Dendrocorticiopsis orientalis gen. et sp. nov. of the Punctulariaceae (Corticiales, Basidiomycota) revealed by molecular data Author Wei, Chia-Ling Department of Biology, National Museum of Natural Science, Taichung 40453, Taiwan Author Chen, Che-Chih https://orcid.org/0000-0002-2268-439X Department of Biology, National Museum of Natural Science, Taichung 40453, Taiwan & Department of Plant Pathology, National Chung Hsing University, Taichung 40227, Taiwan & Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan Author He, Shuang-Hui School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China heshuanghui@bjfu.edu.cn Author Wu, Sheng-Hua Department of Biology, National Museum of Natural Science, Taichung 40453, Taiwan & Department of Plant Pathology, National Chung Hsing University, Taichung 40227, Taiwan shwu@mail.nmns.edu.tw text MycoKeys 2022 2022-05-31 90 19 30 http://dx.doi.org/10.3897/mycokeys.90.84562 journal article http://dx.doi.org/10.3897/mycokeys.90.84562 1314-4049-90-19 D6C5E6F189285F0083F02EBDB162E934 Dendrocorticiopsis Sheng H. Wu, C.L. Wei & S.H. He gen. nov. Diagnosis. Dendrocorticiopsis differs from other genera by having strictly resupinate basidiomata, ivory hymenphore, a compact texture, a monomitic hyphal system, nodose-septate hyphae, encrusted cystidia, dendrohyphidia and ellipsoid to ovoid basidiospores. Description. Basidiomata resupinate, effused, adnate, membranaceous. Hymenial surface brownish ivory, grayish ivory to lilac ivory, smooth. Hyphal system monomitic; generative hyphae nodose-septate, colorless, slightly thick- to thick-walled. Subiculum uniform, with compact texture, usually with crystal masses; hyphae fairly horizontal. Hymenial layer thickening, with compact texture, usually with oily materials, hyphae more or less vertical. Dendrohyphidia numerous, thick-walled toward base, colorless. Cystidia clavate, apically with resinous materials. Basidia clavate to subclavate, 4-sterigmata, thick-walled toward base. Basidiospores ellipsoid to ovoid, sometimes broadly ellipsoid, smooth, thin-walled or occasionally slightly thick-walled, negative in Melzer's reagent, acyanophilous. Type species. Dendrocorticiopsis orientalis . Etymology. Dendrocorticiopsis refers to the morphological resemblance to Dendrocorticium .