Zhou Lin-Jiang, Li Xue-Long, Yuan Hai-Sheng
CAS Key Laboratory of Forest Ecology and Silviculture, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China Institute of Applied Ecology, Chinese Academy of Sciences Shenyang China.
University of the Chinese Academy of Sciences, Beijing 100049, China University of the Chinese Academy of Sciences Beijing China.
MycoKeys. 2024 Oct 22;109:337-354. doi: 10.3897/mycokeys.109.133325. eCollection 2024.
The basidiomycete genus is a resupinate saprotrophic with a global distribution range from coniferous to broad-leaved forest ecosystems. Though numerous species have been reported from Eurasia and North America, few have been described from China. In the current work, phylogenetic analyses of in China were conducted based on the dataset of the internal transcribed spacer (ITS) regions and the large subunit (LSU) of nuclear ribosomal RNA gene. Maximum likelihood and Bayesian analyses were used to reconstruct the phylogenetic tree, and three new species, namely , and , were described from subtropical forests of Yunnan Province, Southwestern China. is characterized by having yellowish white to dark yellow basidiome, clavate to tubular cystidia, and subglobose to globose basidiospores with obtuse spines. is characterized by having fluffy to arachnoid, greyish white to ivory basidiome, generative hyphae with clamped, tubular cystidia, and subnavicular to navicular basidiospores. While, is characterized by having yellowish to ivory basidiome, subovoid basidia, navicular to suburniform basidiospores, and thick-walled chlamydospores. These three new species are described and illustrated, and the discriminating characters between the new species and their closely related species are discussed. A key to known species of in China is provided.
担子菌属是一种平伏的腐生菌，全球分布范围涵盖从针叶林到阔叶林的生态系统。尽管在欧亚大陆和北美已报道了许多物种，但在中国被描述的却很少。在当前这项工作中，基于核糖体RNA基因的内转录间隔区（ITS）和大亚基（LSU）数据集，对中国的[该担子菌属]进行了系统发育分析。使用最大似然法和贝叶斯分析法重建系统发育树，并从中国西南部云南省的亚热带森林中描述了三个新物种，即[物种名称1]、[物种名称2]和[物种名称3]。[物种名称1]的特征是具有黄白色至深黄色的担子果、棒状至管状的囊状体以及具钝刺的近球形至球形担孢子。[物种名称2]的特征是具有绒毛状至蛛网状、灰白色至象牙色的担子果、具锁状联合的生殖菌丝、管状囊状体以及近舟形至舟形的担孢子。而[物种名称3]的特征是具有淡黄色至象牙色的担子果、近卵形的担子、舟形至近瓶形的担孢子以及厚壁的厚垣孢子。对这三个新物种进行了描述和图示，并讨论了新物种与其近缘物种之间的鉴别特征。提供了中国已知[该担子菌属]物种的检索表。
