256 



UMBELLIFERAE. 



Stylopodium conical; bristles not 



barbed. 



Carpels oblong or ovate. 341. 



Carpels linear. 342. 



Fruit glabrous, not at all bristly. 



Carpels strongly flattened dorsally. 



Stylopodium conical ; petals obcordate. 343. 

 Stylopodium flat or obsolete. 



Plants acaulescent. 344. 



Plants caulescent. 



Flowers white; dorsal ribs of 



fruit prominent. 

 Ultimate segments of leaves 



large. 345. 



Ultimate segments of leaves 



small. 346. 



Flowers yellow or purple; dor- 

 sal ribs of fruit filiform. 

 Flowers yellow. 347. 



Flowers brownish-purple. 348. 

 Carpels not dorsally flattened. 



Oil-tubes obsolete or very obscure. 



Leaves ternately decompound. 342. 



Leaves simple, peltate. 349. 



Oil-tubes present; leaves not peltate. 

 Fruit with a single oil-tube in each 



interval. 

 Stylopodium conical. 



Leaflets lanceolate to ovate. 

 Leaflets linear. 



Involucre wanting. 351. 



Involucre present. 352. 



Stylopodium flat or obsolete. 

 Flowers yellow; leaves sim- 

 ple or trifoliolate. 353. 

 Flowers white. 



Leaves decompound. 354. 



Leaves reduced to hol- 

 low petioles. 355. 

 Fruit with more than one oil-tube 



in each interval. 

 Stylopodium conical. 



Fruit globose. 356. 



Fruit oblong. 357. 



Stylopodium flat or obsolete. 

 Ribs of the fruit wing-like. 

 Ribs of the fruit not wing- 

 like. 

 Plants acaulescent. 



Fruit with all the 

 ribs filiform; root 

 not tuberous. 

 Fruit with the dorsal 

 ribs filiform, the 

 lateral ones corky; 

 root tuberous. 



CAUCALIS, 258. 

 OSMORHIZA, 259. 



HERACLEUM, 260. 

 COGSWELLIA, 260. 



ANGELICA, 261. 

 CONIOSELINUM, 262. 



PASTINACA, 262. 

 LEPTOTAENIA, 263. 



OSMORHIZA, 259. 

 HYDROCOTYLE, 263. 



350. CICUTA, 263. 



CORIANDRUM, 264. 

 CARUM, 264. 



ZIZIA, 265. 

 OENANTHE, 265. 

 LILAEOPSIS, 265. 



BERULA, 266. 

 LIGUSTICUM, 266. 



358. GLEHNIA, 267. 



359. HESPEROGENIA, 267. 



Plants caulescent; ribs 



360. OROGENIA, 267. 



