(28) 



bbb. Petals ohcordate with a small iiiflexed lobe. 

 Calyx limb obliterated. 



1. Carum. — Petals regular. Styles re- 

 clined. Akenes oblong-. CostiB fili- 

 form. Oil tubes solitary. 



2. Pimpinella. — Petals regular. Styles 

 tliin, divergent. Costae fiiliform. Oil 

 tubes 3 in each vallecula. 



ccc. Petals obcordate loith a small inflexed lobe. 

 Calyx limb o-dentafe. 



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 {Orlhospermce). Costce 5, second- 

 ary costce 0. Akenes terete or subterete. 



1. Angelica. — Petals not obcordate, lateral 

 cost* 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. 



