The fern genusAdenoderris(family incertae sedis) is artificial

For over a century the relationships of the rare fern genusAdenoderrisJ. Sm. have been confused. Here, we (1) present a molecular analysis of the genus based on multiple chloroplast markers with the goal of placing its species phylogenetically, (2) provide insights into its morphology and complex ta...

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Bibliographic Details
Published in:	Taxon Vol. 62; no. 6; pp. 1153 - 1160
Main Authors:	McHenry, Monique A., Sundue, Michael A., Barrington, David S.
Format:	Journal Article
Language:	English
Published:	International Association for Plant Taxonomy (IAPT) 01-12-2013
Subjects:	Biological taxonomies Ferns Genera Parsimony Petioles Phylogenetics Phylogeny Plastids Spores SYSTEMATICS AND PHYLOGENY Taxa
Online Access:	Get full text
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Summary:	For over a century the relationships of the rare fern genusAdenoderrisJ. Sm. have been confused. Here, we (1) present a molecular analysis of the genus based on multiple chloroplast markers with the goal of placing its species phylogenetically, (2) provide insights into its morphology and complex taxonomy, and (3) make relevant nomenclatural changes. In seeking a resolution of the problems withAdenoderris, we investigated the morphological, historical, ecological, and biogeographical factors that have madeAdenoderrisso difficult to place with certainty. The key findings are that (1)Adenoderriscomprises two species that were included in the genus on the basis of convergent and symplesiomorphic morphological features, and (2) though the two species both lie in the Dryopteridaceae, they belong to different genera. The correct names for these two species arePolystichum glandulosumC. Presl andDryopteris sororia(Maxon) M. McHenry, Sundue & Barrington, comb. nov.
ISSN:	0040-0262 1996-8175