Synonymy:
Cortinarius crassus Fr., Epicrisis Systematis Mycologici: 257 (1838) [1836-1838]
Gomphos crassus (Fr.) Kuntze, Revis. gen. pl. (Leipzig) 2: 853 (1891)
Hebeloma crassum (Fr.) Ricken, Die Blätterpilze: 121 (1911)
Inoloma crassum (Fr.) Ricken, Vadem. Pilzfr.: 87 (1918)

Cortinarius pseudocrassus Joss. ex P.D. Orton, Trans. Br. mycol. Soc. 43(2): 217 (1960)

Cortinarius crassus f. agathosmus Rob. Henry, Docums Mycol. 19(no. 73): 67 (1988)

Cortinarius crassus f. balteatoalbus Rob. Henry, Docums Mycol. 19(no. 73): 67 (1988)

Cortinarius pseudocrassus var. lathreus Bidaud, in Bidaud, Moënne-Loccoz, Reumaux & Henry, Atlas des Cortinaires (Meyzieu) 10: 373 (2000)

Position in classification:
Cystinarius, Cortinariaceae, Agaricales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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