Petitiocodon is a monotypic genus of flowering plants belonging to the family Rubiaceae.[1] It only contains one known species, Petitiocodon parviflorum (Keay) Robbr.
It is native to Nigeria and Cameroon.
The genus name of Petitiocodon is in honour of Ernest Marie Antoine Petit (1927–2007), a Belgian professor of botany and botanical garden director.[2] The Latin specific epithet of parviflorum is a portmanteau word made-up of 'parvi-' from parvus meaning small and also '-florum' from flora meaning flower.[3] Both the genus and the species were first described and published in Bull. Jard. Bot. Natl. Belg. Vol.58 on page 116–119 in 1988.