j^Q LEGUMINOS^. Psoralea. 



equalling the i)uri)lo corolla : stamens monadelphous : ovary pubescent. — Bot. 

 Beechey, 332, t. 80 ; Torr. & Gray, Fl. i. 689, excl. vur. 



In the liilla from Contra C'osU County to SanUi Cruz. Ditlering from tho next in its greater 

 pubescence, mther larger loaves, larger stipules,^ short peduncles, and larger bracts and llowera. 



3. P. macrostachya, 1 )C. Thiuo to six (or aoiuctimca 10 or 12) l\ct high, 

 puberulout or nwuly glabrous, rarely somewhat tomeutose : petioles shorter ; stipules 

 small, lanceolate ; leallets ovate-lanceolate, often aeutish at base, an inch or two long 

 or more : peduncles nmeh exccciling the leaves: spikes cylindrical, silky-villous, tho 

 liairs often blackish ; bracts broad, acuminate, as long as the flowers : calyx 3 or 5 

 lines long ; the lower tooth a little longest, scarcely equalling the purple petals : tenth 

 stamen nearly free : poil villous, ovate-oblong, acute, compressed, 3 or 4 lines long. 

 — Prodr. ii. 220 ; Lindl. Bot. Keg. t. 1709 ; 'Jorr. &, Gray, Fl. i. G89. J'. stroU- 

 lina, /3., Torr. <fc (Jray, 1. c. 



Through nearly the length of the SUte : Rag Cafion, near Shasta (Brewer), and frequent in the 

 foot-hills of the Sierra Nevada ; Arroyo Seco, Santa Lucia Mts. {Brewer) ; San Felipe Cahou, San 

 Diego Co., Palmer. 



4. P. physodes, Dougl. A foot or two high, nearly glabrous, slender : petioles 

 short and slender ; stipules snudl, lance.olate ; leaflets ovate, mostly acute, about an 

 inch long : peduncles about eciualling or sometimes exceeding the loaves : ilowers in 

 sliort close racemes ; bracts small : calyx somewhat villous with usually dark hairs, 

 half as long as tho corolla, at length mucli enlarged and inflated, becoming 4 or 5 

 lines long ; its teeth short, nearly equal : petals half an inch long or less, white or 

 purplish : stamens monadelphous : pod rounded, compressed, 3 lines long. — Hook. 

 F^l. i. 13G; Torr. & Gray, Fl. i. 304. 



In the Coast Ranges from Monterey northward, extending to Puget Sound. 

 * * Leaves digitately Z-foliolate. 



5. P. lanceolata, Pursh. Erect, a span or two high, glabrous or with a few 

 scattered hairs : petioles short ; stipules linear-lanceolate ; leaflets linear to oblong- 

 obovate, acute, about an inch long : peduncles aljout equalling the leaves : flowera 

 small (2 or 3 lines long), bluish-white, in short spikes ; bracts small : calyx very 

 small ; its teeth short, obtuse, nearly equal : stamens diadelphous : ovary very silky : 

 pod compressed, very glandular, 2 lines in diameter. — Hook. Fl, i. 135, t. 51. 



Frequent in the interior from Washington Territory to Northern Arizona and eastward to the 

 Saskatchewan and Nebraska. Probably to be found in the northeastern part of the State. 



P. FI.OKIBUNKA, Niitt., a similar species, ranges from Texas to Western Arizona and may enter 

 S. E. California. It is more or less canescent with short white hairs, the peduncles exceeding the 

 leaves, and the flowers on short slender pedicels ; petioles mostly very short. 



10. AMORPHA, Linn. 



Calyx obconical, nearly equally 5-toothed. Wings and keel wanting : standard 

 erect, folded together. Stamens slightly united at base, exserted : anthers uniform. 

 Pod oblong, exceeding tho calyx, indehiscent, sessile, 1 - 2-seeded. — Shrubs, glan- 

 dular-punctate ; leaves unequally pinnate, the leaflets usually stipellato ; stipules 

 small ; flowers purple or violet, small, in dense clustered terminal sj)ikes. 

 Half a dozen species, peculiar to the United States, chiefly southern. 



1. A. Californica, Nutt. Three to eight feet high, puberulent, the young 

 leaves silky-jjubesceiit : branches often beset with stout projecting glands : leaflets 5 

 to 7 pairs, oblong-elliptical, obtuse, mucronulate, shortly petiolulate, an inch long : 

 stipules and bracts small, lanceolate, deciduous : spikes 1 to 3, and 2 to 6 inches 

 long : flowers purple, 2\ lines long : calyx half as long ; the teeth silky, triangular, 

 acute : pod pubescent, half-obcordate, 3 lines long. — Torr. k Gray, Fl. i. 30G. A. 

 fruticosa, Torr. Bot. JVIex. Bound. 53. 



