New species and new records of Laccaria (Agaricales, Basidiomycota) from Northern Thailand

文献类型： 外文期刊

第一作者： Tang, Song-Ming

作者： Tang, Song-Ming;Luo, Zong-Long;Tang, Song-Ming;Li, Shu-Hong;Vadthanarat, Santhiti;Raghoonundon, Bhavesh;Zhu, Xin-Yu;Zhu, Xin-Yu;Yu, Feng-Ming;He, Jun

作者机构：

关键词： 2 new taxa; Hydnangiaceae; phylogeny; taxonomy

期刊名称：MYCOKEYS （ 影响因子：3.6； 五年影响因子：3.3 ）

ISSN： 1314-4057

年卷期： 2024 年 107 期

页码：

收录情况： SCI

摘要： Two new species Laccaria pseudoalba and L. subroseoalbescens are described and illustrated, based on morphological characteristics and molecular phylogenetic analysis. Two new records, Laccaria umbilicata and L. yunnanensis from Thailand, are also reported. Laccaria subroseoalbescens is characterized by small basidiomata, stipe equal with an enlarged base, and nearly subclavate, pale pink to light orange. Laccaria pseudoalba is characterized by pale orange to orange white pileus, has umbo when young on the pileus, and fistulose stipe of the pale to pastel red color. Phylogenetic analysis based on sequence data from rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS), nuc 28S rDNA (28S), RNA polymerase II subunit 2 (rpb2), and translation elongation factor 1-alpha (tef1-alpha) are provided as further evidence. Molecular analysis confirms the phylogenetic positions of the two new species and two new records. The differences in characteristics of these two new species and closely related species are discussed herein.

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