200 UMBELLIFER^. (PARSLEY FAMILY.) 



-(- -I- Ribs all prominent and equal but not winged ; flowers white. 



12. liigusticuiTL. Ribs acute, with broad intervals. Stylopodium conical. Oil-tubes nu- 



merous. Smooth perennials, with large compound leaves. 



13. ^thiisa. Ribs very broad and corky, acute. Stylopodium depressed. Oil-tubes soli- 



tary. Introduced annual. 

 M. Coelopleuruni. Ribs thick, corky (mostly obtuse). Oil-tubes solitaiy, adherent to 



the seed, which is loose in the pericarp. Stout glabrous sea-coast perennial. 



■>-■*-■*- Dorsal ribs filiform, the lateral very thick and corky ; oil-tubes solitary. 

 "V5. Crantzia. Small glabrous creeping perennials, rooting in the mud, with small simple 



umbels and leaves reduced to hollow cylindrical jointed petioles. 



* * * Fruit flattened laterally. 



-I- Carpels depressed dorsally ; fruit short. 



•^ Seed-face flat ; flowers mostly yellow. 



16. Foeniculum. Ribs promiient. Oil-tubes solitary. Stout aromatic herb, with filiform- 



dissected leaves 



17. Pimpinella. Ribs filiform. Oil-tUbes numerous. Glabrous perennials, with com- 



pound leaves. 



++ ++ Seed-face concave; flowers white {yellow in n. 20) ; ribs filiform or obsolete. 



18. !Eulophus. Oil-tubes numerous. Stylopodium conical. Glabrous perennials from 



fascicled tubers, with pinnately compound leaves. 

 V9. Anthrisctis. Fruit linear, long-beaked, without ribs or oil-tubes, and with conical 



stylopodium. Leaves ternately decompound. 

 20. Bupleurum. Fruit oblong, with slender ribs, no oil-tubes, and prominent flat stylo* 



podium. Leaves simple, perfoliate. 



-t- ••- Carpels terete or slightly flattened laterally ; flowers white (except n. 24) 



** Seed-face flat (or somewhat concave in n. 28) ; fruit short. 



= Leaves 3-foliolate ; stylopodium conical ; oil-tubes solitary. 



^1. Cryptotsenia. Ribs obtuse, equal : fruit linear-oblong. 



= = Leaves once pinnate ; stylopodium depressed ; oil-tubes numerous. Aquatic perennials. 



22. Slum. Fruit ovate to oblong ribs prominent, corky, nearly equal. 



23. Berula. Fruit nearly globose ; ribs inconspicuous ; pericarp thick and corky. 



= = = Leaves decompound. Oil-tubes solitary (none in n. 27) Perennials. 



24. Zizia. Ribs filiform ; stylopodium none. Flowers yellow. 



2.5 Caruin. Ribs filiform or inconspicuous; stylopodium short-conical. Leaf-segments 

 filiform. Roots tuberous. 



26. Cicuta. Ribs flattish, corky, the lateral largest. Marsh perennials, with serrate leaf- 

 lets, the veins often running to the notches. 



27 iEgopodium. Ribs filiform ; oil-tubes none ; stylopodium conical. Leaves biternate. 



= = == = Leaves finely dissected ; oil-tubes solitary. Very slender annuals. 



25. licptocaulis. Fruit bristly or tuberculate, with rather prominent equal ribs. 



29. Discopleura. Dorsal ribs filiform, the lateral very thick and corky. 



++ ++ Seed-face concave ; fruit ovate, glabrous, with depressed stylopodium, and no oil-tubes. 



30. Conium. An introduced biennial, with spotted stems, and large decompound leaves. 



4^. ++ 4-» Seed-face concave. Fruit linear-oblong, with conical stylopodium. 

 31 Chserophyllum. Fruit glabrous, with small mostly solitary oil-tubes. 

 32. Osmorrhiza. Fruit bristly, with oil-tubes obsolete. 



^_ H_ 4_ Carpels (as well as fruit) strongly flattened laterally. 

 ++ Seed lunate, deeply sulcate on the face : umbels compound, leafy-bracted. 

 SS. £rigenia. Fruit nearly orbicular, with numerous oil-tubes. Low, nearly acaulescent 

 from a deep-seated tuber. Leaves ternately decompound. 



