164 UMBELLIFER& 



t Fruit muricate or prickly- 

 Ridges of fruit elevated, with strong spines 35. Caucalis. 



Ridges obscure 20. Anthriscus. 



tt Fruit smooth, glabrous, rarely pubescent. 



X Fruit short, ovoid, subglobose, or didymous. 



Flowers white. Ridges filiform ; vittae solitary 4. Physospermum. 



Flowers white. Ridges thick, waved ; vittae several 5. Conium. 



Flowers yellow. Ridges stout, even ; vittae several 6. Smyrnium. 



\\ Fruit narrow, but not beaked. Flowers white. 



Ridges slender ; vittae numerous 16. Conopodium. 



Ridges obtuse ; vittae solitary , . 19. Chaerophyllum. 



Primary ridges winged ; vittae 2-3 27. Meum. 



X\\ Fruit narrow, beaked. Flowers white. 



Beak short; ridges sharp ...17. Myrrhis, 



Beak long ; ridges obtuse „ 18. Scandix < 



Beak moderate ; ridges obscure 20. Anthriscus. 



** Seed flat ventrally or nearly so. (Fruit short in all.) 

 t Petals white, entire, with an incurved point. 



Ridges slender ; vittae 1-3. Carpophore entire or 2-fid 9. Apium. 



Ridges stout, sharp; vittae numerous 23. Crithmum. 



tt Petals yellow, entire or with an incurved point. 



Ridges slender; carpophore 2-partite 10. Carum. 



Dioecious. Vittae within the stout ridges 8. Trinia. 



Bracteoles 0. Vittae solitary 22. Foeniculum. 



Bracteoles many. Vittae many 26. Silaus. 



ttt Petals white, obcordate, notched or 2-lobed. 



IF Calyx-teeth distinct. 



Fruit didymous ; ridges depressed ; vittae solitary 12. Cicuta. 



Fruit subterete ; ridges depressed ; vittae 1-2 21. Seseli. 



Fruit globose ; ridges obscure ; vittae 22*. Coriandrum. 



Fruit subterete ; ridges stout; vittse solitary 24. CEnanthe. 



fir Calyx-teeth obscure or 0. 



Fruit covered with hooked bristles 34. Daucus. 



Bracts and bracteoles linear 10. Carum. 



Bracteoles 0. Ridges slender ; vittae ; styles slender 14. iEgopodiurn. 



Bracts and bracteoles unilateral, deflexed 25. iEthusa. 



Bracts few or 0, bracteoles many. Ridges almost winged... 28. Ligusticum. 



B. Fruit much dorsally compressed, broadly winged. 



* Lateral wings of the opposite carpels closely contiguous. 



Petals white, notched. "Wings thin, vittae club-shaped 32. Heraolcum. 



Petals various. Wings thin, vittae long 31. Peucedanum (proper). 



Petals white. "Wings with a thickened border 33. Tordylium. 



