74 



Athyrium angustiim (Willd.) Presl. 

 Athyrium angusfjim var. elafius (Link) 



Butters 

 Athyrium angustum var. ruheUum (Gilbert) 



Butters 

 Athyrium angustum f. elegans (Gilbert) 



Butters 

 Athyrium thelypteroides (Michx.) Desv. 

 Camptosorus rhisophyllus (L.) Link 

 Polystichum acrostichoides (Michx.) Schott 

 Dryopteris Thelypteris (L.) A. Gray 

 Dryopteris simulata (Davenp.) Underw. 

 Dryopteris noveboracensis (L.) A. Gray 

 Dryopteris marginalis (L.) A. Gray 

 Dryopteris marginalis f. elegans (Robinson) 



F. W. Gray 

 Dryopteris marginalis f. tripinnatifida Clute 

 Dryopteris Boottii (Tuckerm.) Underw. 

 Dryopteris cristata (L.) A. Gray 

 Dryopteris cristata var. Clintoniana 



(D. C. Eaton) Underw. 

 Dryopteris spinal osa (Muell.) Kuntze 

 Dryopteris spinulosa var. intermedia 



(Muhl.) Underw. 

 Dryopteris hexaganoptera (Michx.) C. Chr. 

 Dryopteris Phegopferis (L.) C. Chr. 

 Dryopteris Linnaeana C. Chr. 

 Cystopteris bulbifera (L.) Bernh. 

 Cystopteris fragilis (L.) Bernh. 

 Woodsia ilvensis (L.) R. Br. 

 Woodsia obtusa (Spreng.) Torr. 

 Dennstaedtia punctilobula (Michx.) Moore 

 Onoclea sensibilis L. 

 Onoclea sensibilis var. obtusilobata 



(Schkuhr.) Torr. 

 Pteretis nodulosa (Michx.) Nieuwl. 



Lady-fern 



Silvery Spleenwort 

 Walking-fern 

 Christmas Fern 

 Marsh Shield-fern 

 Massachusetts Shield-fern 

 New York Fern 

 Marginal Shield-fern 



Boot's Shield-fern 

 Crested Shield-fern 



Clinton's Shield-fern 

 Spinulose Shield-fern 



Broad Beech-fern 

 Long Beech-fern 

 Oak-fern 



Bulblet Cystopteris 

 Brittle Fern 

 Rusty Woodsia 

 Blunt-lobed Woodsia 

 Hay-scented Fern 

 Sensitive Fern 



Ostrich Fern 



Schizaeaceae 

 Lygodium palmatnin (Bernh.) Sw. Climbing Fern 



Osmundaceae 



Osnninda regalis var. spcctabilis (Willd.) 



A. Gray Royal Fern 



Osmiinda Clatoniana L. Interrupted Fern 



Osniuiida cinnamomca L. Cinnamon Fern 



Osmiinda cinnamomca var. incisa 



(J. W. Huntington) Gilbert 



