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Type: Article
Published: 2019-07-17
Page range: 73–83
Abstract views: 28
PDF downloaded: 1

Wicklowia submersa sp. nov. (Wicklowiaceae, Pleosporales), a second species in a monotypic family

Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand
Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, People’s Republic of China
1 new species bitunicate monotypic family phylogeny submerged wood Fungi

Abstract

A new freshwater ascomycetous species, Wicklowia submersa was found on submerged wood in a freshwater stream in Krabi Province in southern Thailand. This is a second species in a monotypic family. Morphological examination and phylogenetic analysis of LSU and SSU sequence data support this new species as belonging to Wicklowia in the family Wicklowiaceae (Pleosporales). Wicklowia submersa possesses ascomata that are immersed, erumpent when mature, raised and visible as dark oval or slit-like structures on host surface. The bitunicate asci have well-developed ocular chambers when immature with a short pedicel. Ascospores are ellipsoidal-oblong, asymmetrical, 1-septate, guttulate when immature, hyaline, with a distinctly mucilaginous sheath. The characteristics of the asci, and ascospores which lack both apical and basal appendages distinguish it from the type species W. aquatic. A description, illustration and comparison of the new species is provided. The risk of introducing monotypic families is discussed.