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. _Pellæa 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 Féei_
Pinnæ of Slender Lip Fern
Powdery Cloak Fern. _Notholæna 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_