REPORT OF THE STATE BOTANIST 1902 101 



Barbarea barbarea (L.) MacM. 

 B. vulgaris var. a r c n a t a Gray 



Yellow rocket 



Fields. Coinnioii. ^lay-lune. Youii^ plants are sometimes 



used for a pot herb. 



Barbarea stricta Andrz. 



B. vulgaris var. stricta Gray 



Erect- fruited winter cress 



Fields aud waste places. Frequent. ^Fay-June. 



Roripa sylvestris (L.) Bess. 



Nasturtium sylvestre K. Br. 



Creeping yellow water cress 



Shores of the Susquehanna at Apalachin. Rare. Summer. 



Roripa palustris (L.) Bess. 

 Nasturtium palustre DC. 

 Marsh ivater cress 

 Wet places, specially along the river. Common. Summer. 



Roripa hispida (Desv.) Britton 

 Nasturtium palustre var. h i s p i d u m Gray 

 With the last but less common. Summer. 



Roripa nasturtium (L.) Riisby 

 Nasturtium officinale R. Br. 

 Water cress 

 In brooks and small streams. Frequent. May-November. 



Roripa armoracia (L.) A. S. Hitchcock 

 Nasturtium armoracia Fries 



Horse radish 

 W^aste places and along streams. Common. Summer. 



Cardamine pennsylvanica Mnhl. 

 Pennsylvania hitter cress 

 Swamps and wet places. Common. May- June. 



Cardamine bulbosa (Schreb.) B. S. P. 

 C. rhomboidea DC. 



Bulbous cress 

 Damp fields and thickets. Common. May-June. 



