200 UMBELLIFER^. (PARSLEY FAMILY.) 



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



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



uierous. Smooth perennials, with large compound leaves. 



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



tary. Introduced annual. 



14. Coelopleurum. Ribs thick, corky (mostly obtuse). Oil-tubes solitary, adherent to 



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



■t- -1- -»- Dorsal ribs filiform, the lateral very thick and corky ; oil-tubes solitary. 



■^5. Crantzia. Small glabrous creeping peremiials, 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. Foeniculitm. Ribs prominent Oil-tubes solitary. Stout aromatic herb, with filiform- 



dis.sected 'eaves 



17. Piinpinella. Ribs filiform. Oil-tubes numerous. Glabrous perennials, with com- 



pound leaves. 

 ++ ++ Seed-face concave ; flowe:s white (yellow in n. 20) ; ribs filifoi-m or obsolete. 



l^. Eulophus. Oil-tubes numerous. Stylopodium conical. Glabrous perennials from 



fascicled tubers, with pinnately compound leaves. 

 \0. Anthriscas. Fruic linear, long-beaked, without ribs or oil-tubes, and with conical 



stylopodium. Leaves ternately decompound. 

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

 podium. Leaves simple, perfoliate. 



-1- +- Carpels terete or slightly flattened laterally ; flowers white (except n. 24). 

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

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

 31. Cryptotienia. Ribs obtuse, equal ; fruit linear-oblong. 



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

 £2. Sium. Fruit ovate to oblong ribs prominent, corky, nearly equal. 

 2.S. 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 j-ellow. 



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

 filif<inn. Roots tuberous. 



2G. Cicuta. Ribs flattish, corky, the lateral largest. Marsh perennials, with serrate leaf- 

 lets, the veins often running to the notches. 



27- .^gopodium. Ribs filiform ; oil-tubes none ; stylopodium conical. Leaves bitern ate. 



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



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



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



4+ 4+ 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. 



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



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



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



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

 ■H- Seed lunate, deeply sulcate on the face ; umbels compound, leafy-bracted. 



33. Erigenia. Fruit nearly orbicidar, with numerous oil-tubes. Low, nearly acaulescent. 



from a deep-seated tuber. Leaves ternately decompound. 



