54 Annals of the Carnegik Museum. 



PIMPINELLA Linnxus. 

 -■'- P. integerrima (Linnxus). Yellow pimpernel. 



DERINGA Adanson. 

 CRYPTOT.ENIA De Candolle. 

 =1^ D. Canadensis (Linnaeus). Honewort. 



SIUM Linnaeus. 

 j S. cicutaefolium Gmelin. AVater-parsnip. 



ZIZIA Koch. 



* Z. aurea (Linnxus). Golden meadow-parsnip. 



* Z. cordata (Walter). Heart-leaved Alexanders. 



CICUTA Linn;^us. 



* C. maculata Linnxus. Spotted water-hemlock. 



CONIUM Linnxus. 

 '■• C. maculatum Linnxus. Poison hemlock. 



CH^ROPHYLLUM Linnxus. 



* C. procumbens (Linnxus). Spreading chervil. 



O'Hara Township, woods below railroad, near Aspinwall, May, 

 1900. 



WASHINGTONIA Rafinesque. 



OSMORRHIZA Rafinesque. 



'i^ W. Claytoni (Michaux). Woolly sweet-cicely. 

 O. brevistylis De Candolle. 



* W. longistylis (Torrey). Sweet-cicely. 



