Three new species of Cantharellales and Hymenochaetales from Pinus massoniana in China

Three new wood-inhabiting fungi species, found on Pinus massoniana, are proposed, based on a combination of morphological features and molecular evidence. Botryobasidium massonianae, belonging to Cantharellales, is characterised by fluffy, pellicular basidiomata, hypochnoid hymenophoral surface, generative hyphae simple septate, basidia with four to six sterigmata and basidiospores measuring 6.3–9.2 × 2.8–3.9 µm. Peniophorella crassibasidiata, belonging to Hymenochaetales, is characterised by soft coriaceous basidiomata, thick-walled generative hyphae, the presence of three types of cystidia, cylindrical basidiospores measuring 8.4–12.4 × 3.1–4.2 µm.

Peniophorella variegata, belonging to Hymenochaetales, is characterised by farinaceous basidiomata, smooth hymenophoral surface, three types of cystidia, the presence of hyphidia and basidiospores measuring 7.9–10.8 × 3.9–5.1 µm. Phylogenetic analyses of the combined ITS + nLSU dataset using Maximum Likelihood and Bayesian Inference confirmed that one new species belongs to the genus Botryobasidium (Cantharellales), the other two new species belong to the genus Peniophorella (Hymenochaetales), respectively.

Phylogenetically related and morphologically similar species to these three new species are discussed.