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The Ferns Identifier for the British Isles
Learn about ferns, Identify your fern specimen.
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general
leaf arrangement
leaf bases
leaf lobes
leaf margins
leaf surface
leaf tips
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To search the glossary, start typing, then select a word from the list.
Word
Definition
bulbil
Vegetative reproductive body, usually axillary, with apical projections or leaf primordia
bullate
Blistered; inflated; puckered.
caducous
Readily falling off.
caespitose
Tufted, forming tufts.
calyptra
Structure developed from the venter of the archegonium covering the young capsule and at least the lid of older capsules, falling or not as capsule matures.
campanulate
Bell-shaped.
camptodrome
Veins running in parallel from base to tip
canescent
covered with gray or white soft hairs
capitulum
Head composed of crowded branches at stem tip of Sphagnum.
capsule
The spore-bearing structure of mosses usually differentiated into the theca or spore case and a basal sterile portion, the neck.
cartilaginous
Thick and tough, of border of incrassate elongated cells.
catenulate
Like a miniature chain in appearance.
caudate
With a long and thin tip.
cene
Continuous range or series.
central strand
Column of small elongated cells, sometimes with thicker walls, running through centre of stem.
cernuous
Drooping at an angle intermediate between horizontal and vertically downwards
channelled
With a groove formed by upturned margins.
chlorophyllose
With chloroplasts.
ciliate
Hair-like structures on leaf margins or alternating with the processes of the inner peristome; adj., ciliate.
circinate
Very strongly curved and forming a circle
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Ferns
Adiantaceae
Adiantum
Anogramma
Cryptogramma
Aspidiaceae
Dryopteris
affinis
Gymnocarpium
Polystichum
Aspleniaceae
Asplenium
obovatum
trichomanes
Athyriaceae
Athyrium
distentifolium
Cystopteris
Woodsia
Azollaceae
Azolla
Blechnaceae
Blechnum
Dennstaedtiaceae
Pteridium
aquilinium
Hymenophyllaceae
Hymenophyllum
Trichomanes
Marsileaceae
Pilularia
Ophioglossaceae
Botrychium
Ophioglossum
Osmundaceae
Osmunda
Polypodiaceae
Polypodium
Pteridaceae
Pteris
Thelypteridaceae
Oreopteris
Phegopteris
Thelypteris