UMBELLIFERAE 



227 



28. Angelica. 

 35. Daucus. 



29. Levisticum. 

 33. Pastinaca. 



Corolla white. 

 Fruit spineless. 



Fruit armed with barbed spines. 

 Corolla yellow. 

 Carpels with prominent dorsal ribs. 

 Carpels with merely filiform dorsal ribs. 

 b. Oil-tubes more than one in the intervals. 

 Leaf-blades pinnately or ternately divided. 

 Leaf-blades once ternate, the divisions relatively broad, stalked. 



32. Imperatoria. 

 Leaf -blades pinnate or twice ternate, the divisions not stalked. 



28. Angelica. 

 Leaf-blades much divided. 27. Conioselinum. 



B. Fruit more or less flattened laterally, sometimes slightly dorsally 

 flattened. 

 Oil-tubes solitary in the intervals, sometimes under the secondary ribs. 

 Stylopodium conic. 

 Leaf-segments, at least those of the upper leaves, narrowly linear or 

 filiform. 

 Involucre wanting. 



Corolla white. 9. Coriandrum. 



Corolla yellow. 24. Foeniculum. 



Involucre present. 

 Leaf-blades dissected into many segments. 

 Fruit smooth. 22. Ptilimnium. 



Fruit bristly or tuberculate. 31. Spermolepis. 



Leaf-blades with few segments. 17. Carum. 



Leaf-segrtnents neither narrowly linear nor filiform. 

 Seed-face concave or sulcate. 

 Fruit glabrous or minutely pubescent 

 Fruit covered with spines. 

 Seed-face flat. 

 Fruit orbicular to short-oblong. 

 Fruit elongated-oblong. 

 Stylopodium obsolete or flat. 

 Corolla white. 

 Fruit flattened laterally. 

 Fruit slightly dorsally flattened. 

 Corolla yellow. 

 Fruit with winged ribs. 

 Fruit with merely filiform ribs. 

 Oil-tubes more than one on the intervals. 

 Stylopodium conic. 

 Fruit with equal and prominent ribs. 

 Fruit with almost obsolete ribs. 

 Stylopodium obsolete or flat. 

 Seed-face concave. 

 Seed-face flat or nearly so. 

 Fruit ribless, spiny. 

 Fruit ribbed, spineless. 

 Carpels with filiform ribs. 



Carpels with corky ribs, at least the lateral ones. 

 Oil-tubes continuous around the seed cavity. 



12. Bupleurum. 

 Oli -tubes 2-3 in the intervals. 21. Sium. 



4. Chaerophyllum. 

 8. Torilis. 



15. CiCUTA. 



16. Deringa. 



13. Apium. 

 23. Aethusa. 



26. Thaspium. 



14. ZlZIA. 



25. LiGtrSTICUM. 

 19. PiMPINELLA. 



10. Erigenia. 



2. Sanicula. 



18. Taenidia. 



