UMBELLACEAE (CARROT FAMILY) 165 



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



(See BB.) Lomatium (HOG FENNEL, 



KK. Leaves i-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. (Gk. kyon = a dog, marathron = fennel; 

 application not apparent.) Cynomarathrum brandegei 



II. Lateral wings of the fruit thick. 



L. 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 small, lobed or pinnate. E. (Gk. cyma = a wave, 

 pier on = a wing; the wings of the fruit are often wavy.) 



Cymopterus leibergii 



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

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



GROUP 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. bous = an ox, pleuron = a rib ; referring to 

 the conspicuous leaf veins of some species.) 



Bupleurum 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) 



