Berkeley, M.J. (1844), Decades of fungi. First Decade. London Journal of Botany 3: 188 [tax. nov.]

• Type: "Swan River. Mr Drummond."

Patouillard, N. (1906), Champignons recueillis par. M.Seurat dans la Polynésie française. Bulletin trimestriel de la Société Mycologique de France 22: 51 [basionym]

basionym of: Ungulina portentosa (Berk.) Pat. legitimate

Cunningham, G.H. (1965), Polyporaceae of New Zealand. Bulletin of the New Zealand Department of Industrial Research 164: 106 [basionym]

basionym of: Piptoporus portentosus (Berk.) G.Cunn. legitimate

Rajchenberg, M. (1995), A taxonomic study of the Subantarctic Piptoporus (Polyporaceae, Basidiomycetes) II. Nordic Journal of Botany 15 (1): 114 [basionym]

basionym of: Laetiporus portentosus (Berk.) Rajchenb. legitimate

AusFungi (2019), AusFungi 21 Jan. 2019: - [nomenclatural synonym]

nomenclatural synonym of: Laetiporus portentosus (Berk.) Rajchenb. legitimate

Spirin, V., Runnel, K., Vlasák, J. et al. (2024), The genus Fomitopsis (Polyporales, Basidiomycota) reconsidered. Studies in Mycology 107: 242 [secondary reference]

• Comment: "Blasting available ITS and LSU sequences of P. portentosus shows that it could be a member of Fomitopsis. Additional markers (in particular, RPB1) are highly desirable to re-establish its generic position."

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