UMBELLIFERAE (CARROT FAMILY) 



15 a Plant growing in salt marshes; fruit ovate 



15. Ptilimnium. p 193 

 b Plants not growing in salt marshes 16 



16 a Fruit globose; plant cultivated for the fruit 



13. Coriandrum. p 193 

 b Fruit oblong, slightly curved ; plant in waste places, 



sometimes cultivated for the fruit. . 12. Carum. p 193 



17 a Stout plant 4-8 ft. high; leaves often 1-2 ft. broad; 



fruit V-Vz in. long, oval to obovate, flattened 



21. Heracleum. p 193 

 b Plants not completely as in a 18 



1 8 a Plant cultivated for the succulent petioles 



23. Apium. p 193 

 b Plants not completely as in a 19 



19 a Leaves 3-foliolate; fruit about % in. long, oblong, often 



curved, narrowed at each end.... u. Deringa. p 193 

 b Plants not completely as in a 20 



20 a Fruit about ^4 in. long, broadly oval with double- 



winged margin; leaflets 1-2 in. long 19. Angelica, P 193 

 b Plants not completely as in a 21 



21 a Fruit linear-oblong 3. Chaerophyllum. p 193 



b Fruit oval or ovate 22 



22 a Stem deeply furrowed, green; leaflets linear or lanceo- 



late 14. Slum, p 193 



b Stems not furrowed, often purple spotted 23 



23 a Leaflets linear to lanceolate; calyx teeth prominent 



9. Cicuta. p 193 

 b Leaflets ovate in outline; calyx teeth wanting 24 



24 a Stem purple-spotted ; ribs of fruit wrinkled 



5. Conium. p 193 

 b Stem not purple-spotted ; ribs of fruit not wrinkled 



10. Aegopodium. p 193 

 i HYDROC6TYLE. 



i a Leaves with petiole attached to under side of blade; 

 umbels many-flowered 



MANY-FLOWERED MARSH PENNYWORT. (H. umbellata.) 

 b Leaves with petiole attached to margin of blade; umbels 

 i-5-flowered 



AMERICAN MARSH PENNYWORT. (H. americana.) 

 z SANfCULA. 



1 a In fruit styles longer than the bristles . 2 



b In fruit styles shorter than the bristles 3 



2 a Mature fruit % in. long, sessile; flowers greenish-white 



BLACK SNAKE-ROOT. (S. maryldndica.) 

 b Mature fruit less than */4 in. long, very short-stalked ; 



flowers yellow CLUSTERED SNAKE-ROOT. (S. gregaria.) 



192 



