New data in Porotheleaceae and Cyphellaceae: epitypification of Prunulus scabripes Murrill, the status of Mycopan Redhead, Moncalvo & Vilgalys and a new combination in Pleurella Horak emend.

Abstract

Mycopan is a genus established for Hydropus scabripes by Redhead, Moncalvo & Vilgalys (in Redhead 2013). They considered the genus to be distinct based on morphology and the phylogenetic analysis by Moncalvo et al. (2002) which included a sequence of Hydropus scabripes (AF042635, DAOM 192847) unrelated to the type species of Hydropus (H. fuliginarius). Subsequent sequences of material identified as Hydropus scabripes are not conspecific with the sequence of DAOM 192847. We consider this sequence (obtained from a mycelium culture) to be misidentified. We investigated the true phylogenetic position of authentic Mycopan including genera previously included in Cyphellaceae and Porotheleaceae. Sixteen collections of M. scabripes from Europe and North America were studied on morphological and molecular basis (nrITS and nrLSU sequences). No sequences were obtained from the holotype of Mycopan scabripes, and we designate an epitype to fix the interpretation of this species and the genus Mycopan. Mycopan is maintained as a good genus nested within Cyphellaceae as sister to the mycenoid genus Atheniella. The misidentified Hydropus scabripes AF042635 (DAOM 192847) represents a different species that is closely related to the holotype (and a new Italian collection) of Hebelomina microspora and the monospecific genus Pleurella described from New Zealand. Consequently, Hebelomina microspora is transferred to the emended genus Pleurella, which is sister to Baeospora within the Cyphellaceae. Additionally, based on these phylogenetic results, an updated taxonomic arrangement of Cyphellaceae and Porotheleaceae is proposed, emphasizing once again the polyphyletic nature of Hydropus and Gerronema.

The Conservation and Study of Macromycetes in the Komarov Botanical Institute Basidiomycetes Culture Collection—Their Taxonomical Diversity and Biotechnological Prospects

“…The taxonomic position of the collection's strains is given mainly according to He et al [19], Wijatawardene et al [20], and Kalichman et al [21] for Agaricales, taking into account a number of modern publications concerning some taxonomic groups [22][23][24][25][26][27][28][29][30].…”

Cyphelloporia bialoviesensis (Fungi, Agaricales)—a new genus and species for a giant cyphelloid fungus from Białowieża virgin forest in Poland

“…Rectipilus represented by type species R. fasciculatus was recovered as a member of /phyllotopsis clade (Thorn et al 2005, = Henningsomyces/Rectipilus clade B of Bodensteiner et al 2004). In the newest work on classification of this group of Agaricales, Vizzini et al (2022) claim that Rectipilus and Henningsomyces belong to Cyphellaceae. In their phylograms, these two cyphelloid genera form a distinct lineage together with the corticioid Acanthocorticium Baltazar, Gorjón & Rajchenberg (in Baltazar et al 2015: 456).…”

“…In their phylograms, these two cyphelloid genera form a distinct lineage together with the corticioid Acanthocorticium Baltazar, Gorjón & Rajchenberg (in Baltazar et al 2015: 456). However, Vizzini et al (2022) have no true Rectipilus in their analyses as both samples used by them and labelled R. fasciculatus and R. idahoensis belong to the Henningsomyces candidus/puber clade (GEL4485-sequence AJ406539, PB313/RA-sequences AY571057 and AY571020; see Thorn et al 2005Thorn et al : 1146. As shown above, this clade of true Henningsomyces species is very distant from the Cyphelloporia-Rectipilus lineage (Fig.…”

New Insights into Lichenization in Agaricomycetes Based on an Unusual New Basidiolichen Species of Omphalina s. str.

“…[ 15 , 16 , 17 , 18 ]. Inside the Agaricales there are omphalinoid taxa in the suborders Hygrophorineae (family Hygrophoraceae, subfamily Lichenomphaloideae [ 13 ]), Marasmiineae (family Porotheleaceae [ 19 , 20 ]) and Tricholomatineae (family Omphalinaceae [ 21 ]). Rickenellaceae is the family encompassing omphalinoid taxa in the Hymenochaetales [ 17 , 18 , 22 ].…”