UMBELLIFEROUS TRIBE. 



269 



ous, should not be allowed to grow in places where cattle 

 are kept, as instances are numerous in which cows have 

 been poisoned by eating the roots. 



CENANTH& CROcATA (Hemlock Water Dropwort). 



* (E. Phellandrium differs from the preceding in 

 laving the leaves divided into very fine segments, and 

 ibrous, not tuberous, roots. CE. pimpinelloides is a much 

 slenderer plant, with very narrow leaflets and small 

 vhite flowers crowded into round heads ; it grows in 

 narshes, both salt and fresh : CE. Lachindlii is allied 

 iO it, but has the umbels lax, and grows only in salt 

 narshes. CE. silaifolia resembles the last, but grows 

 n fresh water. 



