Ord 7. CRUCIFERA 



1. NASTUETIUM,^.5r. 



1. Nasturtium palustre, DC. 



Hab. Wet grounds, Oregon and California ; common all round the 

 northern hemisphere. 



2. Nasturtium curvisiliqua, Nutt. 



Hab. Shady wet places in the Nez Perce country, Rev. Mr. Spald- 

 ing. The siliques are not mature, but the plant agrees very well with 

 original specimens of this species received from Mr. Nuttall. 



3. Nasturtium lyratum, Nutt. 



Hab. Damp soils on the Upper Sacramento, California. — Our speci- 

 mens differ from NuttalPs in the leaves being only coarsely toothed, 

 instead of lyrate or pinnatifid with toothed segments. 



2. BARBAREA, R.Br. 



1. Barbarea vulgaris, R. Br. 



Hab. Moist places, Puget Sound; and along watercourses in the 

 Nez Perce country. On the Satchap River, Washington Territory. 

 The latter one of the forms commonly referred to B. prcecox, R. Br. 



