666 LXX. UMBELLIFER2G. (C. B. Clarke.) 



Bracteoles simple, linear , .... 4. VICATIA. 



Bracteoles lobed or pinnatifid .5. TRACHYDIUM. 



Bracteoles entire, lanceolate, white-margined 6. ELJEOSTICTA. 



** Carpels in outline ovate or oblong, not distinctly narrowed upwards, plane 

 on the inner face ; seed plane or concave on the inner face. 



Leaves entire. Flowers yellow or lurid 7. BUPLETJRTJM. 



Umbels short-peduncled, leaf-opposed, ebracteolate .... 8. APIUM. 



Eidges of the fruit thick, corky 9. CICUTA. 



Stem rigid, branched, almost leafless. Fruit densely hairy . 10. PITURANTHOS. 



Eidges of the fruit slender, valleys 1-vittate 11. CABUM. 



Eidges of the fruit obtuse, corky, valleys 2-3-vittate . . .12. SIUM. 



Eidges of the fruit slender, valleys g-3-vittate 13. PIMPINELLA. 



*** Carpels in outline elongate oblong', seed in horizontal section nearly cir- 

 cular, grooved on the inner face. 



Ultimate segments of the leaves large, fruit attenuate at base . 14. OSMOBRHIZA. 



Fruit oblong, narrowed upwards, distinctly ridged, glabrous . 15. CHJEROPHYLLUM. 



Fruit narrowed upwards into a long beak 16. SCANS ix. 



Fruit oblong, narrowed upwards, obscurely ridged, hispid . .17. ANTHBISCUS. 



TRIBE II. Seselineae. Fruit widest at the commissure, in horizontal 

 section circular or somewhat dorsally compressed. 



* Primary ridges of the fruit more or less distinct, not alate. 



Fruit globose or subcylindric, ridges distinct. Petals white . 18. SESELI. 

 Central flower of the umbellule sessile perfect, lateral male 



pedicelled 19. PYCNOCYCLA. 



Leaves cut into filiform segments. Bracts 0. Petals yellow . 20. FCENICULUM. 

 Fruit f in., roughly corrugate between the ridges ..... 21. PRANGOS. 

 Fruit with all the ridges equal, broad, obtuse, corky . . . .22. (ENANTHE. 



Bracts prominent. Fruit ovoid, vittae oo 23. SCHULTZIA. 



Bracts 0, or small. Fruit ovoid, vittae < 24. POLYZYGUS. 



* Primary ridges of the fruit (or the lateral only) more or less excurrent 9 

 ged. 



t Valleys next the dorsal ridge 2-3-vittate. 



Petals emarginate. Fruit less than ^ in. . 25. LIGUSTICUM. 



Petals subentire. Fruit ^ in 30. ABCHANGELICA. 



ft Valleys next the dorsal ridge H-vittate (very rarely 1 or 2 additional small 

 superjicial vittce are present), in Pleurospermum Candollii 3-2-vittate. 



Tall. Leaves very compound. Seed plane on the inner face . 26. SELINUM. 

 Stemless, or short. Carpels much compressed dorsally . . .27. CORTIA. 



Seed grooved or concave on the inner face 28. PDEVROSPEBMUM! 



Leaves compound pinnate with large segments. Fruit in. . 29. ANGELICA. 



TRIBE III. Peucedaneae. Fruit much dorsally compressed, dorsal 

 ridges slightly excurrent lateral winged, wings of the opposite carpels closely 

 applied face to face. 



Petioles of the leaflets winged. Petals yellow. Fruit in. . 31. FERULA. 



Flowers not radiant. Ovary glabrous 32. PEUCEDANUM. 



Ovary pubescent. Vittae rarely reaching the base of the fruit 33. HERACLEUM. 

 Wings of carpels hyaline with a very thick border . . . .34. ZOSIMIA. 



