An Unexpectedly High Number of New Sutorius (Boletaceae) Species From Northern and Northeastern Thailand

Vadthanarat, Santhiti; Halling, Roy E.; Amalfi, Mario; Lumyong, Saisamorn; Raspé, Olivier

doi:10.3389/fmicb.2021.643505

Cited by 9 publications

(7 citation statements)

References 27 publications

(49 reference statements)

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“…Paxilloboletus is most likely ectomycorrhizal, and an ITS sequence matching P. africanus has previously been isolated from ectomycorrhizal root tips of Uapaca bojeri (Phyllanthaceae) in Madagascar (L. Tedersoo, GenBank accession number FR731194). In the absence of data In recent years, we observe more and more that ectomycorrhizal taxa are separated based on a combination of molecular and very subtle morphological characteristics (Delgat et al 2019;De Kesel et al 2016;Vadthanarat et al 2021). Sibling species typically show few and feeble morphological differences.…”

Section: Discussionmentioning

confidence: 99%

Paxilloboletus gen. nov., a new lamellate bolete genus from tropical Africa

et al. 2022

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This study presents Paxilloboletus gen. nov., a new lamellate bolete genus represented by two tropical African species, Paxilloboletus africanus sp. nov. and Paxilloboletus latisporus sp. nov. Although the new taxa strongly resemble Paxillus (Paxillaceae), they lack clamp connections and form a separate generic clade within the Boletaceae phylogeny. The new species are lookalikes, morphologically only separable by their spore morphology. Descriptions and illustrations of the new genus and new species are given, as well as comments on ecology, distribution, and morphological differences with other gilled Boletaceae.

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Section: Discussionmentioning

confidence: 99%

Paxilloboletus gen. nov., a new lamellate bolete genus from tropical Africa

et al. 2022

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“…Roussel from northern Thailand 37 – 40 , Erythrophylloporus Ming Zhang & T.H. Li from Northern Thailand 41 and Sutorius Halling, Nuhn & Fechner from northern and northeastern Thailand 42 . New Amoeninae species are not the first Russula members described from dry dipterocarp forests, also R. aurantiopectinata was collected and is reported with Dipterocarpus tuberculatus from this type of habitat 12 .…”

Section: Discussionmentioning

confidence: 99%

Two new Russula species (fungi) from dry dipterocarp forest in Thailand suggest niche specialization to this habitat type

Wisitrassameewong

Manz

Hampe³

et al. 2022

Sci Rep

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Dry dipterocarp forests are among the most common habitat types in Thailand. Russulaceae are known as common ectomycorrhizal symbionts of Dipterocarpaceae trees in this type of habitat. The present study aims to identify collections of Russula subsection Amoeninae Buyck from dry dipterocarp forests in Thailand. A multi-locus phylogenetic analysis placed Thai Amoeninae collections in two novel lineages, and they are described here as R. bellissima sp. nov. and R. luteonana sp. nov. The closest identified relatives of both species were sequestrate species suggesting that they may belong to drought-adapted lineages. An analysis of publicly available ITS sequences in R. subsect. Amoeninae did not confirm evidence of any of the new species occurring in other Asian regions, indicating that dry dipterocarp forests might harbor a novel community of ectomycorrhizal fungi. Macromorphological characters are variable and are not totally reliable for distinguishing the new species from other previously described Asian Amoeninae species. Both new species are defined by a combination of differentiated micromorphological characteristics in spore ornamentation, hymenial cystidia and hyphal terminations in the pileipellis. The new Amoeninae species may correspond to some Russula species collected for consumption in Thailand, and the detailed description of the new species can be used for better identification of edible species and food safety in the region.

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“…As the diversity of Boletaceae in Thailand is high and remains understudied (e.g. Vadthanarat et al 2021 ), further studies may uncover additional species of Tylocinum or related taxa.…”

Section: Discussionmentioning

confidence: 99%

Tylocinum is no longer monotypic: Tylocinum brevisporum sp. nov. (Boletales, Boletaceae) from northern Thailand

Raghoonundon¹,

Davoodian²,

Phonemany³

et al. 2021

BDJ

Self Cite

321

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Tylocinum Y.C. Li & Zhu L. Yang 2016 is a Boletaceae genus belonging in subfamily Leccinoideae. It was described in 2016 from China and, prior to this study, it contained only one species, T. griseolum Y.C. Li & Zhu L. Yang 2016. During our survey of Boletaceae from Thailand, we collected some specimens that could be identified as a Tylocinum species, different from T. griseolum. The bolete specimens, collected in forests dominated by Dipterocarpaceae and Fagaceae in northern Thailand, are described as Tylocinum brevisporum Raghoonundon & Raspé sp. nov. Macroscopic and microscopic descriptions with illustrations are provided, as well as a 3-gene phylogeny, which confirms the new taxon’s position in Tylocinum. Tylocinum brevisporum differs from the only other known Tylocinum species (T. griseolum) by its brownish-grey colour, greyish-orange to brownish-orange colour change in the hymenophore when bruised, smaller pores (≤ 0.5 mm), longer tubes (up to 6 mm long), shorter and narrower basidiospores, longer and broader basidia and longer pleurocystidia relative to cheilocystidia. T. brevisporum is the second species from the genus Tylocinum and the only one to be found outside China thus far.

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An Unexpectedly High Number of New Sutorius (Boletaceae) Species From Northern and Northeastern Thailand

Cited by 9 publications

References 27 publications

Paxilloboletus gen. nov., a new lamellate bolete genus from tropical Africa

Paxilloboletus gen. nov., a new lamellate bolete genus from tropical Africa

Two new Russula species (fungi) from dry dipterocarp forest in Thailand suggest niche specialization to this habitat type

Tylocinum is no longer monotypic: Tylocinum brevisporum sp. nov. (Boletales, Boletaceae) from northern Thailand

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