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Four new species of Aleurodiscus sensu lato with echinulate basidiospores are described from East Asia: A. alpinus, A. pinicola, A. senticosus, and A. sichuanensis. Aleurodiscus alpinus is from northwest Yunnan of China where it occurs on Rhododendron in montane habitats. Aleurodiscus pinicola occurs on Pinus in montane settings in Taiwan and northwest Yunnan. Aleurodiscus senticosus is from subtropical Taiwan, where it occurs on angiosperms. Aleurodiscus sichuanensis is reported from southwest China on angiosperms in montane environments. Phylogenetic relationships of these four new species were inferred from analyses of a combined dataset consisting of three genetic markers, viz. 28S, nuc rDNA ITS1-5.8S-ITS2 (ITS), and a portion of the translation elongation factor 1-alpha gene, TEF1.