(29) 



cc. Endosperm not excavated on its ventral 

 surface (OrtJiospermce). Costce, 5, fili- 

 form, secondly costce 0. Akenes dors- 

 ally compressed, lenticular. 



1. Heracleum. Petals obcordate. Oil 

 tubes clavate. Lateral costae of the two 

 akenes touching each other and more 

 distant from the 3 dorsal costae than 

 these amongst themselves. 



2. Peucedanum. Lateral and dorsal costae 

 equally distant. Oil tubes superficial. 



dd. Primary costce 5, secondary costce 4. 



1. Daucus. Primary costae fiiliform, brist- 

 ly. Secondary costae spinose. 



ee. Endosperm concave on its ventral surface 

 by a longitudinal furrow (Coelosperma?) . 



1. Caucalis. Primary costae spinose; sec- 

 ondary more prominent than the prim- 

 ary. 



2. Coninm. Akenes laterally compressed. 

 Costa3 . undulate, crenulate; secondary 

 costae 0. Oil tubes 0. 



3. Deweya. Akenes laterally compressed. 



Costae prominent. Secondary costae 0. 

 Oil tubes 2-3 in each vallecula. 



4. Osmorrhiza. Akenes linear, angulate. 

 Carpophore persistent. 



