Rhymbocarpus is a genus of lichenicolous (lichen-dwelling) fungi in the family Cordieritidaceae.

[1] The genus was circumscribed by German mycologist Friedrich Wilhelm Zopf in 1896, with Rhymbocarpus punctiformis assigned as the type species.

[2] Host information is from Diederich (2018).

[5] Former Rhymbocarpus species:

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