Two new species of Hymenochaetaceae on Dracaena cambodiana from tropical China

Abstract

Two new wood-rotting fungi in the family Hymenochaetaceae, Fulvifomes dracaenicolasp. nov. and Hymenochaete dracaenicolasp. nov., are described and illustrated from tropical China based on morphological characteristics and molecular data. It is worth to mention that both of them grow on Dracaena cambodiana which is a kind of angiosperm tree distributed in tropical regions. F. dracaenicola is characterised by perennial, pileate, triquetrous basidioma with yellowish brown fresh pores which becoming honey yellow with silk sheening upon drying, a dimitic hyphal system in trama and monomitic in context, and subglobose basidiospores measuring 4.8–5 × 4–4.1 μm. H. dracaenicola is characterised by annual, resupinate basidioma with a clay buff hymenophore, a dimitic hyphal system, absence of tomentum and cortex, presence of subulate setae, absence of cystidia, presence of cystidioles and simple hyphidia, and oblong ellipsoid basidiospores measuring 5.2–5.8 × 2.5–2.8 µm. The phylogenetic analyses based on ITS + nLSU rDNA sequences confirm the placement of two new species respectively in Fulvifomes and Hymenochaete. Phylogenetically closely related species to the two new species are discussed.

Fungal diversity notes 1512–1610: taxonomic and phylogenetic contributions on genera and species of fungal taxa

“…Fulvifomes malaiyanurensis shares similarities with F. elaeodendri and F. yoroui in triquetrous up to ungulate basidiomata and pores per mm (Tchoumi et al 2020;Olou et al 2019) and differs in other characters. Macroscopically, F. malaiyanurensis may resemble African (Tchoumi et al 2020), Asian (Zhou 2014(Zhou , 2015Liu et al 2020;Du et al 2021) and American (Ji et al 2017) known species but shows variation in other taxonomic characters.…”

Molecular and morphological data reveal two new species of Tropicoporus (Hymenochaetaceae, Basidiomycota) from Australia and tropical Asia

“…Sequences of Phellinus betulinus (Murrill) Parmasto, obtained from GenBank, were used as the outgroups following Wu et al (2022a) . The phylogenetic analyses followed the approach of Du et al (2021) . Maximum Likelihood ( ML ) and Bayesian Inference ( BI ) analyses were performed based on the two datasets.…”

Outline, Divergence Times, and Phylogenetic Analyses of Trechisporales (Agaricomycetes, Basidiomycota)

“…Total genomic DNA from the dried specimens is extracted by a CTAB rapid plant genome extraction kit (Aidlab Biotechnologies Company Limited, Beijing, China) according to the manufacturer’s instructions with some modifications ( Liu and Yuan, 2020 ; Du et al, 2021 ). The ITS regions are amplified with the primers ITS4 and ITS5 ( White et al, 1990 ).…”