Wood-rotting fungi as an important group within the Basidiomycota are known for their ecological role in the forest ecosystem in terms of decaying living and dead trees and recycling nutrients in forest ecosystems. Many new species were revealed in the last five years. In the present study, during an ongoing study on Scytinostroma, a new species of Scytinostroma was found from China. It is described and illustrated on the basis of the morphological and phylogenetic evidence. Scytinostromabambusinum sp. nov. is described as a new species, based on morphological and molecular evidence. It is characterised by annual, resupinate and broadly ellipsoid basidiomata with white to cream hymenophore, a dimitic hyphal structure with generative hyphae bearing simple septa, the presence of cystidioles and amyloid basidiospores measuring 5.5-7 × 4-5.3 µm. Phylogeny, based on molecular data of ITS and nLSU sequences, shows that the new species forms an independent lineage and is different in morphology from the existing species of Scytinostroma.

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