162 UMBELLIFEP^E. 



Vittae several. Disk-lobes depressed ; ridges elevated 5. Conium. 



Viltae several. Disk-lobes conical 6. Smymiurn. 



Section 2. Ammi'nese proper. Fruit as in 1, but seed flat ventrally. 



* Petals entire, tip acute or shortly inflexed. Vittae 1-2. 



Leaves simple. Flowers yellow 7. Bupleurum. 



Leaves compound. Flowers white, dioesious 8. Trinia. 



Leaves compound. Flowers white, 2-sexual 9. Apium. 



** Petals 2-lobed, tip long inflexed. Vittae solitary in the furrows. 



Calyx-teeth obsolete. Vittae as long as the fruit 10. Carum. 



Calyx-teeth obsolete. Vittae very short 11. Sison. 



Calyx-teeth ovate, acute. Vittae long 12. Cicuta. 



*** Petals as in * ; but vittae several in each furrow (except in JEgopodium) . 



Calyx-teeth acute. Leaves pinnate 13. Sium. 



Cilyx-teeth obsolete. Leaves 2-ternate. Vittae 14. iEgopodium. 



Calyx-teeth obsolete. Leaves various. Vittaj many 15. Pimpinella. 



Section 3. Scandici'nese. Fruit elongate. Seed grooved ventrally. 



* Vittae many in each furrow, often faint 16. Conopodium. 



** Vittae 0, or 1 in each furrow. 



Fruit f-1 in.; ridges almost winged 17. Myrrliis. 



Fruit 1-3 in. ; ridges prominent 18. Scandix. 



Fruit \ in.; ridges vanishing upwards 19. Chaerophyllum. 



Fruit g-J in.; ridges or obscure 29. Anthriscus. 



Tribe IV. SESELI'NEffi, Fruit globose or ovoid, not laterally compressed ; 

 commissure broad; lateral ridges distinct (except in 22*. Coriandrum), 

 rarely winged, if so wings of opposite carpels not in contact. 



Sub-tribe 1. Seseli'nese proper. Fruit subterete ; ridges not thickened or corky. 



Calyx-teeth 3mall. Petals white, notched 21. Seseli. 



Calyx-teeth obsolete. Petals yellow, entire 22. Foeniculum. 



Sub-tribe 2. Corian'drese. Fruit globose ; ridges low, secondary broadest. 



22*. Coriandrum. 



Sub-tribe 3. Cachry'dese. Fruit subterete ; primary ridges acute ; outer coat 

 of pericarp lax 23. Crithmum. 



Sub-tribe 4. CEnan'these. Fruit subterete; primary ridges thick, lateral 

 forming a corky rim rotmd the carpel. 



Bracteoles whorled 24. (Ennnthe. 



Bracteo-es unilateral 25. JSthusa. 



Sub-tribe 5. Schultziese, Fruit subterete; lateral ridges thickened or 

 winged '. 26. Silaus. 



Sub-tribe 6. Seli'nese. Fruit dorsally compressed; primary ridges broad, 

 thick. 



Seed concave ventrally; vittae several 27. Meum. 



Seed almost flat ventrally ; vittae many or obscure 28. Ligustieum. 



Seed biconvex; vittae solitary in the dorsal furrows 29. Selinum. 



