Australasia; foliicolous; goniocystangia; lichen; New Caledonia; peltidiangia; phylogeny; Ecology, Evolution, Behavior and Systematics
Abstract :
[en] The foliicolous lichen Gallaicolichen pacificus exhibits unique goniocystangia-like structures named peltidiangia and peltidia. Its taxonomic classification within the Ascomycota has been unclear due to the absence of ascomata and lack of molecular data. Here we clarify the phylogenetic affinities of Gallaicolichen pacificus by analyzing mitochondrial small subunit ribosomal RNA (mtSSU) sequences obtained from specimens collected in New Caledonia. Ascomata and ascospores of G. pacificus, previously unknown, are described and illustrated for the first time. The results from the molecular and morphological analyses clearly indicate that Gallaicolichen pacificus belongs to the Porinaceae and is closely related to Porina guianensis. This is a remarkable extension of the already known, wide morphological diversity of thalli and diaspores produced within this family.
Ertz, Damien ; Université de Liège - ULiège > Département des sciences de la vie ; Department of Research, Meise Botanic Garden, Meise, Belgium ; Service Général de l'Enseignement Supérieur et de la Recherche Scientifique, Fédération Wallonie-Bruxelles, Bruxelles, Belgium
Lücking, Robert ; Botanischer Garten und Botanisches Museum, Freie Universität Berlin, Berlin, Germany
Simon, Antoine ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie de l'évolution et gestion de la biodiversité ; Natural History Museum, University of Oslo, Oslo, Norway ; Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
Smith, Clifford; Department of Botany, University of Hawaii at Manoa, Honolulu, United States
Sérusiaux, Emmanuël ; Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution
Language :
English
Title :
Further expansion of morphological variability in the Porinaceae (Ascomycota, Ostropales) with the placement of the enigmatic genus Gallaicolichen
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