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Issue: Vol. 754 No. 1: 1 May 2026
Type: Article
Published: 2026-05-01
DOI: 10.11646/phytotaxa.754.1.5
Page range: 95-104
Abstract views: 0
PDF downloaded: 0

Two new species of Castanediella revealed by phylogenetic and morphology analyses from Guizhou, China

School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
School of Life Sciences, Guizhou Normal University, Guiyang 550025, China; School of Biological Science and Agriculture, Qiannan Normal University for Nationalities, Duyun 558000, China
Castanediellaceae hyphomycetes saprophytic fungi taxonomy Xylariales Fungi

Abstract

During a survey of hyphomycetes associated with garden plants in Guizhou Province, China, several fungal taxa belonging to the genus Castanediella were collected. In this study, two new species were identified: Castanediella castaneae is characterized by short, hyaline conidiophores and 0–1-septate, hyaline conidia, while C. aseptata is distinguished by pale brown conidiophores and aseptate, hyaline conidia. Phylogenetic analyses were performed based on a combined dataset of the internal transcribed spacer region of ribosomal DNA (ITS) and large subunit nuclear ribosomal DNA (LSU) sequences to determine the phylogenetic position of these species. The resulting tree showed that C. aseptata formed an independent clade, whereas C. castaneae clustered with C. malaysiana as a sister clade.

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How to Cite

Zhao, Y.-F., Yang, J.-Z., Xiang, Y.-L., Wu, G.-Y., Lin, C.-G. & Weng, Q.-B. (2026) Two new species of Castanediella revealed by phylogenetic and morphology analyses from Guizhou, China. Phytotaxa 754 (1): 95–104. https://doi.org/10.11646/phytotaxa.754.1.5