Part 1, 1919] FABACEAE: PSORALEAE 27 



Leaflets of an elliptic or oblong type, fully twice as long as broad. 



Leaflets coriaceous, glossy above, in age reticulate. 16. .4. virgala. 



Leaflets thin, dull above, not reticulate. 17. A. Busliii. 



Pod more or less curved upward ; leaflets not subcoriaceous. 



Pod narrow, only slightly curved, 6 mm. long, 2 mm. wide; leaf- 

 lets small, oblong. 18. A. lennesseensis. 

 Pod broader, strongly curved, about 8 mm. long and 3 mm. broad; 

 leaflets usually larger. 

 Pubescence spreading; leaflets mostly rounded at the base (ex- 

 cept in A. arizonica). 

 Pubescence rather sparse, grayish; leaflets oval to elliptic, 



thin, not reticulate. 19. A. frutkosa. 



Pubescence especially on the young parts dense. 



Pubescence orange or yellow; leaflets firmer, reticulate, 



elliptic to oblong, rounded at the base. 20. A. croceolanata. 



Pubescence grayish; leaves thin, not reticulate, obovate 



to oblong-oblanceolate. acute at the base. 21. A. arizonica. 



Pubescence closely appressed; leaflets mostly cuneate at the 

 base. 

 Leaflets mostly of an obovate or oval type; upper calyx- 

 lobes usually acutish; pod slightly curved; racemes 

 mostly solitary. 22. A. occidentalis. 



Leaflets mostly of an oblanceolate or oblong type; upper 

 calyx-lobes usually rounded; pod strongly curved; ra- 

 cemes usually clustered. 23. A. fragrans. 



1. Amorpha californica Nutt.; T. & G. Fl. N. Am. 1: 306. 

 1838. 



? Amorpha hispidula Greene, Fl. Franc. 14, in part. 1891. 

 Amorpha hispidula C. K. Schneid. Handb. Laubh. 2: 71. 1907. 



A shrub, 1-3 m. high; branches more or less short-pilose and with some stalked glands; 

 leaves 1-2 dm. long, ascending; stipules membranous, lanceolate or oblong; petioles about 1 

 cm. long, as well as the rachis pilose and with scattered stalked glands; leaflets 11-25, from 

 broadly oval to elliptic, rounded at both ends or retuse and mucronate at the apex, softly 

 pilose on both sides, 1-3 cm. long, 5-15 mm. wide; racemes mostly solitary, 5-20 cm. long, 

 pilose; calyx 5-6 mm. long, densely pilose, 10-grooved; lobes lanceolate, about equaling the 

 tube; banner reddish-purple, obovate-cuneate, 5 mm. long; pod curved on the back, 8 mm. 

 long, 3 mm. wide, puberulent and conspicuously glandular-dotted. 



Type locality: Santa Barbara, California. 



Distribution: Western Arizona and southern California; apparently also in Shasta County. 



Illustrations: C. K. Schneid. Handb. Laubh. 2:/. 42, q, r; f. 44, b, V . 



2. Amorpha hispidula Greene, Fl. Franc. 14. 1891. 



Amorpha californica Brewer & Wats. Bot. Calif. 1: 140, in part. 1876. Not A. californica Nutt. 

 1838. 



A shrub, 5-12 dm. high; branches sparingly hairy or glabrous; leaves ascending, 1-1.5 dm. 

 long; stipules membranous, lanceolate; petioles about 1 cm. long, as well as the rachis with 

 scattered stalked glands; leaflets 15-25, oval or elliptic, 1-3.5 cm. long, 5-15 mm. broad, 

 glabrous or with a few scattered hairs, rounded at each end or retuse at the apex, conspicu- 

 ously glandular-punctate beneath; racemes solitary, 5-10 cm. long; calyx 4 mm. long, sparingly 

 pilose, 10-grooved; lobes lance-triangular, fully one half as long as the tube; banner reddish- 

 purple, obovate, 4 mm. long; pod straight on the back, 5-6 mm. long, rather conspicuously 

 glandular-punctate. 



Type locality': Monterey County, California. 

 Distribution: Central California. 



3. Amorpha paniculata T. & G. Fl. N. Am. 1: 306. 1838. 



? Amorpha lomentosa Raf. Fl. Ludov. 105. 1817. 

 Amorpha Roemeriana Scheele, Linnaea 21: 461. 1848. 



A coarse shrub, 2-4 m. high; branches velutinous-canescent, angled; leaves 1-3 dm. 

 long, ascending; petioles 2-5 cm. long, as well as the rachis tomentose; stipules setaceous, 

 glabrous; leaflets 11-17, oval or elliptic, 2-7 cm. long, 1-3 cm. wide, strongly veined beneath, 



