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Issue: Vol. 305 No. 3: 28 April 2017
Type: Article
Published: 2017-04-28
DOI: 10.11646/phytotaxa.305.3.6
Page range: 191–200
Abstract views: 31
PDF downloaded: 51

Melansporellaceae: a novel family of Diaporthales (Ascomycota)

The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, PR China
International Fungal Research & Development Centre, The Research Institute of Resource Insects, Chinese Academy of Forestry, Bailongsi, Kunming 650224, PR China
The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, PR China
Museum of Beijing Forestry University, Beijing 100083, PR China
The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, PR China
diaporthalean fungi fungal diversity new taxon Sordariomycetes systematics taxonomy Fungi

Abstract

Melansporellaceae fam. nov. is introduced to accommodate a genus of diaporthalean fungi that is a phytopathogen causing walnut canker disease in China. The family is typified by Melansporella gen. nov. It can be distinguished from other diaporthalean families based on its irregularly uniseriate ascospores, and ovoid, brown conidia with a hyaline sheath and surface structures. Phylogenetic analysis shows that Melansporella juglandium sp. nov. forms a monophyletic group within Diaporthales (MP/ML/BI=100/96/1) and is a new diaporthalean clade, based on molecular data of ITS and LSU gene regions. Thus, a new family is proposed to accommodate this taxon.