20 Annus oi ihk Carnegie Museu.m. 



NYMPH^ACE^ De Candolle. 



W A TKR-I-IIA' FAMIIA'. IV-22. 



CASTALIA Salisbury. 



NYMPHS A ^J ournefort . 



^ C. odorata (Dryander). White water-lily. 



N. fldorata Alton. 



§ C. tuberosa (Paine). Tuberous water-lily. 

 N. tiiherosa Paine. 



NYMPHiZEA Pinn;eus. 



NUPHAR Smith. 

 Jj N. advena Solander. Yellow pond-lily. 

 Nupliar advena Alton. 



Note. — None of the water-lilies have been reported from .Alle- 

 gheny County. 



SARRACENIACEiE La Pylaie. 



PITCHER-PLANT FAMILY. IV-35. 



SARRACENIA Linnsus. 



^ S. purpurea Linn;eus. Pitcher-plant. 



In the absence of bogs, we can scarcely hope to find it in Alle- 

 gheny County. 



PAPAVERACE^ B. Jus.sieu. 



POPPY FAMILY. IY-31. 



SANGUINARIA I,inn;i;us. 

 * S. Canadensis Linn?eus. Bloodroot. 



STYLOPHORUM Nuttall. 

 t S. diphyllum ( Michaux). N'ellow popi)y. 



