22 Annals of the Carnegie Museum. 



* C. aureum (Willdenow). Golden corydalis. 

 Corxdalis aiitea Willdenow, 



FUMARIA Linnceus. 

 f F. officinalis T^innseus. Fumitory. 



CRUCIFERiE B. Jussieu. 



MUSTARD FAMILY. IV-32. 



DENTARIA Linn^us. 



* D. diphylla Michaux. Pepper-root. 



* D. laciniata Muhlenberg. Cut leaved tooth wort. 



II D. heterophylla Nuttall. Slender toothwort. 



Pittsburgh, 23d Ward, near Salt-works Station, 1888, Prof. W. S. 

 Jackman. 



CARDAMINE Linn^us. 

 f C. hirsuta Linn;^us. Hairy bitter-cress. 



* C. Pennsylvanica Muhlenberg. Pennsylvania bitter-cress. 



* C. purpurea (Torrey). Purple cress. 



South Fayette Township, near Marshalsea, May 11, 1900. 



''^- C. bulbosa (Schreber). Bulbous cre.ss. 

 C. rhoinboidea De Candolle. 



* C. rotundifolia Michaux. American water-cress. 



ARABIS Linn^us. 



* A. lyrata Linnceus. Rock-cress. 



