FLORA OF WORCESTER COUNTY. 65 



ebeneum, Ait. Common. 



thelypteroides, Michx. 



Filix-fcemina, Bernh. " 



PHEGOPTERIS, Fe"e. Beech Fern. 



polypodioides, Fee. Damp woods. 



hexagonoptera, Fe"e. 



Dryopteris, Fe"e. 

 ASPIDIUM, Swartz. Shield Fern. 



Thelypteris, Swartz. Woodlands, common. 



Noveboracense, Swartz. " " 



spinulosum, Swartz, var. intermedium, D. C. Eaton. 



Common. 



cristatum, Swartz. Quite " 



" " var. Clintonianum. Worcester. 



Goldianum, Hook. Spencer. Miss A. E. Tucker. 



marginale, Swartz. Rich woods, common. 



acrostichoides, Swartz. Christmas Fern. " 



CYSTOPTERIS, Bernh. Bladder Fern. 



fragilis, Bernh. Worcester. 



ONOCLEA, L. Onoclea. 



sensibilis, L. Sensitive Fern. Very common. 



" " var. *obtusilobata. Princeton. 



W. W. B. 6-/. F. C. 



Struthiopteris, Hoffm. Ostrich Fern. Worcester. 



WOODSIA, R. Br. Woodsia. 



Ilvensis, R. Br. Spencer. Miss A. E. Tucker. 



obtusa, Torr. Miss Wheelock. 



DICKSONIA, L'Her. Dicksonia. 



pilosiuscula, Willd. Moist shady places, common. 



