154. 
6. Umbels regular; flowers yellow; calyx 
teeth and involucels prominent; fruit 
oblong or oval. Expected (Zizia). 
4, Leaves not palmately compound. 
7. Leaves ternately compound or decompound. 
Expected (Zizia, Chaerophyllum, Osmorhiza). 
7. Leaves pinnate or pinnately decompound. 
8. Plants annual. 
9. Plants glabrous; leaf segments filiform; 
fruits glabrous; involucral bracts 
pinnately parted...... sfejevotehevehel ofelishonelio sete bitten mmentim 
9. Plants rough-pubescent; leaf segments 
lanceolate; fruits with hooked bristles; 
involucral bracts small, lanceolate, 
sometimes absent. Expected (Torilis). 
8. Plants biennial or perennial. 
10. Plant pubescent. 
11. Plant bristly-hispid; involucre 
conspicuous, of leafy, pinnately 
parted bracts; fruit oblong, 
barbed-bristly on the winged 
GAlbSicveree's stotelet eter cheFovenen ene Selsiciuieisierseeee DACs 
11. Plant closely pilose above; 
involucre absent; fruit oval 
or ovate, pubescent (not barbed), 
winged laterally, flattened 
dorsally. Expected (Angelica). 
10. Plant glabrous. 
12. Flowers yellow; plants mesophytic, 
in fields, etc. Expected (Pastinaca). 
12. Flowers white; plants hydrophytic, 
poisonous. 
13. Fruit wavy-ribbed; involucre 
and involucels of ovate- 
acuminate bracts; calyx teeth 
absent. Expected (Conium). 
