REPORT OF THE STATE BOTANIST 1902 101 



Barbarea barbarea (L.) MaeM. 



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



Yellow rocket 



Fields. Common. May-Jnne. Young plants are sometimes 



used for a pot herb. 



Barbarea stricta Andrz. 



B. vulgaris var. stricta Gray 



Erect-fruited winter cress 



Fields and waste places. Frequent. ISIay-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 p a 1 u s t r e DC. 

 Marsh loater cress 

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



Roripa hispida (Desv.) Britton 

 Nasturtium p a 1 u s t r e var. hispid um Gray 

 With the last but less common. Summer. 



Roripa nasturtium (L.) Rusby 

 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 

 Waste places and along streams. Common. Summer. 



Cardamine pennsylvanica Muhl. 

 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. 



