Basionym: Polyporus xanthus Fr., Observationes mycologicæ 1: 128 (1815) [MB#449602] Obligate synonyms: - Poria xantha (Fr.) Cooke, Grevillea 14 (72): 112 (1886) [MB#230594] - Antrodia xantha (Fr.) Ryvarden, Norwegian Journal of Botany 20 (1): 8 (1973) [MB#308787] - Daedalea xantha (Fr.) A. Roy & A.B. De, Mycotaxon 61: 421 (1997) [MB#436505] - Physisporus xanthus (Fr.) P. Karst., Bidrag till Kännedom av Finlands Natur och Folk 37: 58 (1882) [MB#472346] Taxonomic synonyms: - Poria greschikii Bres., Annales Mycologici 18 (1-3): 38 (1920) [MB#231209] - Chaetoporellus greschikii (Bres.) Bondartsev & Singer ex Bondartsev, The Polyporaceae of the European USSR and Caucasia: 168 (1953) [MB#294720] - Polyporus sulphurellus Peck, Annual Report on the New York State Museum of Natural History 42: 123 (1889) [MB#472870] - Poria sulphurella (Peck) Sacc., Sylloge Fungorum 9: 190 (1891) [MB#171042] - Polyporus flavus P. Karst., Sydvestra Finlands Polyporeer: 40 (1859) [MB#362390] - Amyloporiella flava A. David & Tortic, Transactions of the British Mycological Society 83 (4): 662 (1984) [MB#105916] - Polyporus selectus P. Karst., Not. Sällsk. Fauna Flora fenn. Förh.: 360 (1868) [MB#451050] - Antrodia flava (P. Karst.) Teixeira, Revista Brasileira de Botânica 15 (2): 125 (1992) [MB#357798] - Poria selecta (P. Karst.) Rodway & Cleland, Pap. & Proc. Roy. Soc. Tasmania 1930: 15 (1930) [MB#454807] - Poria selecta var. selecta (?) [MB#455196] - Physisporus vulgaris var. flavus P. Karst., L. Rabenhorstii fungi Europaei et extraeuropaei exsiccati, Klotzschii herbarii vivi mycologici continuatio. Editio nova. Series secunda Cent. 28: no. 2728 (1882) [MB#842598] - Poria suaveolens Bagl. & Razzore, Annls Soc. bot. Lyon: 17 (1911) [MB#174890] - Physisporus flavus P. Karst., Sydvestra Finlands Polyporeer: 40 (1859) [MB#444236] - Poria selectus (P. Karst.) Rodway & Cleland (1930) [MB#187929] - Polyporus sulphurella Peck (1889) [MB#229062]