Li Xin, Zhang Xin, Sun Yi-Fei, Li Zhen-Hao, Zhu An-Hong, Wu Ying-Da
State Key Laboratory of Efficient Production of Forest Resources, School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China Beijing Forestry University Beijing China.
Key Laboratory of Forest and Grassland Fire Risk Prevention, Ministry of Emergency Management, China Fire and Rescue Institute, Beijing 102202, China Ministry of Emergency Management, China Fire and Rescue Institute Beijing China.
MycoKeys. 2025 Apr 9;116:73-89. doi: 10.3897/mycokeys.116.143594. eCollection 2025.
The wood-inhabiting fungi refer to large basidiomycetes that grow on various woody materials and are distributed in various forest ecosystems, some of which have important economic value. In the present study, two new resupinate, adnate, wood-inhabiting fungal taxa, and , are introduced based on morphological and molecular characteristics. A molecular phylogenetic study based on sequence data from the internal transcribed spacers (ITS) and the large subunit (nLSU) regions supported the two new species in the genus . Maximum likelihood (ML), maximum parsimony (MP), and Bayesian inference (BIBI) were employed to perform phylogenetic analyses of these datasets. The new species is characterized by its cream hymenial surface when fresh, olivaceous buff when dry, a monomitic hyphal system with clamp connections, the presence of clavate to tubular cystidia, basidia with six sterigmata, and broadly oval basidiospores measuring 7.9-10.2 × 3.2-4.3 μm. sp. nov. is characterized by its white to buff-yellow hymenial surface when fresh, cream when dry, a monomitic hyphal system with clamp connections, lacking cystidia, basidia with six sterigmata, and broadly navicular basidiospores measuring 7.9-9.2 × 2.6-3.4 μm. The phylogenetic result inferred from ITS + nLSU sequence data revealed that is closely related to , , , and , while is closely related to , , , and .
木生真菌是指生长在各种木质材料上的大型担子菌，分布于各种森林生态系统中，其中一些具有重要的经济价值。在本研究中，基于形态学和分子特征，引入了两个新的平伏、贴生的木生真菌类群， 和 。基于内部转录间隔区（ITS）和大亚基（nLSU）区域的序列数据进行的分子系统发育研究支持了该属中的两个新物种。采用最大似然法（ML）、最大简约法（MP）和贝叶斯推断（BIBI）对这些数据集进行系统发育分析。新物种 的特征在于新鲜时其菌褶表面呈奶油色，干燥时呈橄榄色浅黄色，具有具锁状联合 的单系菌丝系统，存在棒状至管状的囊状体，具六个小梗的担子，以及宽椭圆形的担孢子，大小为7.9 - 10.2 × 3.2 - 4.3μm。新物种 sp. nov. 的特征在于新鲜时其菌褶表面呈白色至浅黄色，干燥时呈奶油色，具有具锁状联合的单系菌丝系统，没有囊状体，具六个小梗的担子，以及宽舟形的担孢子，大小为7.9 - 9.2 × 2.6 - 3.4μm。从ITS + nLSU序列数据推断的系统发育结果表明， 与 、 、 和 密切相关，而 与 、 、 和 密切相关。
