[as 'iuglandinus'] (1822) Caloporus spissus (Schwein.

Ryvarden (1973) Meruliopsis spissa (Schwein.

Parmasto (1968) Mucronoporus spissus (Schwein.)

Murrill (1942) Polyporus crociporus Berk.

Cooke (1886) Ceriporia spissa is a species of fungus in the family Irpicaceae.