Fern Fossil
Theodore Clutter
Fern Pteridium Rhizome, Lm
Garry DeLong
Caddo Lake, Texas #2
Gregory G. Dimijian, M.D.
Fern Patterns
Michael Lustbader
Fern Sperm
Winton Patnode
Fern Vascular Bundles, Polarized Lm
Marek Mis
Fern Vascular Bundle, Lm #1
Marek Mis
Fern Sporangium
Garry DeLong
Fern Sporangium #1
Garry DeLong
Fern Sorus Lm
Garry DeLong
Fern Vascular Bundles, Dark Field Plm
Marek Mis
Fern Vascular Bundles, Dark Field Plm #1
Marek Mis
Fern Vascular Bundles, Dark Field Plm #2
Marek Mis
Fern Vascular Bundles, Lm
Marek Mis
Fern Vascular Bundle, Lm
Marek Mis
Fern Vascular Bundle, Lm #2
Marek Mis
Fern Vascular Bundles, Lm #1
Marek Mis
Fern Vascular Bundle, Lm #3
Marek Mis
Fern Vascular Bundle, Lm #4
Marek Mis
Fern Vascular Bundle, Lm #5
Marek Mis
Path Through Aspens
James Steinberg
Staghorn Fern, Sem
Ted Kinsman
Staghorn Fern, Sem #1
Ted Kinsman
Staghorn Fern, Sem #2
Ted Kinsman
Cross-processed Ferns
F. Stuart Westmorland
Colorful Fern Sporangia
Gregory G. Dimijian, M.D.
Downward Growing Ferns, Idaho
Theodore Clutter
Mosses & Ferns
Hal Horwitz
New York Ferns
David Davis
Sensitive Ferns In Horsetails
Larry West
Blue Fiddlehead Of Uluhe Fern
Greg Dimijian
Northern Maidenhair Fern #1
Science Stock Photography
Fossil Seed Fern Leaf #1
Louise K. Broman
Fossil Seed Fern #1
Louise K. Broman
Fossilized Fern
Scott Camazine
Misty Tree Ferns
Fletcher & Baylis
Fossil Seed Fern
Louise K. Broman
Ernst Haeckel, Polypodiopsida, Ferns
Science Source
Cypress Swamp
Gregory G. Dimijian
Fern Fiddlehead, Costa Rica
Gregory G. Dimijian, M.D.
Mt. Hood National Forest
William H. Mullins
Fiddlehead #2
Paul Whitten
Rainforest On The Island Of Kauai
Kenneth Murray
Shadow Falls, Near The North Fork
Theodore Clutter
Fern Frond With Spider
Simon D. Pollard
Fern Leaf Stalk
M. I. Walker
Fern, X-ray #1
Ted Kinsman
Fern Sporangia
Perennou Nuridsany
Fern Sori
Perennou Nuridsany
Fern Fiddlehead
Perennou Nuridsany
Fern Leaf With Sori Sem
Biophoto Associates
Fern Fossil
Andrew J. Martinez
Fern Fiddlehead
Paul Zahl
Fern Frond
Martin Shields
Fern Rhizome, Lm
Garry DeLong
Fern Growing From Crack In Limestone #1
Ted Kinsman
Fern Close Up, Cork, Ireland
James Steinberg
Fern Spores, Sem #1
Meckes/ottawa
Fern Growing From Crack In Limestone
Ted Kinsman
Fern Tendril
Raul Gonzalez Perez
Fern Sperm Flagella Dismembered
Biophoto Associates
Fern Rhizome, Lm #1
Garry DeLong
Fern Leaf Fossil
Millard H. Sharp
Fern Prothallus, Lm
Science Stock Photography
Fern Archegonia
Robert Knauft / Biology Pics