22 Annals of the Carnegie Museum. 



* C. aureum (Willdenow). Golden corydalis. 

 Corxdalis aiirea Willdenow. 



FUMARIA Linnteus. 

 f F. officinalis Linncxus. Fumitory. 



CRUCIFER^ B. Jussieu. 



MUSTARD FAMILY. IV-32. 



DENTARIA Linnteus. 



* D. diphylla Michaux. Pepper-root. 



* D. laciniata Muhlenberg. Cut -leaved toothwort. 



II D. heterophylla Nuttall. Slender toothwort. 



Pittsburgh, 23d Ward, near Salt-works Station, 188S, Prof. W. S. 

 Jackman . 



CARDAMINE Linn^us. 

 f C. hirsuta Linnreus. 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 cress. 

 C. rJiomboidea De CandoUe. 



* C. rotundifolia Michaux. American water-cress. 



ARABIS Linnffius. 

 ^^ A. l3n:ata Linnaeus. Rock-cress. 



