How many species of seed plants are there?
Authors: Scotland, Robert W.; Wortley, Alexandra H.
Source: Taxon, Volume 52, Number 1, 1 February 2003 , pp. 101-104(4)
Publisher: International Association for Plant Taxonomy
Abstract:Recent estimates of the number of described species of seed plant have varied by as much as 62%. The underlying methodology of these estimates is characterised and discussed. We present a revised figure for the number of seed plants based on estimating rates of synonymy in a sample of recently monographed taxa. We conclude that some recent figures overestimate the number of described seed plant species by more than 200,000. This discrepancy is explained by an over-reliance on checklists and floristic studies that underestimate synonymy rates.
Document Type: Research Article
Affiliations: Department of Plant Sciences, University of Oxford, South Parks Rd., Oxford, OX1 3RB, U.K.
Publication date: 2003-02-01
Impact Factor (2012): 2.78
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