496 45. UMBELLIFERZE. Fl.ex.cal 



b. Ribs Irisiled, glochidated ; vittce. epicarpic, dorsal and 

 commissural. 



Akenium ovate, 5-ribbed ; prickles united 

 by a membrane at bottom ; invol. pinnatifid Daucus. 265* 



Aken. ovate, 3-ribbed, prickly ; involucrum 

 not cut; pet. rev. heartshape, strigose ..... Torilis. 268* 



Aken. ovate, 5-ribbed ; prickles in 2 rows ; 

 involucella many-leaved Caucalis. 269. 



Aken. oblong, 7-jugate; prickles in 1 

 or 2 rows, alternately; involucrum and 

 involucella many-leaved Turgenia» 270. 



0. Uibs armed, leaked^ vittce 0; inodorous, insipid. 



Involucella 5-leaved, not cut ; petals equal ; 

 akenium beaked, 5 jugate; beak short .... Myrrhis. 274. 



Involucella many-leaved, pinnatifid ; pet. equal ; 

 akenium beaked ; beak long Scandix. 273, 



Involucella 3 to 5-leaved, not cut; pet. equal; 

 aken. awlshape, bald, beaked ; beak short ; 

 spermapodophore naked Cerefolium. 271. 



Involucella 3 to 5-leaved, not cut ; pet. equal ; 

 aken. awlshape, thorny, beaked ; beak short ; 

 spermapodophore fringed Anthriscus. 272, 



A. 3. Fruit not rilled. 



sl. Fruit compressed, armed ; vittce. epicarpic, dmsal, and 

 commissural. 



Involucrum and involucella few-leaved ; 

 pet. radiating ; aken. 4-vittated ; dorsal 



vittcB clavate Spondylium. 299. 



Involucrum and involucella many-leaved ; 

 pet. radiating; aken. margined, thickened; 

 dorsal vittcB 4, threadshape Tordylium. 300. 



b. Fruit roundish, armed ; vittce endocarpic. 



Involucrum and involucella many-leaved ; 

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

 heartshape Sanicula. 267. 



B. Flowers regularly ,umbelled, yelloiv or greenish. 



a. Fruit ribbed ; ribs naked ; vittce. epicarpic, dorsal, and 

 commissural. 



Invol. 0; akenium oblong, 3-angular; 

 albumen involute Smyrnium. 308. 



