Phialiphora

Phialiphora is a genus of flowering plants in the family Rubiaceae, native to Madagascar.

Species
, Plants of the World Online accepted the following species:
 * Phialiphora bevazahensis Groeninckx
 * Phialiphora capitulata Groeninckx
 * Phialiphora glabrata De Block
 * Phialiphora valida De Block