Fuscoporia hainanensis sp. nov. (Hymenochaetales, Basidiomycota), a new member of the F. contigua group

Abstract

A new species, Fuscoporia hainanensis sp. nov. (Hymenochaetaceae, Basidiomycota), is decribed based on specimens from China. Phylogenetic analyses on the nLSU and ITS+nLSU+TEF1 datasets revealed that the new species was nested within the F. contigua group and formed a strongly supported lineage distinct from other species. The new species is characterized by annual, resupinate basidiocarps with medium pores (4–6 per mm), aseptate skeletal hyphae, presence of mycelial setae, hymenial setae and cystidioles, and cylindric basidiospores (5.0–6.2 × 2.3–3.0 μm). A key to the accepted period species of resupinate and mycelial setae present species of Fuscoporia is provided.

Diversity and molecular diagnostics of fungi and oomycetes in plants

“…However, S. hydneum differs from S. punctatum by its longer aculei (2-3 mm) and wider basidiospores (4.2-5.0 × 3.6-4.1 µm;Yuan and Dai, 2005b); S. tenuispinum differs from S. punctatum in having whitish to dirty-ochraceous hymenial surface and narrower basidia (12-24 × 3.5-4.8 µm;Spirin et al, 2007); S. yunnanense differs in its fimbriate margin and shorter basidia (10. 5-15 × 5-6 µm;Dong et al, 2022). Steccherinum punctatum resembles S. aggregatum Hjortstam & Spooner, S. fragile and S. xanthum in having a monomitic hyphal system.…”

“…It is a cosmopolitan genus characterized by a combination of resupinate to effused-reflexed or pileate basidiome with a membranaceous consistencey, hymenophore odontioid to hydnoid, a dimitic hyphal structure with clamp connections or simple-septate generative hyphae, cystidia numerous, strongly encrusted in the obtuse apex, basidia subclavate and basidiospores hyaline, thin-walled, smooth, ellipsoid to subcylindrical, acyanophilous and negative in Melzer's reagent (Fries, 1821;Gray, 1821;Bernicchia and Gorjoń, 2010). So far, about 80 species have been accepted in this genus worldwide (Fries, 1821;Banker, 1906;Banker, 1912;Cunningham, 1958;Snell and Dick, 1958;Lindsey and Gilbertson, 1977;Ryvarden, 1978;Lindsey and Gilbertson, 1979;Burdsall and Nakasone, 1981;Melo, 1995;Legon and Roberts, 2002;Yuan and Dai, 2005a;Spirin et al, 2007;Hjortstam and Ryvarden, 2008;Bernicchia and Gorjoń, 2010;Miettinen et al, 2012;Yuan and Wu, 2012;Miettinen and Ryvarden, 2016;Westphalen et al, 2018;Liu and Dai, 2021;Westphalen et al, 2021;Wu et al, 2021b;Dong et al, 2022). In recent years, several new Steccherinum species were described in China, S. fragile Z.B.…”

“…In recent years, several new Steccherinum species were described in China, S. fragile Z.B. Liu (Liu and Dai, 2021;Wu et al, 2021b;Dong et al, 2022).…”

Taxonomic and phylogenetic contributions to Fuscoporia (Hymenochaetales, Basidiomycota): two new species from Hawaii with a key to North American species

“…Large number of Fuscoporia new species and new combinations have been discovered in recent years, and at present, more than 90 species are accepted in the genus ( Chen et al., 2020 ; Tchoumi et al., 2020 ; Vlasák et al, 2020 ; Yuan et al., 2020 ; Dai et al., 2021 ; Chen et al., 2022 ; Hussain et al., 2022 ; Wu et al., 2022a , b). Fuscoporia is considered to be a complex genus with still unsettled taxonomy.…”