Parkerioideae, synonym Ceratopteridoideae, is one of the five subfamilies in the fern family Pteridaceae.

It includes only the two genera Acrostichum and Ceratopteris.

[1][2] The following diagram shows a likely phylogenic relationship between the two Parkerioideae genera and the other Pteridaceae subfamilies.

[3] Cryptogrammoideae Acrostichum Ceratopteris Pteridoideae Cheilanthoideae Vittarioideae

This Pteridaceae-related article is a stub.