Shafer : Vascular Flora of Allegheny County. 21 



CHELIDONIUM Linriceus. 



* C. majus Linnaeus. Celandine. 



PAPAVER Linnaeus. 

 ^ P. somniferum Linnaeus. Common poppy. 



II P. dubium Linnaeus. Long smooth-fruited poppy. 

 Pittsburgh, Bailey Ave., July, 1888. 



ARGEMONE Linnteus. 

 f A. Mexicana Linnaeus. Prickly poppy. 



ADLUMIA Rafinesque. 



* A. fungosa (Alton). Alleghany vine. 

 A. cirrhosa Rafinesque. 



Shaler Township, P. & W. R. R. tunnel, Sept., 1886, Hon. J. 

 D. Shafer. 



BICUCULLA Adanson. 

 D /CENTRA Bernhardi. 



* B. Cucullaria (Linnceus). Dutchman's breeches. 

 Duentra Cucu/laria Gray. 



* B. Canadensis (Goldie). Squirrel-corn. 

 Dicentra Canadensis Gray. 



CAPNOIDES Adanson. 

 CORY DA LIS Ventenat. 



* C. sempervirens (Linnceus). Pale corydalis. 

 Corydalis glauca Pursh. 



Harrison Township, rocks, on roadside near John Parke's, July 

 8, 1900. 



f C. flavulum (Rafinesque). Yellow corydalis. 

 Corydalis flavula De Candolle. 



