(218) 



Piirshiana of Northern California was in use 

 among tliem as a purge. There also was a be- 

 lief that the infusion of the bark, if the branch 

 was scraped towards the top, w^ould act as an 

 emetic. 



An mfuso-decoct. of the leaves is one of the 

 most reliable remedies against fresh cases of 

 the eczema caused by poison oak. 



• 2. Ceanothus L- 

 California Lilac. Chapparal. 



Calyx-tube hemispherical, concave; margin 

 petaloid. Petals unguiculate ; margin cucul- 

 late. Ovary half immersed into the disc; 

 style 3-cleft. Fruit a 3-seeded capsule with 

 base embraced by the calyx tube, dehiscent at 

 the inner angle of the cells. Leaves simple. — ^ . 



1. C. THYESiTLOiius Escliscli. Lcaves all al- 

 ternate, 3 -nerved from their base; flowers in 

 dense, compound racemes, blue, fragrant. — 

 Common. Summer. 



2. C. DENTATUS Torr. & Gray. Leaves all 

 alternate, frequently fascicled, 3-nerved from 

 the base; flowers in small fascicles on naked, 

 terminal peduncles, blue. — Tamalpais. Sum- 

 mer. 



3. C. DIVARICATUS Nutt. Lcavcs all alter- 

 nate, 3-nerved from their base; flowers in 

 racemes, pale; branches spinose. — Niles. Liv- 

 ermore. Summer. 



