Basionym Name:Umbilicaria formosana Frey, Hedwigia 71: 115 (1931)
Homotypic synonyms:Gyrophora formosana (Frey) M. Satô, Index Plantarum Nipponicarum, IV Lichenes: 115 (1943)Omphalodiscus formosanus (Frey) Schol., Nytt Mag. Natur. 75: 24 (1936)Omphalodiscus krascheninnikovii var. formosanus (Frey) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 88 (1950)