What are Lycogala confusum and                         L. exiguum? Revising authentic collections of myxomycetes                     in the light of a molecular-aided species concept

Leontyev, Dmytro V.; Schnittler, Martin

doi:10.1127/nova_hedwigia/2023/0820

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“…These studies increased the number of species of the Reticulariaceae to 52 ( Lado 2005 ), the number of genera to six and one more genus, Licaethalium , was re-erected within the Cribrariaceae for species, previously classified within Reticulariaceae ( Leontyev et al 2019b ). Fifteen species of the genus Lycogala , nine species and one subspecies of the genus Tubifera , three species of the genus Alwisia and two species of the genus Siphoptychium were described ( Leontyev et al 2014a , Leontyev et al 2014b ,Leontyev et al 2015, Leontyev et al 2019a, Lloyd et al 2019 , Leontyev et al 2022a , Leontyev et al 2022b , Leontyev and Schnittler 2023b , Leontyev et al 2023 ). The classical species L. epidendrum and T. ferruginosa have proven to represent species complexes, which contain at least 13 and 76 biological species, respectively ( Leontyev and Schnittler 2023a ).…”

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confidence: 99%

Dataset of barcoded Reticulariaceae: ten years of DNA sequencing

Leontyev,

Yatsiuk

2024

BDJ

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As a result of the ten years (2012–2022) work under the critical revision of the genera of Reticulariaceae, a set of papers was published. Collection data of hundreds of specimens, used as a material for these studies, were provided as supplements of corresponding papers, but remained unpublished in biodiversity databases. Here, we represent an occurrence dataset "Barcoded Reticulariaceae of the World", published in GBIF. It includes data on 523 myxomycete collections (including 36 types) gathered from five continents and spanning 24 countries. The dataset encompasses 43 distinct species and one subspecies of myxomycetes, including rare, endemic, and recently-described taxa. Species included to the database mainly belong to the genera Alwisia, Lycogala, Reticularia, Siphoptychium, Thecotubifera and Tubifera (Reticulariaceae), but as well Lindbladia and Licaethalium (Cribrariaceae). Nearly all of the research material, with the exception of several old collections, underwent molecular barcoding, primarily involving the 18S rDNA gene, but also the elongation factor 1α gene and mitochondrial cytochrome oxidase subunit I gene. For those sequences that are stored in the NCBI GenBank, accession numbers are provided in the dataset. Newly-described species make up a significant part of the studied herbarium collections; many of them can be characterised as common for their region. A particularly high level of taxonomic novelty is observed in Australia, which may be explained by the endemism of the local myxomycete biota.

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