LEGUMINOS^E. 89 



the younger larger and somewhat curved: leaflets 9 17, oblong-ovate 

 or elliptical: racemes pendulous, oblong: fl. white, very fragrant. Na- 

 tive of the Atlantic states; long cultivated in California for shade and 

 ornament; now spontaneous in many places. 



8. PSORALEA, Roy en. Perennials (one adventive species shrubby), 

 punctate with dark dots and heavy-scented: leaves pinnately 3-foliolate 

 (in n. 6 palmately 5-f oliolate) : stipules free from the petiole. Calyx- 

 lobes nearly equal, the two upper sometimes connate. Keel broad, 

 obtuse, joined to the wings. Stamens monadelphous or diadelphous : 

 anthers uniform. Pod ovate, indehiscent, 1-seeded. 



1. P. orbicularis, Lindl. Stem prostrate, creeping, the leaves and 

 racemes erect, long-stalked; leaflets 2 3 in. long, the terminal one nearly 

 orbicular, the lateral pairobovate: raceme a few inches to a foot long, 

 the flowers subtended by large deciduous bracts: calyx villous and 

 pedicellate-glandular, cleft almost to the base, the lowest tooth as long 

 as the purplish corolla: stamens diadelphous: pod ovate, acute 3 lines 

 long. Moist grassy places. July. 



2. P. strobilina, Hook. & Arn. Erect, 23 ft. high, villous through- 

 out; the stem and stalklets glandular: leaflets rhombic-ovate, 2 in. long; 

 stipules large, broadly ovate, acuminate: peduncles shorter than the 

 leaves: spike oblong, the bracts very large, deciduous: calyx % in. long, 

 the lower tooth much the longest, equalling the purple corolla: stamens 

 monadelphous: ovary pubescent. Mountains of Contra Costa and Santa 

 Clara counties. 



3. P. macrostachya, DC. Erect, stout, 312 ft. high: leaflets ovate- 

 lanceolate: stipules small, lanceolate: peduncles greatly surpassing the 

 leaves: spikes cylindrical, silky- villous : bracts acuminate, as long as the 

 flowers: lower calyx-tooth longest, scarcely as long as the corolla: tenth 

 stamen almost free: pod ovate-oblong, acute, 3 or 4 lines long, compressed, 

 villous. Very common, either on hillsides or in low ground, but always 

 in moist places. June Oct. 



4. P. physodes, Dougl. Erect, 23 ft. high, nearly glabrous: leaf- 

 lets ovate, acute, 1 in. long; stipules linear-lanceolate: peduncles about as 

 long as the leaves; raceme short, dense, the bracts small: calyx covered 

 with sessile glands and somewhat black-hairy, at length much enlarged 

 and inflated, becoming 4 or 5 lines long, its teeth short, subequal: 

 corolla scarcely % in. long, ochroleucous, often with a deep purple tinge: 

 stamens monadelphous: pod rounded, compressed, 3 lines long. Com- 

 mon in both the Coast and Contra Costa Ranges, in open places among 

 thickets and trees. May July. 



5. P. GLANDULOSA, L. Shrubby or arborescent, with loose elongated 

 branches; glabrous, but roughish with elevated glands: leaflets ovate- 



