Porpoloma aranzadiiis a Synonym ofMycena duraFurther Notes inMycenasect.Calodontes

Olariaga, Ibai; Pérez-De-Gregorio, M.À.; Arrillaga, Pedro

doi:10.7872/crym/v36.iss3.2015.253

Cited by 5 publications

(11 citation statements)

References 14 publications

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“…Violacella [ 21 , 23 ]. As observed in other studies [ 1 , 18 , 20 , 25 ], these subsections are polyphyletic, and the micromorphological characters used in the infrageneric classification exhibit homoplasy. The presence of oxalate crystals on the basal mycelium in the Mexican species was confirmed, consistent with reports by Olariaga et al and Clémençon for certain species of the M. sect.…”

Section: Discussionsupporting

confidence: 72%

“…The presence of oxalate crystals on the basal mycelium in the Mexican species was confirmed, consistent with reports by Olariaga et al and Clémençon for certain species of the M. sect. Calodontes from Europe [ 25 , 26 ]. The information presented here enhances our understanding of the distribution and ecological aspects of the members of M. sect.…”

Section: Discussionmentioning

confidence: 99%

“…Maas Geest., which includes species with amyloid basidiospores, clavate, fusiform, subcylindrical cheilocystidia that are apically rounded or somewhat attenuated, and hyaline pleurocystidia; and Violacella Singer ex Maas Geest., the species of which subsection have inamyloid basidiospores, clavate, subcylindrical, subfusiform cheilocystidia that are apically obtuse, or rarely mucronate, and absent pleurocystidia [ 1 , 21 , 23 ]. Phylogenetic studies have revealed that subsection Purae is polyphyletic [ 1 , 16 , 20 , 25 ]. Additionally, Harder et al [ 17 ] concluded that the amyloid reaction of basidiospores is not a reliable diagnostic feature for distinguishing species within M .…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, Harder et al [ 18 ] identified 11 cryptic lineages within M. pura . In the studies of Olariaga et al [ 25 ] and Li et al [ 19 , 20 ], three nuclear DNA regions were used to describe new taxa.…”

Section: Introductionmentioning

confidence: 99%

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New Species of Bioluminescent Mycena Sect. Calodontes (Agaricales, Mycenaceae) from Mexico

Cortés-Pérez,

Guzmán-Dávalos,

Ramírez-Cruz

et al. 2023

JoF

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Mycena section Calodontes is macromorphologically distinguished by the collybioid or mycenoid basidiome, which is pink, purple, or violet, and, rarely, reddish-brown or yellowish. It is further characterized by the presence of oxalate crystals in the basal mycelium. The section comprises approximately 40 taxa, of which only five species and one variety exhibit bioluminescence. As part of an extensive study on Mycena sect. Calodontes in Mexico, specimens belonging to this section were collected and subjected to morphological analysis. Sequences from the nuclear internal transcribed spacer (ITS) of nuclear ribosomal DNA, RNA polymerase II large subunit Rpb1 (rpb1), and translation elongation factor-1α (Tef-1α) were generated to infer the relationships within Mycena sect. Calodontes using maximum likelihood and Bayesian inference. The phylogenetic evidence, along with the macro- and micromorphological features, supported the recognition of five new bioluminescent species within Mycena sect. Calodontes. Detailed macro- and micromorphological descriptions, line-drawing illustrations, and light and dark photographs of the new species are provided.

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Section: Discussionsupporting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Species of Bioluminescent Mycena Sect. Calodontes (Agaricales, Mycenaceae) from Mexico

Cortés-Pérez,

Guzmán-Dávalos,

Ramírez-Cruz

et al. 2023

JoF

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“…The same absence of type annotations applies also to GenBank deposits related to other European Mycena studies, e.g. for the epitype of M. pearsoniana (Harder et al 2012), the holotypes of M. dura and M. luteovariegata (Harder et al 2013), several potential topotypes for older species such as M. pura, M. pelianthina and M. rosea (species that have no physical type specimen) or to the types sequenced by Olariaga et al (2015) in his study of Mycena sect. Calodontes.…”

Section: Mycenamentioning

confidence: 70%

The unbearable lightness of sequenced-based identification

Hofstetter

Buyck

Eyssartier³

et al. 2019

Fungal Diversity

109

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Using the basic GenBank local alignment search tool program (BLAST) to identify fungi collected in a recently protected beech forest at Montricher (Switzerland), the number of ITS sequences associated to the wrong taxon name appears to be around 30%, even higher than previously estimated. Such results rely on the in-depth re-examination of BLAST results for the most interesting species that were collected, viz. first records for Switzerland, rare or patrimonial species and problematic species (when BLAST top scores were equally high for different species), all belonging to Agaricomycotina. This paper dissects for the first time a number of sequence-based identifications, thereby showing in every detail-particularly to the user community of taxonomic information-why sequence-based identification in the context of a fungal inventory can easily go wrong. Our first conclusion is that in-depth examination of BLAST results is too time consuming to be considered as a routine approach for future inventories: we spent two months on verification of approx. 20 identifications. Apart from the fact that poor taxon coverage in public depositories remains the principal impediment for successful species identification, it can be deplored that even very recent fungal sequence deposits in GenBank involve an uncomfortably high number of misidentifications or errors with associated metadata. While checking the original publications associated with top score sequences for the few examples that were here reexamined , a positive consequence is that we uncovered over 80 type sequences that were not annotated as types in GenBank. Advantages and pitfalls of sequence-based identification are discussed, particularly in the light of undertaking fungal inventories. Recommendations are made to avoid or reduce some of the major problems with sequence-based identification. Nevertheless, the prospects for a more reliable sequence-based identification of fungi remain quite dim, unless authors are ready to check and update the metadata associated with previously deposited sequences in their publications.

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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.

Vizzini

Consiglio

Marchetti³

et al. 2022

Mycol Progress

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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.

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Porpoloma aranzadiiis a Synonym ofMycena duraFurther Notes inMycenasect.Calodontes

Cited by 5 publications

References 14 publications

New Species of Bioluminescent Mycena Sect. Calodontes (Agaricales, Mycenaceae) from Mexico

New Species of Bioluminescent Mycena Sect. Calodontes (Agaricales, Mycenaceae) from Mexico

The unbearable lightness of sequenced-based identification

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.

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