Phialanthus is a genus of flowering plants in the coffee family, Rubiaceae. There are about 20 species, 17 of which occur in Cuba. Species include: \n* Phialanthus acunae \n* Phialanthus alainii \n* Phialanthus bissei \n* Phialanthus ellipticus \n* Phialanthus glaberrimus \n* Phialanthus grandifolius \n* Phialanthus guantanamensis \n* Phialanthus hispaniolae \n* Phialanthus inflatus \n* Phialanthus jamaicensis Urb. \n* Phialanthus linearis \n* Phialanthus lineraris \n* Phialanthus macrocalyx \n* Phialanthus macrostemon \n* Phialanthus marianus \n* Phialanthus myrtilloides \n* Phialanthus oblongatus \n* Phialanthus parvifolius \n* Phialanthus peduncularis \n* Phialanthus resinifluus \n* Phialanthus revolutus Urb. \n* Phialanthus rigidus \n* Phialanthus stillans