Fern List
by Leaf Divisions (Cuts)
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| One very common way to group
ferns for identification purposes is by the number of times each frond
is divided, or "cut". For more information about this,
please see the Fern Glossary page. |
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Undivided These
are ferns having fronds that are not divided into leaflets. Each frond
is a single "leaf" which is not split or "cut" into leaflets.
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NO CUTS |
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Once Divided Each frond is divided
into leaflets only once; ie, it is "cut" in only one direction.
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ONE CUT |
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Twice Divided
Each leaflet is further divided into subleaflets;
ie, it is cut in two directions.
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TWO CUTS |
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Thrice Divided
Each leaflet is divided into subleaflets,
and each subleaflet is further divided or cut into "sub-subleaflets".
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THREE CUTS |
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Here's another
sequence of photos to illustrate a thrice divided or thrice cut frond.
This is the first division or cut, which divides the
frond into leaflets or pinnae. |
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The second division or
cut, which divides each leaflet into subleaflets or
pinnules. |
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And the third division or
cut, which divides each subleaflet into sub-subleaflets
or lobes. For more information about this, please see
the Fern Glossary page. |
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And all three divisions or
cuts shown together. For more information about this,
please see the Fern
Glossary page. |
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