Duportella kuehneroides Boid. et al., D. cf. miranda Boid. et al., D. tristicula (Berk. & Br.) Pat. and D. tristiculoides S.H. Wu& Z.C. Chen n. sp., are reported as new to Taiwan. Descriptions, photographs of fruit bodies, line drawings of microscopic characters, and results of cultural studies are provided for each species. Results of compatibility tests are presented for some species.