Athyrium filix-femina var. angustum
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Read MorePosted by Michael Sundue | Jun 21, 2015 | Ferns, Observations
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Read MoreA Small Number of Gametophytes with Gametangia and Stunted Sporophytes of Antrophyum obovatum Baker (Pteridaceae): The Suppression of Functional Sporophyte Production by Prezygotic and Postzygotic Sterility. http://dlvr.it/Rr9wwH
Based on an estimate of 51 families worldwide. Total number of families on this website = 50.
Based on an estimate of 337 genera worldwide. Total number of genera on this website = 280.
Based on an estimate of 11,916 species worldwide. Total number of species on this website = 1271.