<strong><em>Gerhardtia yunnanensis</em> (Agaricales, Lyophyllaceae), a new species from southwest China</strong>

Abstract

Gerhardtia yunnanensis is described as a new species from southwestern China. The species is characterized by its medium to large basidiomata with a yellow-brown to reddish brown pileus with a translucent-striate pale margin, weakly curved stipe, basidia with both cyanophilic and siderophilic reactions, basidiospore walls having a cyanophilic reaction, basidiospores with minute granular or verruculose ornamentation under SEM, narrowly clavate to irregular or curved clavate cheilocystidia and pleurocystidia, and absence of clamp connections. A comparison of all taxa of the genus was performed based on morphological and ITS and LSU molecular data. Furthermore, we provide a key to the known species of Gerhardtia worldwide.

Description of a new species of <i>Gerhardtia</i> (<i>Lyophyllaceae</i>, <i>Agaricales</i>) from Japan based on morphological and molecular phylogenetic analyses and live culture characteristics

“…Other Gerhardtia species are morphologically distinct from G. venosolamellata ( Table 3 ). Gerhardtia borealis , G. cibaria , G. citrinolobata , G. foliicola , G. leucopaxilloides , G. suburens , and G. yunnanensis have denser lamellae ( Clémençon, 1968 ; Bigelow & Smith, 1969 ; Matheny et al, 2017 ; Endo et al, 2019 ; Mu et al, 2021 ). Gerhardtia foliicola , G. leucopaxilloides , and G. yunnanensis have distinct brownish pilei.…”

“…According to the Index Fungorum fungal database ( , 01 Feb 2021) and recent publications ( Li, Li, Wang, Deng, & Song, 2017 ; Vizzini et al, 2017 ; Mu, Huang, Huang, Yang, & Tang, 2021 ), eleven species are currently recognized in Gerhardtia : G. borealis (= G. incarnatobrunnea ); G. cibaria (Singer) Matheny, Sánchez-García & T.J. Baroni [= Pleurocollybia cibaria Singer]; G. citrinolobata Angelini & Vizzini; G. foliicola (Har. Takah.)…”

“…& Co-David] and G. pudica (Bon & Contu) Vizzini, Consiglio & Setti [= Calocybella pudica (Bon & Contu) Vizzini, Consiglio & Setti] are currently excluded from the genus ( Co-David, Langeveld, & Noordeloos, 2009 ; Vizzini et al, 2015 ). Of the eleven species with valid names, the nrDNA sequences and molecular phylogenetic positions of eight species ( G. borealis , G. cibaria , G. citrinolobata , G. foliicola , G. highlandensis , G. pseudosaponacea , G. sinensis , and G. yunnanensis ) have been elucidated ( Vizzini et al, 2015 , 2017 ; Li et al, 2017 ; Matheny et al, 2017 ; Endo et al, 2019 ; Mu et al, 2021 ). The monophyly of the genus is strongly supported by these studies.…”

Gerhardtia tomentosa and Ossicaulis borealis (Agaricales, Lyophyllaceae)—Two new species from northeast China

“…The sequences obtained in this study were checked and edited using Bioedit v7.0.9 (Hall, 1999 ) and aligned with those available in GenBank using Blastn. According to the Blastn results and outcomes of recent phylogenetic studies on Lyophyllaceae (Mešic and Tkalcec, 2009 ; Bellanger et al, 2015 ; Li et al, 2017 ; Matheny et al, 2017 ; Endo et al, 2019 , 2021 ; Mu et al, 2021 ), high-quality sequences were downloaded from GenBank databases. Alignments were, then, generated for each single ITS and nrLSU dataset using MAFFT v7.313 (Katoh and Standley, 2013 ).…”

Additions to Lyophyllaceae s.l. from China

“…The species of Lyophyllaceae are distributed all over the world [12,18,19]. Recently, many new species and new recorded species have also been reported in China [10,[15][16][17][20][21][22][23][24][25]. To date, only 14 Calocybe species have been reported in China: Calocybe aurantiaca X.D.…”