virginiana L Sp. PI. 752. 1753. 



Galega virginiana I,. Svst. ed. 10. 1172. 1759. 



Galega virginica J. P. Gmel. Syst. Nat. 2: 1552 (index). 1791. 



Tephrosia virginiana Pers. Syn. PI. 2: 329. 1807. 



Tephrosia holosericea Nult. Jour. Acad. Phila. 7: 105. 1834. 



Tephrosia virginiana holosericea T. it G. Fl. N. Am. 1: 296. 1838. 



Tephrosia virginica Biget. Fl. Bost. ed. 3. 296. 1840. 



Cracca virginiana holosericea Vail, Bull. Torrey Club 22: 27. 1895. 



Cracca holosericea Britten it Baker, Jour. Bot. 38: 15. 1900. 



Perennial herb, with a woody branched caudex; stems several, 3-6 dm. high, erect, angled 

 or striate, simple, more or less villous, copiously so above; leaves 6-12 cm. long; stipules 

 lance-subulate, caducous, 5-7 mm. long; petiole very short; rachis more or less short-villous; 

 leaflets 1 1-27, oblong or elliptic, or the terminal one elliptic-obovate, mostly obtuse, apiculate, 

 green and glabrous, or nearly so above, soft silky-Villous beneath, or in the var. holosericea 

 equally silky-pilose on both sides, 2-3.5 cm. long, 5-10 mm. wide; racemes short, terminal, 

 with 1-3 flowers at each node, and sometimes 1 or 2 in the upper axils; bracts subulate; 

 pedicels 5-10 mm. long; calyx silky-villous with short hairs; tube 2.5-3 mm. long, the lobes 

 4-5 mm. long, lanceolate, gradually acuminate; corolla cream-colored, pale-yellow, or white, 

 with a tinge of purple or pink; banner pubescent without, broadly obovate, 15-17 mm. long, 

 tapering into the claw; wings about as long, their blades oblong-oblanceolate, with a large 

 rounded basal auricle on the upper side and a smaller one on the lower, which is adnate to the 

 keel-petal, the claws 2.5 mm. long; keel-petals lunate, almost semicircular, with a large acute 

 basal auricle on the upper side, united with each other for the upper third of their length ; claws 

 3 mm. long; pod 3-5 cm. long, 4-5 mm. wide, straight or slightly falcate, short-villous; seeds 

 4-8, reniform-orbicular, 4 mm. long, 3 mm. high, mottled. 



Type locality: Virginia. 



Distribution: Open woods, from New Hampshire to Manitoba, Louisiana, and Florida. 



Illustrations: Hill, Veg. Syst.pl. 55, f. 1; Britt.it Brown, 111. Fl. f. 2117; ed. 2. f. 2521; l.ouns- 

 berry. Guide Wild Fl. pi. 124. 



13 Cracca Roseana Rydberg, sp. nov. 



A herbaceous perennial, slightly shrubby at the base; stem 3-6 dm. high, canescent- 

 strigose; leaves S— 15 cm. long; stipules subulate, 8-10 nun. long; petiole about 2 cm. long, 

 as well as the rachis canescent-strigose; leaflets 15-21, linear-lanceolate or lance-oblong, 

 1.5-3 cm. long, pale, silky-strigose on both sides, acute and mucronate; racemes 5-15 cm. 

 long, terminal and in the upper axils; bracts lanceolate, short-acuminate, 7-8 mm. long; 

 calyx silky-strigose, the tube 2.5 mm. long, the lobes subulate, 4 mm. long; corolla apparently 

 ochroleucous, 12-14 mm. long; banner obovate, densely strigose without; pod 5-6 cm. long, 

 6 mm. wide, hirsute-strigose, about 8-seeded. 



Type collected at Hacienda Cierro, Queretaro, August 20, 1905, Rose, Painter & Rose 9642 

 (herb. N. Y. Bot. Card.). 



Distribution: Durango and Queretaro. 



14 Cracca leucantha (H.B.K.) Kuntze, Rev. Gen. 175. 1891. 



Tephrosia leucantha H.B.K. Nov. Gen. & Sp. 6: 460. 1823. 



A perennial herb, with a branched caudex; stem 3-5 dm. high, angled, sulcate, short- 

 villous or sub-strigose; leaves about 1 dm. long; stipules subulate-filiform, acuminate, 8-12 

 mm. long; rachis short-villous; petioles 1-2 cm. long; leaflets 7-21, oblong, rounded and mucron- 

 ate at the apex, obtuse at the base, appressed-pubescent on both sides, 2-3 cm. long, 5 mm. 

 wide; racemes terminal, compact, single, or a second smaller in the uppermost axil, peduncled; 

 bracts lanceolate, acuminate, about 1 cm. long, silky; pedicels 4-10 mm. long; calyx sericeous, 



