New species of <i> Entolomataceae </i> from Cameroon

Largent, David L.; Henkel, Terry W.; Siegel, Noah; Koch, Rachel A.; Séné, Olivier; Hageman, K M; Aime, M. Catherine

doi:10.3114/fuse.2020.05.10

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…The species described by Karstedt et al (2020) from Brazil were mainly collected south of the tropical belt, often in montane habitats. The specimens of E. bisterigmatum and E. brunneoloaurantiacum , described by Largent et al (2019) from Cameroon, were collected at 650 m a.s.l. and represent the tropical collections at the lowest altitude known so far.…”

Section: Resultsmentioning

confidence: 99%

Phylogeny, taxonomy, and character evolution inEntolomasubgenusNolanea

Reschke¹,

Морозова²,

Dima³

et al. 2022

persoonia

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Nolanea is a well-known and long-established subgenus of the genus Entoloma traditionally defined mainly by the mycenoid basidiocarps of the included species. Until now, revisions of this subgenus including molecular data exist only on a regional scale. In this study, the phylogeny of species of Nolanea is analysed based on multi-gene DNA sequences including data of specimens from all continents. New primers are designed for the mitochondrial small subunit and RPB2. The performance of the DNA loci in reconstructing the phylogeny in subg. Nolanea is evaluated. An ancestral state reconstruction is used to infer the character state evolution as well as the importance and reliability of morphological characters used to define subclades below subgeneric rank. Based on the results, seven sections are recognised in Nolanea: the sections Holoconiota, Infularia, Mammosa, Nolanea, Papillata, Staurospora, and the newly described sect. Elegantissima. A large phylogeny based on the fungal barcode rDNA ITS with numerous type sequences is used to evaluate current species concepts. Several names are revealed to be synonyms of older names. Four species new to science are described, namely E. altaicum, E. argillaceum, E. cornicolor, and E. incognitum. Lectotypes, epitypes or neotypes are designated for E. cetratum, E. clandestinum, E. conferendum, E. cuspidiferum, E. hebes, E. minutum, E. nitens, and E. rhodocylix. The re-evaluation of the limits of subg. Nolanea leads to an altered concept excluding species with distinct, lageniform cheilocystidia. The section Ameides is placed in subg. Leptonia. For several species formerly accommodated in Nolanea, but excluded now, viz., E. lepiotoides, E. rhombisporum, E. subelegans, and E. velenovskyi the taxonomic position remains unclear, because of the yet unresolved phylogeny of the whole genus Entoloma.

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Section: Resultsmentioning

confidence: 99%

Phylogeny, taxonomy, and character evolution inEntolomasubgenusNolanea

Reschke¹,

Морозова²,

Dima³

et al. 2022

persoonia

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“…and Dicymbe altsonii Sandwith (Smith et al, 2011). Methods for field description, microscopic analyses, and image capture followed Largent et al (2008Largent et al ( , 2020. Fungi were field-dried with silica gel.…”

Section: Methodsmentioning

confidence: 99%

“…A Nikon Eclipse Ci compound microscope (Nikon, Tokyo, Japan) with Lumenera Infinity 2 imaging software (Teledyne Lumenera, Ottawa, ON, Canada) was used to measure microscopic features following Largent (1994) and capture photomicrographs following Largent et al (2020). In the taxonomic description, x refers to mean dimensions of structures ± standard deviations, E refers to range of length of structures divided by their width, Q refers to the mean quotient of the length of structures divided by their width, and n refers to the number of objects measured.…”

Section: Methodsmentioning

confidence: 99%

“…& Co-David (Romagnesi, 1941) (Romagnesi & Giles, 1979) are white and tricholomatoid but each differ from E. dicymbophilum in their heterodiametric basidiospores that are > 8.5 μm long. The Cameroonian Entoloma intricatum Largent, T.W.Henkel & R.A.Koch has large, off-white basidiomata but differs from E. dicymbophilum in its naucorioid stature with adnate lamella attachment and strongly heterodiametric, 5-to 7-angled basidiospores (Largent et al, 2020). Among white Neotropical Alboleptonia species described from Guyana or Panama, all differ from Entoloma dicymbophilum in their slender, collybioid or clitocyboid statures and heterodiametric basidiospores (Henkel et al, 2010b;Reschke et al, 2022).…”

Section: Species Descriptionmentioning

confidence: 99%

“…Many saprotrophic Entolomataceae species with collybioid or clitocyboid statures and angled heterodiametric basidiospores occur in tropical rain forests worldwide (e.g. Horak, 1978;Largent et al, 2020;Reschke et al, 2022). More rarely encountered in the tropics are species with tricholomatoid statures and angled isodiametric basidiospores (e.g.…”

Section: Introductionmentioning

confidence: 99%

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The Entolomataceae of the Pakaraima Mountains of Guyana Vii: Entoloma Dicymbophilum Sp. Nov. And a Key to Guyanese Species of Entoloma S. Str.

Henkel,

Largent

2023

Edinburgh J. Bot.

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Fungal diversity in the tropics: Entoloma spp. in Panama

et al. 2022

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Entoloma (Agaricales, Basidiomycota) is a species-rich genus with approximately 2000 species known worldwide. In Central America, however, information about the species of this genus is sparse, despite the generally high biodiversity in this region. Recently, 124 specimens of Entoloma were collected in Panama, Chiriquí Province. In the present publication, the morphology of 20 species represented by more than one specimen is described and depicted with photographs, line drawings, and scanning electron micrographs. Molecular phylograms based on ITS or concatenated ITS and partial nc LSU rDNA sequences are provided. The taxonomic status of these species is evaluated and 17 species of Entoloma are described as new to science. Only one species could be assigned to an already known species, viz. Entoloma belouvense. Nolanea albertinae, described from Brazil, appeared similar and is combined in E. belouvense on varietal level. The identifications of two further species are uncertain. At least 30 other species, including potentially new species, cannot formally be described due to insufficient material. A preliminary key to the species of the genus Entoloma in Panama is provided. The spatial shape of the polyhedroid basidiospores of Entoloma spp. is discussed based on literature and the micrographs generated for the present study. Our re-evaluations indicate that the type of polyhedroid basidiospore and the structure of its base are not reliable as diagnostic characters for the delimitation of subgenera in Entoloma.

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New species of Entolomataceae from Cameroon

Cited by 6 publications

References 16 publications

Phylogeny, taxonomy, and character evolution inEntolomasubgenusNolanea

Phylogeny, taxonomy, and character evolution inEntolomasubgenusNolanea

The Entolomataceae of the Pakaraima Mountains of Guyana Vii: Entoloma Dicymbophilum Sp. Nov. And a Key to Guyanese Species of Entoloma S. Str.

Fungal diversity in the tropics: Entoloma spp. in Panama

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