The Catalogue of Life, 20th January 2014 is now
available online at www.catalogueoflife.org/col.
The new edition includes updates of the World Ferns checklist that was
incorporated into CoL last year as part of the i4Life project. Ferns are
a very widespread linaege of plants often now considered to include the
Horsetails (Equisetum) and the Whisk Fern (Psilotum). One of the largest fern genera is Asplenium which has >800 species listed in Catalogue of Life. Illustrated here is Asplenium ceterach which has distinctive rust-brown scales on the underside of its fronds. This has lead to the common name 'Rustyback fern'.
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