Flowering Plants. 



NYMPHAEACEAE. 



Nymphsea L. 



odorata, Ait. Wliite Pond Lily. 

 Nuphar Sm. 



advena, Ait. Yellow Water Lily. 



kalmiana, Ait. 



HYDRO PELTIDEAE. ■ 



Hydropeltis Mx. 



purpurea, Mx. Water Shield. 



PODOPIIYLLEAE. 



Podophyllum L. 



peltatum, L. May Apple. 



CRUCIFERAE. 



Arabis L. 



falcata, Mx. Canadensis, W. 



hastata, L. Hairy Tower Mustard. 



hirsuta, Smith. 



rhomboid ea, Ph. B. 



thaliana, L. Spring Cress. B — e. 

 Barbarea R. Brown. 



vulgaris, R. B. Erysimum barbarea, L. Water Radish. 

 Brassica L. 



§ napus, L. Kale. 

 Cakile. L. 



maritima, Nutt Bunias maritima, Ph. B. Am. Sea Rocket. 

 Cardamine L. 



Pennsylvania, W. Water Cress. 



Virginica, W. B — e. 



teres 1 Mx. A. Dr. G. White. 

 Cochlearia L. 



§ armoracea, L. Horse Radish. 

 Dentaria L. 



diphylla, Mx. Tooth Root. A. 



laciniata, W. A. 



Draba L. 



verna, L. N. B. Bigelow. 

 Erysimum L. 



officinale, L. Hedge Mustard 

 Leipidium L. 



Virginicum, L. Wild Peppergrass. 

 Raphanus L. 



§ raphanistrum, L. Cadlock, Wild Radish. 

 Sinapis L 



§ nigra, Smith. Mustard. 

 Sisymbrium L. 



amphibium, L. Water Radish. 



nasturtium, L. English Water Cress, 



Thlaspi L. 



bursa-pastoris, L. Shepherd's Purse 

 campestris, L. Yellowseed. 



