(180) 



12, Gicuta L- WATER-HEMLOCK. 

 Umbels regularly compound. Cremocarp 

 laterally contracted. Ribs flattened, intervals 

 1-vittate. Mericarp terete. Aquatic. Flowers 

 white. 2|:. 



1. C. CALIFOKNICA Gray. Leaves pinnate, 

 the lower sometimes 2-pinnate at base; leaflets 

 serrate, the veinlets lunning into the teeth. 

 Presidio. Summer. 



2. C. BOLANDERI Watson. All leaves 2-pin- 

 nate; leaflets serrate, the veinlets running into 

 the sinuses; involucral bracts linear. Suisun. 

 Alvarado marshes. Summer. 



3. C. MACULATA L. Lower leaves 2-pinnate; 

 leaflets serrate, the veinlets running into the 

 sinuses; involucre obsolete. Tamalpais. Sum- 

 mer. Poisonous aquatics. 



13. Berula Koch. 



Umbels regularly compound. Cremocarp 

 laterally contracted, ovate. Mericarp terete, 

 5-ribbed, lateral ribs not contiguous. Epi- 

 carp thick, corky. Ribs filiform. Intervals 

 oo-vittate. 



1. B. ANGUSTIFOLIA Koch. If. Flowers 

 white. Baden Station. Summer. 



14. Pimpinella L. 



Umbels regularly compound. Cremocarp 

 laterally contracted, ovate. Mericarp convex, 



