e Fern. _Onoclea sensibilis_
Ostrich Fern. _Onoclea Struthiopteris_
Interrupted Fern. _Osmunda Claytoniana_
Climbing Fern. _Lygodium_
Flowering Fern. _Osmunda regalis spectabilis_
Adder's Tongue. _Ophioglossum_
Grape Fern. _Botrychium_
Polypody. _Polypodium_
Beech Fern. _Phegopteris_
Cloak Fern. _Notholaena_
Filmy Fern. _Trichomanes_
Bracken. _Pteris_
Maidenhair. _Adiantum_
Cliff Brake. _Pellaea_
Lip Fern. _Cheilanthes_
Rock Brake. _Cryptogramma_
Chain Fern. _Woodwardia_
Shield Fern. _Polystichum_
Wood Fern. _Aspidium_
Bladder Fern. _Cystopteris_
Woodsia
Hayscented Fern. _Dennstaedtia_
Hart's Tongue. _Scolopendrium_
Walking Fern. _Camptosorus_
Asplenium Type
Athyrium Type
Sporangia of the Five Families
Indusium
Common Polypody. _Polypodium vulgare_
Sori of Polypody
Polypody in mass (Greenwood)
Gray Polypody. _Polypodium incanum_
Brake. Bracken. Sterile Frond
Bracken. Fertile Frond
Bracken, var. _pseudocaudata_
Spray of Maidenhair
Sori of Maidenhair
Maidenhair. _Adiantum pedatum_
Alpine Maidenhair
Venus-Hair Fern. _Adiantum capillus-veneris_
Purple Cliff Brake. _Pellaea atropurpurea_
Dense Cliff Brake. _Cryptogramma densa_
Slender Cliff Brake. _Cryptogramma Stelleri_
Parsley Fern. _Cryptogramma acrostichoides_
Alabama Lip Fern. _Cheilanthes alabamensis_
Hairy Lip Fern. _Cheilanthes lanosa_
Slender Lip Fern. _Cheilanthes Feei_
Pinnae of Slender Lip Fern
Powdery Cloak Fern. _Notholaena dealbata_
Common Chain Fern. _Woodwardia virginica_
Net-veined Chain Fern. _Woodwardia areolata_
The Spleenworts
Pinnatifid Spleenwort. _Asplenium pinnatifidum_
Scott's Spleenwort. _Asplenium ebenoides_
Green Spleenwort. _Asplenium viride_
Maidenhair Spleenwort. _Asplenium Trichomanes_
Maidenhair Spleenwort. _Asplenium Trichomanes_ (Fernery)
Ebony Spleenwort. _Asplenium platyneuron_
Bradley's Spleenwort. _Asplenium Bradleyi_
Mountain Spleenwort. _Asplenium montanum_
Rue Spleenwort. _Asplenium Ruta-muraria_
Rootstock of Lady Fern (Two parts)
Sori of Lady Fern. _Athyrium angustum_
Varieties of Lady Fern
Lowland Lady Fern. _Athyrium asplenioides_
Silvery Spleenwort. _Athyrium acrostichoides_
Narrow-leaved Spleenwort. _Athyrium angustifolium_
Pinnae and Sori of _Athyrium angustifolium_
Sori of _Scolopendrium vulgare_
Hart's Tongue. _Scolopendrium vulgare_
Walking Fern. _Camptosorus rhizophyllus_
Christmas Fern. _Polystichum acrostichoides_
Varieties of Christmas Fern
Braun's Holly Fern. _Polystichum Braunii_