Adiantaceae (Maidenhair Family) Maidenhair Fern - Adiantum pedatum Aspleniaceae ( Spleenwort Family) Pinnatifid Spleenwort -Asplenium pinnatifidum Ebony Spleenwort - Asplenium platyneuron Maidenhair Spleenwort - Asplenium trichomanes Northern Lady Fern -Athyrium felix-femina Glade-fern - Athyrium pycnocarpon Silvery Spleenwort, Silvery Glade-fern - Athyrium thelypteroides Walking Fern - Asplenium rhizophyllum Bulblet Bladder Fern - Cystopteris bulbifera Fragile Fern - Cystopteris fragilis Lowland Fragile Fern - Cystopteris protrusa Intermediate Shield Fern - Dryopteris intermedia Marginal Shield Fern - Dryopteris marginalis Spinulose Shield Fern - Dryopteris spinulosa Ostrich Fern - Matteuccia struthiopteris------not reported in KN Sensitive Fern - Onoclea sensibilis Christmas Fern - Polystichum acrostichoides

Blechnaceae (Chain Fern Family) Virginia Chain Fern - Woodwardia virginica Dennstaedtiaceae (Bracken Family) Hay-scented Fern - Dennstaedtia punctilobula Bracken Fern - Pteridium aquilinum Ophioglossaceae (Adder s Tongue Family) Common Grape-fern - Botrychium dissectum Blunt-lobed Grape-fern - Botrychium oneidense Rattlesnake Fern - Botrychium virginianum Osmundaceae (Royal Fern Family) Cinnamon Fern - Osmunda cinnamomea Interrupted Fern - Osmunda claytoniana Polypoidiaceae (Polypoid Family) Rock-cap Polypody - Polypodium virginianum Thelypteridaceae (Marsh Fern Family) Broad Beech Fern - Thelypteris hexagonopteral New York Fern - Thelypteris noveboracensis Marsh Fern - Thelypteris palustris Long Beech Fern -Thelypteris phegoteris