Morphological characteristics and phylogenetic analysis reveal Helvellosebacina filicata sp. nov. and Sebacina aciculicola sp. nov. in Sebacinales from southwest China

By

Dong, Jia-Hui
Zhang, Xin
Guan, Qian-xin
Wu, Fang

Type

Article

Date of Publication

2025-6-3

Original Publication

MycoKeys

Volume

118

Pages

105--118

Subjects

Basidiomycota , Fungal diversity , new taxa , Sebacinaceae , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers 2011-

Identifiers

DOI: https://doi.org/10.3897/mycokeys.118.152160

 

Abstract

Morphological characteristics and phylogenetic analyses based on ITS and nLSU sequences reveal two new species of Sebacinaceae from southwest China, viz. Helvellosebacina filicatasp. nov. and Sebacina aciculicolasp. nov. The two species have similar micromorphology characterized by clampless hyphae, hyphidia with simple septa, longitudinally septate, 4-celled, ovoid to subglobose basidia, and broadly ellipsoid to ovoid basidiospores. However, H. filicata is characterized by cartilaginous to gelatinous, white to cream, sometimes semi-transparent basidiomata; basidiospores measuring 8.6–9.9 × 5.8–7.6 μm; and growth on dead ferns. S. aciculicola is characterized by coriaceous, white-to-cream basidiomata; basidiospores measuring 10.2–12.9 × 6.3–8.7 μm; and growth on needles and bark of Pinus. The two new species are described and illustrated in this study.