A new section and species of Agaricus subgenus Pseudochitonia from Thailand

被引：30

作者：

He, Mao-Qiang ^{[1
,2
,3
]}

Chuankid, Boontiya ^{[3
]}

Hyde, Kevin D. ^{[3
]}

Cheewangkoon, Ratchadawan ^{[1
]}

Zhao, Rui-Lin ^{[2
,4
]}

机构：

[1] Chiang Mai Univ, Fac Agr, Dept Entomol & Plant Pathol, Chiang Mai 50200, Thailand

[2] Chinese Acad Sci, Inst Microbiol, State Key Lab Mycol, Beijing 100101, Peoples R China

[3] Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand

[4] Univ Chinese Acad Sci, Coll Life Sci, Beijing 100408, Peoples R China

来源：

MYCOKEYS | 2018年 / 40期

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

New taxa; Agaricaceae; Phylogeny; Taxonomy; MODELS; CLADES; TAXA;

D O I：

10.3897/mycokeys.40.26918

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

A large species diversity has recently been discovered in the genus Agaricus. Six subgenera and 23 sections are now recognised. In this study, three specimens collected from Thailand, formed a monophyletic clade in subgenus Pseudochitonia, based on analyses of ITS sequence data. Further analyses, based on multi-gene sequence data (ITS, LSU, tef1-alpha), using BEAST, revealed that this clade originated 26.7 Ma. According to their distinct morphological characteristics, phylogenetic position and relatively old divergence time, a new section Cymbiformes is proposed and this section is represented by a new species A. angusticystidiatus. This new section is characterised by the strong iodoform odour of basidiomes and cymbiform basidiospores. Descriptions, colour photographs and illustrations are presented.

引用

页码：53 / 67

页数：15

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