174 UMBELLIFERJE. (PAKSLEY FAMILY.) 



9. LEPTOCAULIS. Fruit ovate, tuberculate or bristly. Carpels with single vittae. 



10. DISCOPLEURA. Fruit ovate or globose. Carpels with corky margins and single 



vittae. 



11. CRYPTOT^NIA. Fruit oblong. Carpels with single vittae in the intervals, and under 



the ribs. Rays unequal. Perennial. 

 1'J. SIUM. Fruit ovate. Ribs corky. Vittsi several in each interval. 



TRIBE IV. SESELINE^E. Fruit terete, the cross section circular. Carpels 5-ribbed 

 or 5-winged, the lateral ribs OH the margin. 



13. THASPIUM. Vittae single. Carpels winged. Flowers yellow. 



14. ZIZIA. Vitte single. Carpels wingless, fruit compressed. 



15. LIGUSTICUM. Vittae numerous in the intervals, and on the inner face. Carpels 



sharply ribbed. Perennial. Flowers white. 



10. CYNOSCIABIUM. Vittae single. Carpels with corky ribs. Flowers white. 



TRIBE V. ANGEL1CE.E & VI. PEUCEDANE/E. Fruit dorsally compressed, 

 wing-margined. Carpels 5-ribbed or 5-winged, the marginal ribs broader than the 

 dorsal ones. 



+- Margins of the fruit doubly winged. Flowers white. 



17. ANGELICA. Leaves ternately compound, the leaflets coarse. 



18. CONIOSELINUM. Leaves pinnately compound, the leaflets fine. 



H- H- Margins of the fruit single-winged. Intervals with single vittae (except the last), and 

 2 - G on the inner face of the carpels. 



19. TIEDEMANNIA. Leaves pinnate, ternate, or rush-like. Flowers white. 



20. HERACLEUM. Leaves large, ternately compound. Flowers white, large. 



21. POLYT^ENIA. Leaves biphmate. Flowers yellow. Fruit margins corky. 



TRIBE VII. CUMIMINEyE & VIII. DAUCINE^. Fruit wingless. Carpels 5- 

 ribbed, and with as many secondary ones. Vittae. single under the ribs. 



22. TREPOCARPUS. Carpels naked, the 4 secondary ones prominent, corky. 



23. DAUCUS. Carpels armed with 4 rows of barbed prickles. 



SUBORDER II. CAMPYLOSPERME^. Iimer face of the seed longi- 

 tudinally grooved. 

 TRIBE IX. SCANDICINE.E & X. SMYKNIE^. Fruit laterally compressed. 



24. CHjEROPHYLLUM. Fruit oblong, smooth. Vittae single. Umbel few-rayed. 



25. OSMORRHIZA. Fruit clavate, bristly. Vittae none. 



26. EULOPHUS. Fruit ovate. V.ttae numerous Perennial. 



SUBORDER III. CCELOSPERME^E. Inner face of the seed incurved at 







both ends. 

 TRIBE XI. COKIANDREvE. Fruit globular or twin, wingless. 



27. ERIGENIA. Fruit twin. Vittae several in the intervals. 



28. CORIANDRUM. Fruit globular. Vittae none. 



1. HYDROCOTYLE, Tourn. MARSH PENNYWORT. 



Calyx teeth obsolete. Petals not incurved. Fruit laterally compressed, 

 orbicular. Carpels 5 -ribbed, the dorsal and lateral ones often obsolete, the 

 intermediate ones enlarged. Vitta? none. Low marsh herbs, with slender 

 creeping stems, and peltate or reniform leaves. Umbels small, axillary. 

 Flowers white. 



