200 FLORA OF WASHINGTON AND VICINITY. 



1217. Pteris aquilina, L. 



2.218. Adiantum pedatum, L. 



3.219. "WoodTArardia angustifolia, Smith. 

 JL220. Woodvrardia Virginica, Smith. 

 3.221. Asplenium Trichomanes, L. 



1222. Asplenium ebeneum, Ait. 



1223. Asplenium angustifolium, Michx. 

 1.224. Asplenium thelypteroides, Michx. 



1225. Asplenium Pilix-foemina, Bornh. 



1226. Caiiiptosoius rMzophyllus, Link. 



1227. Phegopteris hexagonoptera, Fee. 



1228. Aspidium Noveboracense, Swartz. 



1229. Aspidium Thelypteris, Swartz. 



1230. Aspidium cristatum, Swartz. 



1231. Aspidium Goldiauum, Hook. 



1232. Aspidium Filix-mas, Swartz. 



1233. Aspidium marginale, Swartz. 



1234. Aspidium spinulosum, Swartz, var. intermedium, Willd. 



1235. Aspidium acrostichoides, Swartz. 



1236. Cystopteris fragilis, Beroh. 



1237. Onoclea sensibilis, L. 



1238. "Woodsia obtusa, Torr. 



1239. Dicksonia pilosiuscula, Willd. 



