A new genus and species of Phialocephala-like fungi with cordiform conidia in Chaetosphaeriaceae
Journal
Mycoscience
Journal Volume
66
Journal Issue
1
Start Page
109
End Page
115
ISSN
1340-3540
1618-2545
Date Issued
2024-11-27
Author(s)
Abstract
A Phialocephala-like hyphomycete was found on a dead petiole of the fern Angiopteris lygodiifolia in Taiwan. It differs from all other known fungi by its pale brown cordiform conidia in brown masses on the top of penicillately branched dematiaceous conidiophores, and is described as new genus and species Phaeophialocephala cardiospora. By its pigmented conidia, this species differs from Phialocephala trigonospora, which is transferred to another new genus, Cardiocephala, Sordariomycetidae, incertae sedis. Phylogenetic analyses of ITS, LSU and TEF sequences indicate particularly close relationship of Phaeophialocephala cardiospora to Caligospora and Caliciastrum in the Chaetosphaeriaceae. An almost identical environmental ITS2 sequence from the USA and a brief morphological characterization from a fungus-distribution database in Denmark indicate that the fungus is probably widespread but rarely encountered.
Subjects
Chaetosphaeriales
dematiaceous anamorphic fungi
environmental sequences
pteridicolous
Publisher
The Mycological Society of Japan
Type
journal article