XXXYIII. UMBELLIFER^. 



167 



6.' Petroselinum. Involucel many-leaved. Fruit ovate : carpels with 

 single vittse between the ribs ; carpophore bipartite. 



7. Helosciadium. Involucel many-leaved. ^ Fruit ovate or oblong: 



carpels with single vittse between the ribs ; carpophore entire* 



8. Tkinia. Carpels with single vittse beneath each rib. Flowers 



dioecious. 



ttj Calyx'teeih small or obsolete. Petals ohcordate or emarginate, with an 



injiexed point, 



II Fruit with single short clavate vittce between the ribs, 



F 



9. SisoN. Fruit ovate. 



VittCB 0. 



10. jEgopodium. Fruit oblong. 



I 



II II II f^^^i<^ elongated, linear, 



11. Carum. Fruit oblong: vittee single between the ribs. 



12. BuNiuM. Fruit oblong : vittee 2 — 3 between the obtuse ribs : suture 



without vitta3. 



13. PiMPiNELLA. Fruit ovate : vittaj 3 or more between the slender ribs : 



suture with vittse. Styles with a swollen base,' 



14. SiUM. Fruit ovate or globose : vittse 3 or more between the obtuse 



ribs : suture with vittse. Styles with a depressed base, 



f f Leaves simple (reduced to the petiole^, 



15. BuPLEXTRUM. Calyx-teeth obsolete. Petals roundish entire, with an 



involute broad point. Fruit ovate-oblong. 



B. Fruit ovate or elliptical, rounded or slightly dorsally compressed ; carpels 



separating, with vittce, 



f Vittce single between the ribs, 



CEnanthe. Styles long, erect. Carpels with blunt ribs and single 

 vittse between them, 



iExHusA. Styles short. Fruit shortly ovate. Involucre few-leaved. 

 Petals ohcordate. 



F<eniculum. Styles short. Fruit oblong. Involucre 0. Petals 

 entire. 



Seseli, Styles long, reflexed. Fruit ovate. Involucre many -leaved. 

 Petals ohcordate, 



ft Vittce 2 or more between the ribs, (^Involucre many-leaved,^ 



J Seeds without vittcB, cohering with the caipels, 



LiGUSTicuM. Petals ohcordate, with an inflexed point, shortly 

 clawed. 



SiLAus. Petals obovate or emarginate, with an inflexed point, sessile 



or with an appendage at the base. 

 Meum. Petals entire, elliptical, with an incurved point, 



XX Seeds with many vittce, loose from the carpel. 



16. 

 17, 



18, 



19. 



20, 

 21. 



22. 



23. Crithhum. Petals roundish, entire, involute. 



