Basionym:
Corticium sordidum P. Karst., Meddelanden af Societas pro Fauna et Flora Fennica 9: 65 (1883) [MB#165561]
Obligate synonyms:
- Peniophora sordida (P. Karst.) Burt, Annals of the Missouri Botanical Garden 12 (3): 280 (1925) [MB#473237]
- Peniophora sordida (P. Karst.) Höhn. & Litsch., Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.-naturw. Klasse Abt. I 115: 1559 (1906) [MB#473420]
- Peniophora sordidella Höhn. & Litsch., Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften Math.-naturw. Klasse Abt. I 115: 1605 (1906) [MB#181023]
- Terana sordida (P. Karst.) Kuntze, Revisio generum plantarum 2: 872 (1891) [MB#440641]
- Grandiniella sordida (P. Karst.) Zmitr. & Spirin, Mycena 6: 37 (2006) [MB#504957]
Taxonomic synonyms:
- Peniophora arachnoidea Burt, Annals of the Missouri Botanical Garden 12 (3): 220 (1926) [MB#257152]
- Peniophora pelliculosa P.H.B. Talbot, Bothalia 6: 63 (1951) [MB#302448]
- Phanerochaete pelliculosa (P.H.B. Talbot) Jülich, Persoonia 10 (3): 334 (1979) [MB#319720]
- Cerocorticium albissimum Rick, Brotéria, Ci. nat.: 169 (1934) [MB#256234]
- Hypochnus sordidellus (Höhn. & Litsch.) Rick, Brotéria, Ci. nat.: 152 (1934) [MB#278442]
- Kneiffia rudior Rick, Brotéria Série Trimestral: Ciências Naturais 3 (2): 69 (1934) [MB#277011]
- Peniophora rudior (Rick) Rick, Iheringia, Botânica 4: 103 (1959) [MB#335795]
- Ceracea subsulphurea Rick, Iheringia, Botânica 2: 50 (1958) [MB#327600]
- Corticium glabrum Berk. & M.A. Curtis, Grevillea 1 (12): 178 (1873) [MB#185720]
- Terana glabra (Berk. & M.A. Curtis) Kuntze, Revisio generum plantarum 2: 872 (1891) [MB#440549]
- Corticium scutellare Berk. & M.A. Curtis, Grevillea 2 (13): 4 (1873) [MB#175500]
- Athelia scutellaris (Berk. & M.A. Curtis) Gilb., Fungi that Decay Ponderosa Pine: 42 (1974) [MB#309352]
- Terana scutellaris (Berk. & M.A. Curtis) Kuntze, Revisio generum plantarum 2: 872 (1891) [MB#440635]
- Peniophora livescens P. Karst. ex Bres., Annales Mycologici 9: 427 (1911) [MB#440282]
- Peniophora cremea var. glaucescens Bourdot & Galzin, Bulletin de la Société Mycologique de France 28 (4): 396 (1913) [MB#440264]