(28) 



bbb. Petals obcordate with a small injlexed lobe. 

 Calyx limb obliterated. 



1. Oarum. Petals regular. Styles re- 

 clined. Akenes oblong. Costoe fili- 

 form. Oil tubes solitary. 



2. Pimpinella. Petals regular. Styles 

 tliin, divergent. Costae fiiliform. Oil 

 tubes 3 in each vallecula. 



ccc. Petals obcordate with a small in flexed lobe. 

 Calyx limb 5-dentate. 



1. Cicuta. Endosperm convex. Fruit con- 

 tracted. Oil tubes solitary. 



2. Sium. Fruit contracted. Oil tubes su- 

 perficial, 3 in each vallecula. 



3. Berula. Fruit contracted. Oil tubes 

 covered by a thickened pericarp, 3 in 

 each vallecula. 



bb. Endosperm not excavated on its ventral 

 surface (Orthospermce). Costal 5, second- 

 ary costaz 0. Akenes terete or subterete. 



1. Angelica. Petals not obcordate, lateral 

 costae extended into wings. 



2. Selinum. Calyx limb obliterated. Pet- 

 als obcordate. Oil tubes solitary. Lat- 

 eral costee much broader than the dor- 

 sal. 



3. (Enanthe. Calyx limb 5-dentate. Styles 

 erect. Oil tubes solitary. Carpophore 

 adnate. 



