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Issue: Vol. 183 No. 3: 22 October 2014
Type: Article
Published: 2014-10-22
DOI: 10.11646/phytotaxa.183.3.5
Page range: 183–192
Abstract views: 16
PDF downloaded: 1

Helicascus gallicus sp. nov., a new freshwater pleosporalean ascomycete from France

Institute of Microbiology, P.O. Box 61, Beijing Forestry University, Beijing 100083, PR China
Institute of Microbiology, P.O. Box 61, Beijing Forestry University, Beijing 100083, PR China
Plant Protection Unit, Juancheng County, Heze, Shandong, PR China, 274600
Institute of Microbiology, P.O. Box 61, Beijing Forestry University, Beijing 100083, PR China
Institute of Microbiology, P.O. Box 61, Beijing Forestry University, Beijing 100083, PR China
Las Muros, Rimont, Ariège F 09420, France
aquatic fungi monophylogeny Morosphaeriaceae taxonomy

Abstract

x A new species of Helicascus (H. gallicus) is described and illustrated from submerged wood collected from aquatic habitats in western and southern France. It is morphologically characterized by multilocular ascomata covered by a thick clypeus and sharing a common ostiole, clavate asci with endoascus coiling in the pedicel, cellular pseudoparaphyses, and brown 2-celled ascospores with a marked submedian septum. Its relationships with other species of Helicascus are discussed based on morphology and 28S and ITS nrDNA sequence comparisons.