Pteridophyta or Ferns

Adder's tongue
Beech fern
In the British Isles the Phylum Pteridophyta is represented by about 64 native species which are taxonomically classified into two Classes, five Orders, fourteen Families and twenty-four Genera.

This site aims to clarify and explain these relationships and provide information about the native species found in the British Isles. There is a Ferns search facility which aims to ease identification of specimens and you can Browse a list of species.

The Ferns Taxonomy page attempts to explain taxonomic relationships and there is a searcheable Glossary.

If you click on any of the images of ferns on this page you will see a slideshow of images and there are some more images in the Image Gallery

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Hard shield-fern
Lady fern

Some random samples

Cystopteris dickieana

Common name

Dickie's Bladder Fern

Cystopteris dickieana Dickie
© Copyright
Natural History Museum
Latin names
ClassPteridopsida
OrderPolypodiales
FamilyAthyriaceae
GenusCystopteris
Speciesdickieana
Alternative Family nameCystopteridaceae
Geographic details
HabitatMaritime
Soil typealkaline
DistributionW Scotland
NativeYes

Cystopteris montana

Common name

Mountain Bladder Fern

Cystopteris montana Mountain Bladder Fern
© Copyright
Natural History Museum
Latin names
ClassPteridopsida
OrderPolypodiales
FamilyAthyriaceae
GenusCystopteris
Speciesmontana
Alternative Family nameCystopteridaceae
Geographic details
Habitatwet alpine N-facing
Soil typealkaline
DistributionW Scotland
NativeYes

Ophioglossum vulgatum

Common name

Adder's tongue

Ophioglossum vulgatum Adder
© Copyright
Natural History Museum
Latin names
ClassPsilotopsida
OrderOphioglossales
FamilyOphioglossaceae
GenusOphioglossum
Speciesvulgatum
Geographic details
HabitatWide range
Soil typealkaline
DistributionThroughout British Isles
NativeYes