ARNOLD ARBORETUM. 



that it is derived Z-:^o-i\ vJc^^ and o^<rj-V^ citisGii; Linnaeus ap:;areiitly 



thought that the "olant livod in the water; in Spec. PI. 146 he '?^l&e 

 in a note under Hydro ■oliyll-'.iri virprinianuin: '"'Kydrophyllum verura canadensiuwi, 

 in aquis natuia aiversisissina ^lanta" and later he quotes Hydrophylluui 

 vermn as a synonyin to Hydrastis. Or possibly the name is derived from 

 u<^«'fx/t^ya plant -ncuae used by Dioscorides. 



Hoping that the precedin'^ notes villi help you to forn an o'oinion 

 a tout the etjoriology 01' iiydrastis I remain 



Youre sincerely 



