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Seymour, F. A./ Crittenden, P. D./ Wirtz, N./ Øvstedal, D. O./ Dyer, P. S./ Lumbsch, H. T. 2007: Phylogenetic and morphological analysis of Antarctic lichen-forming Usnea species in the group Neuropogon. - Antarctic Science 19(1): 71-82. [RLL List # 206 / Rec.# 29213]
Keywords: NEUROPOGON/ ANTARCTICA/ USNEA/ BIPOLAR LICHENS/ PARMELIACEAE
Abstract: [Study 400 specimens of 5 taxa using morphological and molecular (ITS and RPB1) characters. "Phylogenetic analyses indicated that species circumscription in the Neuropogon group needs revision, with the principal species being non-monophyletic. None of the morphological characters, or groups of characters, used in this study proved to be completely unambiguous markers for a single species. However, axis thickness was supported as being informative for the identification of monophyletic lineages within the group."

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