PLANTS OF RHODE ISLAND. 57 



ASPLENIUM, L. Spleexwort. 



1. Trichomanes, L. 



2. Ebeneum, Ait. 



3. thelypteroides, Michx. 



4. Filix-foeraina, Bernh. 



PHEGOPTBRIS, Fee. Beech Fern. 



1. polypodioides, Fee. 



2. hexagonoptera, Fee. 



3. Dryopteris, Fee & var. 



ASPIDIUM, Swartz. Shield Fern. 



1. Thelypteris, Swartz. 



2. Noveboracense, Swartz. 



3. spinulosum, Swartz, var. intermedium. 



var. Boottii. 



4. cristatum, Swartz. 



var. Clintonianum. Cranston, Bennett. 



5. marginale, Swartz. 



6. acrostichoides, Swartz. 



var. incisum. 



CYSTOPTERIS, Bernhardi. Bladder Fern. 



1. bulbifera, Bernh. 



2. fragilis, Bernh. 



var. dentata, Hook. E. Greenwich, Bennett. 



ONOCLEA, L. 



1. Germanica, Hook. Ostrich Fern. First detected by Mr. 



Hunt. 



Struthiopteris, — , Willd. 



2. sensibilis, L. Sensitive Fern. 



var. obtusilobata. Hill's Grove, Bennett. 



WOODSIA, R. Br. 



1. obtusa, Torr. 



2. Ilvensis, R. Br. 



DICKSONIA, L'Her. 

 punctilobula, Kze. 



LYGODIUM, Swartz. Climbing Fern. 

 palmatum, Swartz. 



O S M U N D A , L. Flowering Fern. 



1. regalis, L. Pride of the Meadows. 



2. Claytoniana, L. 



3. cinnamomea, L. 



var. frondosa. Johnston. 



