William Tanneberger:
Aspidiaceae: Dryopteris celsa - Log Fern
William Tanneberger:
Aspleniaceae : Asplenium platyneuron - Ebony Spleenwort
William Tanneberger:
Aspleniaceae : Asplenium platyneuron - Ebony Spleenwort
William Tanneberger:
Dryopteridaceae : Polystichum acrostichoides - Christmas Fern fiddlehead
William Tanneberger:
Dryopteridaceae : Polystichum acrostichoides - Christmas Fern fiddlehead
William Tanneberger:
Dryopteridaceae : Polystichum acrostichoides - Christmas Fern
William Tanneberger:
Dryopteridaceae : Polystichum acrostichoides - Christmas Fern
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake)
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake)
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake) fiddlehead
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake)
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake) sterile frond
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake) sterile frond
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake)
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake) with emerging fertile fronds (dark brown)
William Tanneberger:
Onocleaceae : Onoclea sensibilis - Sensitive Fern (Bead Fern, Meadow Brake) fertile fronds
William Tanneberger:
Blechnaceae : Woodwardia areolata - Netted Chain Fern
William Tanneberger:
Blechnaceae : Woodwardia areolata - Netted Chain Fern
William Tanneberger:
Blechnaceae : Woodwardia areolata - Netted Chain Fern with fertile fronds
William Tanneberger:
Dennstaedtiaceae : Pteridium aquilinum - Bracken Fern frond
William Tanneberger:
Dennstaedtiaceae : Pteridium aquilinum - Bracken Fern
William Tanneberger:
Dennstaedtiaceae : Pteridium aquilinum - Bracken Fern
William Tanneberger:
Dennstaedtiaceae: Pteridium aquilinum - Bracken Fern
William Tanneberger:
Dennstaedtiaceae: Pteridium aquilinum - Bracken Fern
William Tanneberger:
Lygodiaceae : Lygodium palmatum - Hartford Fern (American Climbing Fern)
William Tanneberger:
Lygodiaceae : Lygodium palmatum - Hartford Fern (American Climbing Fern)
William Tanneberger:
Ophioglossaceae : Sceptridium (previously Botrychium) dissectum - Cutleaf Grapefern; Dissected Grapefern
William Tanneberger:
Ophioglossaceae : Sceptridium (previously Botrychium) dissectum - Cutleaf Grapefern; Dissected Grapefern
William Tanneberger:
Ophioglossaceae : Sceptridium (previously Botrychium) dissectum - Cutleaf Grapefern; Dissected Grapefern
William Tanneberger:
Ophioglossaceae : Sceptridium (previously Botrychium) dissectum - Cutleaf Grapefern; Dissected Grapefern
