yS Umbelliferae 



Leaves simple, entire. Flowers yellow. Bupleurum. 



Leaves compound. Flowers white, dioecious. ^ 



flowers with narrower petals. Trinia. 



Leaves compound. Flowers white, hermaphrodite. 



Apium. 



2. Petals 2-lobed. Tip long, inflexed. One vitta 

 in each furrow. 



Calyx teeth minute or absent. Vittae as long as 

 fruit. Carum. 



Calyx teeth minute or absent. Vittae only in upper 

 half of fruit. Sison. 



Calyx teeth leafy, ovate, acute. Vittae long. Cicuta. 



3. Petals as i, but vittae usually several in each 

 furrow. 



Leaves pinnate. Calyx teeth acute. Ridges obtuse. 



Sium. 



Leaves twice 3-nate. Calyx teeth absent. Ridges 



slender. Vittae o. Aegopodium. 



Calyx teeth absent. Vittae many. Pimpinella. 



Subtribe 2. Seselinae, Ridges prominent, sometimes 

 winged, lateral ones forming continuation of commissural 

 face of fruit. 



1. Fruit almost cylindrical. Ridges not thickened 

 or corky. 



Calyx teeth minute. Petals white, notched. Seseli. 

 Calyx teeth o. Petals yellow, entire. Foeniculum. 



2. Fruit as above. Primary ridges acute; outer coat 

 of pericarp loose, corky. Crithmum. 



3. Fruit as above. Primary ridges thick, lateral 

 ridges forming a corky rim round the carpel. 



