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Mynssen, Claudine M.; Vasco, Alejandra; Moran, Robbin C.; Sylvestre, Lana S.; Rouhan, Germinal

Desmophlebiaceae and Desmophlebium: A new family and genus of Eupolypod II ferns

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  • Media type: E-Article
  • Title: Desmophlebiaceae and Desmophlebium: A new family and genus of Eupolypod II ferns
  • Contributor: Mynssen, Claudine M.; Vasco, Alejandra; Moran, Robbin C.; Sylvestre, Lana S.; Rouhan, Germinal
  • imprint: Wiley, 2016
  • Published in: TAXON
  • Language: English
  • DOI: 10.12705/651.2
  • ISSN: 0040-0262; 1996-8175
  • Origination:
  • Footnote:
  • Description: <jats:title>Abstract</jats:title><jats:p>Based on an analysis of five plastid markers (<jats:italic>atpA</jats:italic>, <jats:italic>atpB</jats:italic>, <jats:italic>rbcL</jats:italic>, <jats:italic>rps4‐trnS</jats:italic>, <jats:italic>trnL/trnL‐trnF</jats:italic>), we show that <jats:italic>Diplazium lechleri</jats:italic> is sister to a clade formed by the Hemidictyaceae and Aspleniaceae. Thus, it does not belong to the Athyriaceae where previously classified. A new family, Desmophlebiaceae, and a new genus, <jats:italic>Desmophlebium</jats:italic>, are described to accommodate this relationship. Morphologically, <jats:italic>Desmophlebium</jats:italic> is distinguished from <jats:italic>Diplazium</jats:italic> by the combination of thick 1‐pinnate laminae, entire pinnae, decurrent distal pinnae, conform lamina apices (i.e., the terminal segment is similar to the lateral pinnae), and the presence of a submarginal connecting vein. On the basis of morphology, we also assign <jats:italic>Diplazium longisorum</jats:italic> to the new family and genus. Accordingly, the new combinations <jats:italic>Desmophlebium lechleri</jats:italic> and <jats:italic>D. longisorum</jats:italic> are provided. A lectotype is designated for <jats:italic>Diplazium parallelogrammum</jats:italic>, a synonym of <jats:italic>Desmophlebium lechleri. Desmophlebium</jats:italic> grows in humid forests from 125 to 1900 m. <jats:italic>Desmophlebium lechleri</jats:italic> occurs from Panama to north‐central and northeastern Brazil, and <jats:italic>D. longisorum</jats:italic> occurs in Colombia, Ecuador, and Peru.</jats:p>