7^8 REPORT OF THE FLORA. 



Arabis, L. (Rock Cress.) 



A. lyrata, L. Rocky woods, not rare. 

 A. dentata, Torr & Gray. Frequent. 

 A. laevigata, DC. Common. 



A. Canadensis, L. Frequent throughout. 



Tarbarea, R. Br. (Winter Cress.) 



B. vulrraris, R. Br. Too common ; a troublesome weea. 



B. prcecox, R. Br. (Early Winter Cress.) (Scurvy Grass,) escaped from culti- 

 vation — Riverdale, (Bicknell.) 



Sysymbrium, L. (Hedge Mustard.) 



S. officinale, Scop. About dwellings. (Nat. Eu.) 



S. Thaliana, Gaud. About dwellings. (Nat. Eu.) 



S. Alliaria, Brown. Kings Bridge-. (Bicknell — Adv. Eu.) 



Hesperis, L. 



H. matronalis. L. Introduced from Europe. (Bicknell.) 



Brassica, Toum. (Mustard,) 



B. Sinapistram. Boissier. Cultivated grounds. (Adv. Eu.) 



B. alba, Gray. In cultivated grounds. (Adv. Eu.) 



B. nigra. Gray. Cultivated grounds. (Adv. Eu.) 



B. campestris, L. Escaped from cultivation. (Bicknell.) 



B. olcracea, L. Escaped from cuUivatiou. (Bicknell.) 



Draba, L. (Whitlow Grass.) 



D. Caroliniana, Walt. Not rare. 



D. verna, L. Mott Haven, along the railroad. 



Camelina, Crantz. (False Flax.) 



C. sativa, Crantz. Cultivated grounds. (Adv. Eu.) 



Capsella, Vent. (Shepherd's Purse.) 



C. Bursa-pastoris, Moench. About dwellings. (Nat. Eu.) 



Lepidium, L. (Pepper Grass.) 



L. Virginicum, L. About dwellings ; used sometimes for salad. 

 L. campestre, L. Bicknell. (Nat. Eu.) 



Bapbanus, L. (Radish.) 



El. Raphanistrum, L. Common, and troublesome weed. (Adv. Eu.) 

 Ep. sativus. L. Escaped from cultivation. (Bicknell.) 



Order 11.— CAPPAEIDACEiE. (Caper Family*) 

 Polanisia, Raf. 



P. graveolens, Raf. Peekskill, (Mead.) 



