A new species of the genus Aleurodiscus sensu lato (Russulales, Basidiomycota) from Hachijo Island, Japan

Nitaro Maekawa; Ryo Sugawara; Ryo Nakano; Ryotaro Shino; Kozue Sotome; Akira Nakagiri; Yuichi Oba

doi:10.47371/mycosci.2023.06.001

Short communication

A new species of the genus Aleurodiscus sensu lato (Russulales, Basidiomycota) from Hachijo Island, Japan

Nitaro Maekawa , Ryo Sugawara, Ryo Nakano, Ryotaro Shino, Kozue Sotome, Akira Nakagiri, Yuichi Oba

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Keywords: corticioid fungi, Livistona chinensis, molecular phylogeny, Stereaceae

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Supplementary material

2023 Volume 64 Issue 4 Pages 109-115

DOI https://doi.org/10.47371/mycosci.2023.06.001

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Abstract

Aleurodiscus sagittisporus sp. nov. is described and illustrated. This species is characterized by producing basidiomata with a monomitic hyphal system, clampless-septate hyphae, arrowhead-shaped, amyloid, finely verrucose basidiospores, gloeocystidia, dendrohyphidium-like branched paraphysoid hyphae, and variously shaped swelling cells in the hymenium. Phylogenetic analyses based on nuclear rDNA LSU and ITS sequences revealed that the species is distinct from the lineage of Aleurodiscus s. str. and related genera in the Aleurodiscus s. lat. clade. Basidiomata of A. sagittisporus have been collected only from dead petioles attached to living trees of Livistona chinensis var. subglobosa on Hachijo Island, Japan.

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