Fl.ex,cal. 45. UMBELLIFER^. 495 



a. 3. Involiicrum 0, or few-leaved^ deciduous ; involucella 

 halved. 



Involucella many 'leaved, eiect; petals nicked; 

 akenium elliptical, 5-ribbed Meum. 251, 



Involucella 3-leaved, hanging; pet. heartshape ; 

 akenium ovate, 5-jugated ^thusa. 286. 



a. 4«. Involucrum and Involucella 0. 



Pet. reverse ovate, bald ; laeinule crenulate ; 

 akenium ovate, 5-ribbed Pimpinella. 284. 



Petals reverse heartshape ; 

 akenium linear, oblong, 5-ribbed Carum. 290. 



Petals ovate, lanceolate ; laeinule acute ; 

 aken. ovate, 5-jugated ;^ozf. unisexual Trinia. 285. 



b. Fruit glolular, vittatedj vittce epicarpic, commissural, 

 not dorsal, 



Involucrum 0; involucella 3-leaved, halved; 

 pet. 2-lobed, radiating; aken. hemispherical, 

 4-ribbed Coriandrum. 301. 



c. Frtiit roundish, not vitiated, inodorous, insipid. 



Involucel. halved, 3-leaved; pet. rev. heartshape; 

 aken. ovate, 5-ribbed ; ribs crenulate Conium. 287. 



Involucrum and involucel. ; pet. rev. ovate, 

 equal; aken. oblong, 5-ribbed ^Egopgdium. 289. 



d. Fruit compressed', vittce. endocarpic. 



Involucrum and involucella many-leaved; 

 cal. 5-toothed; aken. ovate, edged; pet. rev. 

 heartshape, spreading Thysselinum. 295. 



Involucella many-leaved ; cal. ; aken. 

 winged, 3-ribbed ; umhell hemispherical . , Angelica. 297. 



Involucella few-leaved ; cal. ; 

 fl^ew. margined, 3-ribbed ; z^wZ'e// flat Imperatoria. 296. 



Involucella halved ; cal. 5-lobed ; 

 aken. fungous ; pet. ovate lanceolate, 

 inflected Archangelica. 298, 



A. 2. Fruit rilled; rils armed. 



a. Rils hairy; vittce epicarpic, dorsal and commissural. 



Involucrum and involucella many-leaved ; 

 calyx very small ; pet. heartshape, hirsute ; 

 akenium reverse ovate, S-ribbed ........ Libanotis. 294. 



