Phylogenetic Analyses of Some Melanoleuca Species (Agaricales, Tricholomataceae) in Northern China, With Descriptions of Two New Species and the Identification of Seven Species as a First Record

Abstract

Two new species (Melanoleuca galerina and M. subgrammopodia) and seven new recorded species from northern China are described here using morphological and molecular methods. Melanoleuca galerina is mainly characterized by its hygrophanous pileus, decurrent lamellae, fibrous stipe and spores with round warts. Key characteristics of M. subgrammopodia include its discolored pileus, fibrous stipe and urticiform cystidia. The divergence time of Melanoleuca fungi as well as the phylogenetic relationships within this genus were analyzed using DNA sequences of the internal transcribed spacer (ITS) and the nuclear large subunit rDNA (nrLSU) gene fragments. Analyses revealed that morphological identifications and phylogenetic relationships were consistent with the results of divergence time, thereby confirming that M. galerina and M. subgrammopodia are new species.

Melanoleuca subgriseoflava and M. substridula—two new Melanoleuca species (Agaricales, Basidiomycota) described from China

“…Melanoleuca Vizzini. Then, follow-up studies on species of Melanoleuca support the classification opinion proposed by Vizzini et al (2011) ( Yu et al, 2014 ; Kalmer, Acar & Dizkirici, 2018 ; Xu et al, 2019 ).…”

“…Konrad & Maubl etc. Recently, many new species of Melanoleuca have been reported throughout the world ( Vizzini et al, 2010 ; Vizzini et al, 2011 ; Sánchez-García, Cifuentes-Blanco & Matheny, 2013 ; Antonín et al, 2014 ; Antonín et al, 2017 ; Antonín et al, 2021 ; Yu et al, 2014 ; Nawaz, Jabeen & Khalid, 2017 ; Xu et al, 2019 ; Pei et al, 2021 ). Melanoleuca is a taxonomically complicated genus because many species in the genus are very similar in macroscopical characteristics and only present subtle differences ( Bon, 1991 ; Boekhout, 1999 ; Vizzini et al, 2011 ).…”

“…Only 31 species of Melanoleuca have been reported in China ( Bau & Li, 1999 ; Zhang, Li & Song, 2001 ; Chen, 2007 ; Mao, 2009 ; Sun et al, 2012 ; Wang, 2013 ; He et al, 2014 ; Yu et al, 2014 ; Zhao et al, 2014 ; Wei, Fan & Yan, 2015 ; Du et al, 2016 ; Tian et al, 2018 ; Xu et al, 2019 ; Pei et al, 2021 ). Although China has a complex climate and geographical conditions, species resources of Melanoleuca remain scarce.…”

Additions to Lyophyllaceae s.l. from China

“…Factor Q is the value of its length divided by width and Qm is the mean of the Q values. The procedure for scanning electron microscopy (SEM) followed that of Xu et al [29], and an FEI Quanta 200FE-SEM (JEOL Ltd., Akishima, Japan) was used at an accelerating voltage of 5-10 kV.…”

Türkiye’nin Batı Akdeniz bölgesinden yeni bir kayıt, Melanoleuca tristis (Bazidiyomikota, Agaricales)

“…& Pouzar and Amanitaceae E.-J. Gilbert (Moncalvo et al 2002;Matheny et al 2006;Garnica et al 2007;Justo et al 2011;Vizzini et al 2011;Sánchez-García et al 2014;Antonín et al, 2014Antonín et al, , 2017Antonín et al, , 2021Binder et al 2014;Yu et al 2014;Kalmer et al, 2018;Xu et al, 2019;Pei et al, 2021). Vizzini et al (2011) revealed that Melanoleuca is monophyletic, and divided into two subgenera, subg.…”