Posted by Susan Fawcett | Ferns, Object, Observations, What is this? | 0
July 11, 2016
October 29, 2011
December 18, 2014
November 2, 2011
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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 = 287.
Based on an estimate of 11,916 species worldwide. Total number of species on this website = 1551.