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

Hymenophyllum tunbrigense

Common name

Tunbridge filmy fern

Hymenophyllum tunbrigense Tunbridge filmy fern
© Copyright
Natural History Museum
Latin names
ClassPteridopsida
OrderHymenophyllales
FamilyHymenophyllaceae
GenusHymenophyllum
Speciestunbrigense
Geographic details
Habitatsteep rock faces high humidity low altitude
Soil typeacidic
DistributionW England Ireland
NativeYes

Ophioglossum azoricum

Common name

Small adder's tongue

Ophioglossum azoricum Small adder
© Copyright
Natural History Museum
Latin names
ClassPsilotopsida
OrderOphioglossales
FamilyOphioglossaceae
GenusOphioglossum
Speciesazoricum
Geographic details
HabitatMaritime
Soil typealkaline
DistributionN and W Britain
NativeYes

Pilularia globulifera

Common name

Pillwort

Pilularia globulifera Pillwort
© Copyright
Natural History Museum
Latin names
ClassPteridopsida
OrderSalviniales
FamilyMarsileaceae
GenusPilularia
Speciesglobulifera
Geographic details
HabitatLake margin
Soil typeacidic
Distributionscattered
NativeYes