UMBELLACEAE (CARROT FAMILY) 165 



K. Leaves ternate to dissected; leaflets narrow or small. 



(See BB.) Lomatium (hog fennel 

 KK. Leaves 1-2-compound; leaflets wide, sharply toothed. U. — (Gk. 

 eryon = extended, pteron — wing; referring to the fruit wings.) 



Eryptera howellii 



JJ. Stylopodium evident but flat ; calyx teeth evident ; dorsal ribs of the 



carpels sharp or winged. C. E. — (Gli. kyon = a dog, maralhron = fennel; 



application not apparent.) Cynomarathrum brandegei 



U. Lateral wings of the fruit thick. 



I/. Dorsal ribs of the carpels very prominent or slightly winged. — (Gk. 

 pseudos = false ; + Cymopterus, a related genus.) Pseudocymopterus 



LL. Dorsal ribs of the carpels filiform. 

 M. Plant dwarf; leaves smaU, lobed or pinnate. E. — (Gk. cyma = a wave, 

 pteron — a wing; the wings of the fruit are often wavy.) 



Cymopterus leibergii 



MM. Plant tall, stout; leaves large, pirmately decompound. — (Gk. leptos = 



slender, taenion = a band; referring to the filiform fruit ribs.) Leptotaenia 



GROXTP 3 



A. Leaves simple. 



B. Leaves kidney-shaped, 3-7-lobed and somewhat crenate. W. — (Gk. hydor = 



water, kotyle = a flat cup; some species have somewhat cup-shaped peltate 



leaves.) Hydrocotyle ranunculoides (water pennywort) 



BB. Leaves linear to oblong, entire. 



C. Leaves awl-shaped, hollow, with cross partitions ; flowers white ; umbel 



simple. W. — (From Lilaea, a genus which it resembles ; + Gk. opsis = like.) 



Lilaeopsis occidentalis 

 CC. Leaves linear to lanceolate, not hollow, without cross partitions ; flowers 

 yellow; umbel compound. — (Gk. hous = an ox, pleuron = a rib ; referring to 

 the conspicuous leaf veins of some species.) 



Bupleunun americanum (thoroughwax) 

 AA. Leaves compound or very nearly so. 

 D. Oil tubes none; carpels smooth, linear. 



E. Fruit acute-ribbed. — (Honor of George Washington, the first President.) 



Washingtonia (swEET cicely) 

 EE. Fruit not ribbed except at the beak. E. — (The Latin name.) 



Anthriscus cerefolium (beaked parsley) 

 DD. Oil tube i at the base of each groove. 



F. Flowers white or rose color. 

 G. Stylopodium conic. 



H. At least the upper leaflets linear or filiform. 



I. Involucre none; leaflets flabelliform or the upper leaves merely cleft. 

 W. — Cultivated for its seed as a spice. (Gk. koris = a bug; from the 

 buglike odor of the leaves.) Coriandrum sativum (coriander) 



n. Involucre present; leaflets dissected into filiform divisions. 



CARUM (p. 167) 

 HH. Leaflets wider than linear. 

 J. Involucre bracts few or none. — Roots poisonous. (The Latin name.) 



Cicuta (water hemlock) 



