Zhao Gui-Ping, Hu Jia-Jun, Tuo Yong-Lan, Li Yu, Zhang Bo
Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun, Jilin 130118, China Jilin Agricultural University Changchun China.
MycoKeys. 2022 Jul 19;91:97-111. doi: 10.3897/mycokeys.91.84730. eCollection 2022.
In this contribution to the genus in northern China, two new species are introduced: and . These species and , initially described in south-western China, are highly similar and closely related. The species delimitation is molecularly supported by multigene phylogenetic analysis of the nr LSU and -1α region. is characterised by its medium-sized basidiomata, greyish-brown and smooth pileus with an off-white margin, the hymenophore with a strongly anastomosing vein, turning khaki upon drying, connate stipe, broad ellipsoid to ellipsoid basidiospores (6.1-7.8 × 4.8-5.9 μm), slender basidia with (2)4-6 sterigmata and the absence of clamp connection. is characterised by its small-sized basidiomata, fibrillose, greyish-brown to yellowish-brown, fully perforated pileus with a brown fringe, the hymenophore with a forking vein, the stipe inflated at the base, broad ellipsoid to ellipsoid basidiospores (6.8-8.0 × 5.1-6.0 μm), 2-6 spored basidia, encrusted hyphae and the absence of clamp connection. Detailed macroscopic and microscopic descriptions, accompanied by illustrations and a taxonomic discussion, are presented. A key to the Chinese species is also provided.
在对中国北方该属的研究中,引入了两个新物种: 和 。这些物种与最初在中国西南部描述的 和 高度相似且关系密切。通过对nr LSU和 -1α区域的多基因系统发育分析,从分子层面支持了物种界定。 的特征为中型担子果,菌盖灰褐色且光滑,边缘灰白色,子实层体具强烈吻合的脉,干燥后变为卡其色,菌柄合生,担孢子宽椭圆形至椭圆形(6.1 - 7.8 × 4.8 - 5.9μm),具(2)4 - 6个小梗的细长担子,且无锁状联合。 的特征为小型担子果,具纤维状,灰褐色至黄褐色,菌盖完全穿孔且具棕色边缘,子实层体具叉状脉,菌柄基部膨大,担孢子宽椭圆形至椭圆形(6.8 - 8.0 × 5.1 - 6.0μm),具2 - 6个孢子的担子,菌丝具结壳,且无锁状联合。文中给出了详细的宏观和微观描述,并配有插图及分类学讨论。还提供了中国 属物种的检索表。