Imperator rhodopurpureus (Smotl.) Assyov, Bellanger, Bertéa, Courtec., Koller, Loizides, G. Marques, J.A. Muñoz, Oppicelli, D. Puddu, F. Rich. & P.-A. Moreau, Index Fungorum 243: 1 (2015)

Synonymy:
Boletus rhodopurpureus Smotl., C.C.H. 29(1-3): 31 (1952)
Suillellus rhodopurpureus (Smotl.) Blanco-Dios, Index Fungorum 211: 2 (2015)

Boletus rhodopurpureus f. polypurpureus Smotl., C.C.H. 29(1-3): 31 (1952)
Boletus rhodopurpureus var. polypurpureus (Smotl.) Hlaváček, Mykologický Sborník 73(3): 86 (1996)
Imperator rhodopurpureus var. polypurpureus (Smotl.) Mikšík, in Mikšík, Gelardi & Simonini, European boletes 1: 701 (2025)

Boletus rhodopurpureus f. xanthopurpureus Smotl., C.C.H. 29(1-3): 31 (1952)
Boletus xanthopurpureus (Smotl.) Hlaváček, Mykologický Sborník 63(5): 132 (1986)
Suillellus rhodopurpureus f. xanthopurpureus (Smotl.) Blanco-Dios, Index Fungorum 211: 2 (2015)
Imperator rhodopurpureus f. xanthopurpureus (Smotl.) Mikšík, Index Fungorum 260: 1 (2015)

Boletus rhodopurpureus f. poridecolorans Klofac, Österr. Z. Pilzk. 14: 37 (2005)
Suillellus rhodopurpureus f. poridecolorans (Klofac) Blanco-Dios, Index Fungorum 211: 2 (2015)
Imperator rhodopurpureus f. poridecolorans (Klofac) Mikšík, Index Fungorum 260: 1 (2015)

Position in classification:
Imperator, Boletaceae, Boletales, Agaricomycetidae, Agaricomycetes, Basidiomycota, Fungi

Note:
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