494 
45. UMBELLIFER7E. 
PI. end. caL 
ovate, nearly equal. — Root fusiform ; stern mostly herba- 
ceous; leaves alternate, cut, or compound, rarely undivided ; 
petiole sheathing; flowers umbelled; umbells terminal or 
axillary, often divided into umbellules, naked or involu- 
crated or involucellated, or both. 
A. Flowers regularly umbelled , white or reddish* 
A. 1. Fruit ribbed , ribs naked. 
a. Akenium roundish , vittated ; vittae epicarpic , dorsal and 
commissural. 
a. 1. Involucrum and involucella many-leaved. 
Calyx 5-toothed ; petals reverse ovate, nicked ; 
akenium oblong, 5-ribbed ; stylopodium scaly 
Brepanopiiyllum. 27 6. 
Calyx 5-toothed ; petals uncut, involute ; 
akenium oblong, 5-ribbed ; ribs winged Ligusticum. 292, 
Calyx 5-toothed; petals uncut, involute; 
akenium oblong, 5-ribbed Pseudospermum. 293. 
Calix 5-toothed ; petals uncut, broad-based ; 
akenium ovate, oblong, spongy Crithmum. 283. 
a. 2. Involucrum 0 or few-leaved, deciduous ; involucella 
many-leaved , regular. 
Petals heartshape, equal; calyx very small; 
aken. oblong, 5-ribbed; involucella ovate Sium. 277. 
Pet. heartshape, broad, equal ; cal. very small ; 
aken. oblong, 5-ribbed ; involucella linear .. Bunium. 288. 
Pet. heartshape, reverse ovate, equal ; 
cal. 5-toothed ; aken. ovate, semiglobose, 
5-ribbed Cicuta. 279. 
Pet. heartshape, nearly equal ; lacinule short ; 
aken. ovate, 5-ribbed, crowned ; rays fertile 
Phellandrium. 280. 
Pet . heartshape, radiating ; lacinule long ; 
aken. truncate, 5-ribbed, crowned ; rays bar- 
ren CEnanthe. 281. 
Pet. heartshape, radiating; lacinule short; 
aken. linear, awlshape, 5-ribbed ; rays barren 
Chjsrophyllum. 275. 
Pet. lanceolate ; calyx very small ; 
aken. orbicular, laterally compressed; 
umbells simple Hydrocotyle. 278. 
