Saprobic Dothideomycetes from Yunnan, China: introducing a new species, Queenslandipenidiella lingcangensis, and a new host record for Periconia byssoides

South China is a hotspot for fungal diversity. During investigations of saprobic fungi in Yunnan Province, we collected and identified a new species, Queenslandipenidiella lingcangensis, and a new host record of Periconia byssoides from dead woody twigs of Cryptocarya hainanensis and Ehretia acuminata, respectively. Both morphology and multigene phylogenetic analyses of combined ITS and LSU sequence data supported the placement of the new taxa within Queenslandipenidiella with high statistical support. The new taxon is characterised by numerous, erect, hairy, and dark brown to black colonies, macronematous, solitary or gregarious, oblong, dark brown, branching penicillate conidiophores with 5-6-septate, mono- to polyblastic, terminal, narrowly ellipsoidal to subcylindrical, pale brown to brown conidiogenous cells with 1-2-celled, globose to subglobose, aseptate, thick-walled, hyaline greenish-brown to brown conidia. We provide descriptions, illustrations, phylogenetic analyses results, and notes discussing the new species and the new record.