(181 ) 
dorsally, plain on the ventral side, 5-ribbed. 
Ribs filiform. Lateral ribs contiguous. Inter- 
vals w-vittate.—2f. 
1. P.apiopora Gray. Flowers pale.—Contra 
Costa. Belmont. San Mateo. Summer. 
Odor pleasant, like celery. An infusion of 
the root is used in cases of chronic catarrh, like 
the tincture of its European congener. P. 
Saxifraga. 
15. Carum L. CaRAWAY. 
Umbels regularly compound. Cremocarp 
laterally compressed, oblong. Mericarp equally 
5-ribbed. Ribs filiform. Lateral ribs contig- 
uous. Commissure plain. Intervals 1-vittate. 
Flowers white.—©©. 
1. C, Kettocem Gray.—Presidio. Alameda. 
Sunnyside. Summer. Seeds very fragrant. 
16. Apiastrum Nutt. 
Umbels regularly compound. Cremocarp 
very much contracted at the commissure, cor- 
date. Mericarp incurved at base and apex, 
5-ribbed; ribs« little elevated. Intervals 1- 
vittate. Flowers white.—©. 
1. A. aneustiFoLium Nutt.—Niles. Spring. 
17. Conium L. Hemtock. 
Umbels regularly compound. Cremocarp 
laterally compressed. Endosperm deeply sul- 
