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Issue: Vol. 710 No. 3: 17 Jul. 2025
Type: Article
Published: 2025-07-17
DOI: 10.11646/phytotaxa.710.3.1
Page range: 231-248
Abstract views: 359
PDF downloaded: 11

Septocystis (Polyporales, Basidiomycota), a new genus of Polyporaceae from Southern China

Institute of Edible Fungi, College of Agriculture, Guangxi University, Nanning 530004, China
Institute of Edible Fungi, College of Agriculture, Guangxi University, Nanning 530004, China
Polyporales poroid fungi taxonomy new genus phylogenetic Fungi

Abstract

A new genus Septocystis gen. nov. was set up during the macrofungal diversity survey in southern China. Phylogenetic analyses of ITS+nLSU+RPB2 dataset showed that the new genus belongs to the family Polyporaceae. Furthermore, it is sister to Pseudomegasporoporia in the core polyporoid clade of Polyporales with a monophyletic lineage. Distinguishing characters of the new genus are its basidiomata resupinate; hyphal system dimitic; generative hyphae bearing clamp connections, skeletal hyphae frequently branched, usually well differentiated from the main part in trama; dendrohyphidia absent, hyphal pegs present; cystidia fusoid, long clavate to flask shaped, usually with 1–3 septa at tip; cystidioles fusoid, long clavate to flask shape; basidia barrel-shaped to cylindrical; basidiospores cylindrical, IKI−, CB+. A new species Septocystis minor is described. Taxonomic descriptions and illustrations are presented.

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How to Cite

Huang, F.-C. & Lin, J.-T. (2025) Septocystis (Polyporales, Basidiomycota), a new genus of Polyporaceae from Southern China. Phytotaxa 710 (3): 231–248. https://doi.org/10.11646/phytotaxa.710.3.1