298 COXXECTICUT GEOL. AND NAT. HIST. SURVEY. fBuU. 



Lyme and Old Lyme (Graves), Guilford (G. H. Bartlett), 

 New Haven (C. Wright), Hamden and Litchfield (D. C. 

 Eaton), Oxford (Harger), Ridgefield (Eames). June ^ 

 Sept. 



Hydrocotyle americana L. 



Common. Moist woods and shaded places and in bogs. 

 June — Sept. 



OSMORHIZA Raf. Sweet Cicely. 



Osmorhiza Claytoni (Michx.) Clarke. 

 Osmorhisa brevistylis DC. 

 Washingtonia Claytoni Britton. 

 Sweet Cicely. 



Rocky woods. Rare in the eastern part of the state, be- 

 coming occasional or frequent westward. Late May — June. 

 The roots are less aromatic than those of Osmorhisa 

 longistylis. 



Osmorhiza longistylis (Torr.) DC. (long-styled). 

 Washingtonia longistylis Britton. 

 Sweet Cicely. Anise-root. Sweet Chervil. 



Frequent. Rich woods, thickets and fence-rows. May — 

 June. 



An aromatic oil is obtained from the root. 



CONIUM L. Poison Hemlock. 



Conium maculatum L. (spotted). 

 Poison Hemlock. Spotted Parsley. 



Rare. Roadsides and waste places : Groton and New 

 London (Graves), Oxford and Woodbury (Harger), Bridge- 

 port (Eames), Sharon (Bissell), Salisbury (Mrs. C. S. 

 Phelps, Bissell). June — Aug. Naturalized from Europe. 



An actively poisonous plant well known as the Hemlock of 

 the ancients. The fruit and leaves are medicinal, the first 

 named officinal. Cases of accidental poisoning to man have 

 arisen from mistaking the seed for anise seed, the leaves 

 for those of parsley, and the root for parsnips. The seed 

 has been found to some extent as an adulterant of anise seed. 



