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The systematics of the Polypodiaceae
1990Concepts and methods of monographic systematic research on ferns have changed considerably during the last decades. Recently Haufler and collaborators studying Polypodium vulgare sensu lato have suggested that apart from divergent speciation in sexual diploids and hybrid speciation (e.g.
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Polypodiaceae, Dryopteridoideae, Physematieae
American Fern Journal, 1994David B. Lellinger +5 more
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The microsoroid ferns (Polypodiaceae)
1997Three genera are recognised, Leptochilus, Microsorum, and Podosorus. Lepisorus probably also belongs here, but is left out because this work started as a precursor for Flora Malesiana, and most Lepisorus species occur outside the Malesian area. The following genera, recognised by Bosman (1991), are reduced: Colysis (to Leptochilus), Neocheiropteris and
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