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Issue: Vol. 770 No. 2: 19 Aug. 2026
Type: Article
Published: 2026-08-19
DOI: 10.11646/phytotaxa.770.2.3
Page range: 97-111
Abstract views: 39
PDF downloaded: 1

Helvellosebacina sclerotica (Sebacinaceae, Sebacinales), a new species from China, based on morphology and phylogeny

Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province; Southwest Forestry University; Kunming 650224; P.R. China; College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China
Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province; Southwest Forestry University; Kunming 650224; P.R. China; College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China
Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province; Southwest Forestry University; Kunming 650224; P.R. China; College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China
Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province; Southwest Forestry University; Kunming 650224; P.R. China; College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China
School of Ecology and Nature Conservation; Beijing Forestry University; Beijing 100083; P.R. China
State Key Laboratory of Agricultural and Forestry Biosecurity; College of Life Sciences; Fujian Agriculture and Forestry University; Fuzhou 350002; P.R. China
Key Laboratory of Forest Disaster Warning and Control in Universities of Yunnan Province; Southwest Forestry University; Kunming 650224; P.R. China; College of Forestry; Southwest Forestry University; Kunming 650224; P.R. China; Department of Microbial Drugs; Helmholtz Centre for Infection Research (HZI); Inhoffenstrasse 7; 38124; Braunschweig; Germany
Fungi Molecular phylogeny New taxon Taxonomy Wood-inhabiting fungi Yunnan Province

Abstract

Helvellosebacina sclerotica sp. nov. was found in Yunnan Province, China, which is described here as a new species based on the morphological characteristics and molecular evidence. It is characterized by the resupinate basidiomata, smooth hymenial surface, a monomitic hyphal system with septate generative hyphae, and broadly ellipsoid to ellipsoid, smooth basidiospores (11–15 × 5.5–8.0 µm). Phylogenetic analyses of the combined internal transcribed spacer (ITS) and large subunit ribosomal RNA (nrLSU) sequence dataset confirmed that the new species belongs to Helvellosebacina. The phylogenetic tree inferred from ITS sequences showed that Helvellosebacina sclerotica was recovered as a sister group to H. granulate. Detailed descriptions, illustrations, and phylogenetic analyses of one new species are provided.

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How to Cite

Zhu, Y., Ye, S., Feng, J., Luo, H., Dong, J., Qiu, J. & Zhao, C. (2026) Helvellosebacina sclerotica (Sebacinaceae, Sebacinales), a new species from China, based on morphology and phylogeny. Phytotaxa 770 (2): 97–111. https://doi.org/10.11646/phytotaxa.770.2.3