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Pawłowska J, Istel Ł, Gorczak M, Galera H, Wrzosek M, Hawksworth DL. Psychronectria hyperantarctica, gen. nov., comb. nov., epitypification and phylogenetic position of an Antarctic bryophilous ascomycete. Mycologia 2017; 109:601-607. [PMID: 29200362 DOI: 10.1080/00275514.2017.1398575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The holotype of Thyronectria hyperantarctica was re-examined, redescribed, and compared with new collections of an Antarctic bryophilous ascomycete from a similar area. Because the condition of type material was insufficient for molecular studies, the authors designated an epitype from newly collected material with a high degree of morphological similarity to the holotype and paratype material. Phylogenetic analysis of the epitype revealed that its closest phylogenetic affinity was with the family Tilachlidiaceae and it formed a monophyletic group in this lineage within other collections of the species. Therefore, the new monotypic genus Psychronectria is described to accommodate Thyronectria hyperantarctica. The fungus is superficially similar to Thyronectria species in Nectriaceae, but the ascospores differ in color, size, and type of septation.
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Affiliation(s)
- Julia Pawłowska
- a Department of Molecular Phylogenetics and Evolution, Faculty of Biology, Biological and Chemical Research Centre , University of Warsaw, Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Łukasz Istel
- a Department of Molecular Phylogenetics and Evolution, Faculty of Biology, Biological and Chemical Research Centre , University of Warsaw, Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Michał Gorczak
- a Department of Molecular Phylogenetics and Evolution, Faculty of Biology, Biological and Chemical Research Centre , University of Warsaw, Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Halina Galera
- b Department of Plant Ecology and Environmental Conservation, Faculty of Biology , Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - Marta Wrzosek
- a Department of Molecular Phylogenetics and Evolution, Faculty of Biology, Biological and Chemical Research Centre , University of Warsaw, Żwirki i Wigury 101 , 02-089 Warsaw , Poland
| | - David L Hawksworth
- c Department of Life Sciences , The Natural History Museum, Cromwell Road , London SW7 5BD , UK.,d Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew , Richmond , Surrey TW9 3DS , UK
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