菌物学报2026，Vol.45Issue(5)：23-34,12.DOI:10.13346/j.mycosystema.250371
中国南方水生环境中的螺壳菌属Neohelicascus两个新种
Two novel Neohelicascus species from freshwater habitats in southern China
摘要
Abstract
Freshwater fungi play a crucial role in aquatic ecosystems as key decomposers of submerged woody debris,facilitating nutrient cycling and maintaining ecological balance.Southern China has emerged as a global hotspot for freshwater fungal diversity,with numerous novel species being discovered in recent years.In this study,three fresh collections were collected from Guangxi Zhuang Autonomous Region and Guizhou Province.Based on comprehensive morphological comparisons and multi-locus(LSU,ITS,SSU,tef1-α)phylogenetic analyses,two novel species Neohelicascus multiseptatus and N.nanpanjiangensis were identified and described.Detailed morphological descriptions and illustrations are given.In addition,a key to known species of Neohelicascus is also provided.关键词
新种/淡水真菌/形态学/系统发育学/分类学Key words
new species/freshwater fungi/morphology/phylogeny/taxonomy引用本文复制引用
田兴国,保旦凤,韩佳俊,马鹏,汪向菲,卢永仲..中国南方水生环境中的螺壳菌属Neohelicascus两个新种[J].菌物学报,2026,45(5):23-34,12.基金项目
This work was supported by the National Natural Science Foundation of China(32360011),the Science and Technology Foundation of Guizhou Province(QianKeHe Pingtai ZSYS[2025]029),the Science and Technology Program of Guizhou Province(QianKeHe Jichu QN[2025]215),the Postdoctoral Fellowship Program of CPSF(GZC20240346),and the Guizhou Provincial Basic Research Program(Natural Science)(QianKeHe Basic-MS[2025]general program 666). （32360011）
