PI ex. cal. 45. UMBELLIFERiE. 495 
a. 3. Involucrum 0, or few-leaved, deciduous ; involucelia 
halved. 
Involucelia many-leaved, erect \ petals nicked; 
akenium elliptical, 5-ribbed Meum. 291. 
Involucelia 3-leaved, hanging ; pet . heartshape ; 
akenium ovate, 5-jugated ^Ethusa. 286. 
a. 4. Involucrum and Involucelia 0. 
Pet. reverse ovate, bald ; lacinule crenulate; 
akenium ovate, 5-ribbed Pimpinella. 284. 
Petals reverse heartshape ; 
akenium linear, oblong, 5-ribbed Carum. 290, 
Petals ovate, lanceolate ; lacinule acute ; 
aken. ovate, 5-jugated ;flow. unisexual Trinia. 285. 
b. Fruit globular , vitiated; vittce epicarpic , commissural , 
not dorsal. 
Involucrum 0; involucelia 3-leaved, halved; 
pet. 2-lobed, radiating; aken. hemispherical, 
4-ribbed Coriandrum. 301. 
c. Fruit roundish , not vitiated , inodorous , insipid. 
Involucel. halved, 3-leaved; pet. rev. heartshape; 
aken. ovate, 5-ribbed ; ribs crenulate Coniujvi. 287. 
Involucrum and involucel. 0 ; pet. rev. ovate, 
equal; aken. oblong, 5-ribbed ....... ./Egopodium. 289. 
d. Fruit compressed ; vittce, endocarpic . 
Involucrum and involucelia many-leaved ; 
cal. 5-toothed; aken. ovate, edged; pet . rev. 
heartshape, spreading Thysselinum. 295, 
Involucelia many-leaved ; cal. 0 ; aken. 
winged, 3-ribbed ; umbell hemispherical . . Angelica. 297. 
Involucelia few-leaved ; cal. 0 ; 
aken. margined, 3-ribbed ; umhell flat Imperatoria. 296. 
Involucelia halved; cal. 5-lobed; 
aken. fungous ; pet . ovate lanceolate, 
inflected Archangelica. 298. 
A. 2. Fruit ribbed; ribs armed. 
a. Ribs hairy ; vittce epicarpic , dorsal and commissural. 
Involucrum and involucelia many-leaved ; 
calyx very small ; pet. heartshape, hirsute ; 
akenium x*everse ovate, 5-ribbed ........ Libanotis. 294. 
