LEGUMIN0SJ1. 269 



5. PSORALEA, Linn. 



1. PSORALEA LANCEOLATA, Plirsh. 



Hab. On the Upper Columbia and its tributaries. — Stem 12 to 18 

 inches high, somewhat ligneous toward the base. Leaflets varying 

 from linear-lanceolate and acute to oblong-cuneate and obtuse. 



2. PSORALEA PHTSODES, Boucjl. 



Hab. Base of the Cascade Mountains, Washington Territory. — 

 Leaves all trifoliolate ; the leaflets slightly hairy on both sides. 

 Stipules very small, mostly reflexed. 



3. PSORALEA MACROSTACHYA, DC 



Var. rhombifolia: minute pubescens ; foliis ovato-rhomboideis ; spicis 

 ovatis vel oblongis. 



Hab. On the Upper Sacramento, California. — Mr. Brackenridge, 

 who collected this plant, found specimens ten feet high; but it is 

 commonly from 3 to 6 feet. It differs from the typical form of the 

 species in the slight pubescence, the want of scabrous dots on the 

 stem and peduncles, and in the short spike. 



4. PSORALEA ORBICULARIS, Lindl. 



P. caule repente ; petiolis pedunculisque longissimis erectis ; foliis pinna- 

 tim trifoliolatis ; foliolis orbiculari-obovatis junioribus piibescentibus 

 demum glabrcdis ; spicis densis oblongis vel cylindraceis rachide 

 villosissimo; calyce profunde 5-Jido, lacinia inferiore lanceolata corollce 

 subcequilonga, cceteris subulatis. 



P. orbicularis, Lindl. Bot. Keg. t. 1971 ; Torr. & Gray, Fl. 1, p. 304 ; Hook. & Arn. 

 Bot. Beechey, p. 333. 



Hab. Near San Francisco, California ; commonly on the borders of 

 marshy places. — Stem minutely pubescent. Petioles 8 to 20 inches 



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