12 FLORA OF THE UPPRR SUSQUEHANNA. 



A. glabra (L.) Bernh. Towkr Mustard. Not uncommon in the 

 eastern part of our range. Frequent, Coz>///e. Not rare, Graves. 

 Tolerably common, Clute. {A. per/oiiala l^SiVn.) 



A. lyrata L. Rocky hillsides, Ih'own. 



RORIPA Scoi'. 



R. Nasturtium (L.) Rusby. Water Crp:ss. Enclish Water 

 Cress. Not uncommon. Streams and ponds into which it be- 

 comes introduced are rapidly choked up by its luxuriant growth. 

 Frequently used as a salad July. ( Nastitrtiiiin ojric/naU R. Br. ) 



R. palustris (L. ) Bess. Marsh Cress. Notfrequent. The typ- 

 ical glabrous form with oblong pods is reported from the banks 

 of the Chemung river only, Lucy. {Nasturtium paliistf-e DC.) 



R. hispida (Desv.) Britton. Marsh Cress. Common on river 

 shores and in open swamps. This species is commonly recorded 

 under A'', palustris. but it is quite evident that it belongs rather 

 to the variety hispidum of Gray's Manual, 6th edition. June. 

 July. {Xasturtiutn palustre DC, var. hispidum.) 



R. Armoracia (L. ) A. S.Hitchcock. Hijrseradish. A common 

 escape along streams and in wet places near dwellings. Appar- 

 ently spreading. {Nasturtium Armoracia Fries.) 



BARBAREA R. Br. 



B. Barbarea (L. ) Mac M. Yellow Rocket. Common Winter 

 Cress. Very abundant in cultivated fields, along roadsides and 

 other waste places. Sometimes used as a salad under the name 

 of " poor man's cabbage." May. June. {B. vu/j^aris \<. Br.) 



B. praecox (J. E. Smith.) R. Br. Early Winter Cres.s. Sclrvy 

 Ok.ass. One station only — Vestal, ^. Y., Mi/ispaug/i. 



iii:sim-:ris l. 



H. matronalls L. D.\me's Violet. Rocket. A rare escape that 

 seems to be spreading. One station ; scarce, Lucy. Not com- 

 mon, I'cnno. Plentiful along the banks of the Chenango and 

 Susquehanna near Binghamton, Clute. Rare near Ilallstead, 

 Graves. Not reported fiom the Chenango valley. Flowers 

 large, white or purplish ; fragrant. May. June. 



