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来自中国东北的两种具脉状子实层体的新种(鸡油菌目,齿菌科)

Two new species of (Cantharellales, Hydnaceae) with veined hymenophore from north-eastern China.

作者信息

Zhao Gui-Ping, Hu Jia-Jun, Tuo Yong-Lan, Li Yu, Zhang Bo

机构信息

Engineering Research Center of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University, Changchun, Jilin 130118, China Jilin Agricultural University Changchun China.

出版信息

MycoKeys. 2022 Jul 19;91:97-111. doi: 10.3897/mycokeys.91.84730. eCollection 2022.

Abstract

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.

摘要

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。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed96/9849064/2a27b2fb17f0/mycokeys-91-097-g001.jpg

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