Calcipostia is a monotypic genus of fungi belonging to the family Fomitopsidaceae. The only species is Calcipostia guttulata.

The species scientific name is Calcipostia guttulata (Peck) B.K.Cui, L.L.Shen & Y.C.Dai, 2018.

Synonym: Postia guttulata (Peck) Jülich, 1982

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