Two little known species of Phallales, Mutinus zenkeri and Blumenavia angolensis, were collected on the volcanic island of São Tomé in the Gulf of Guinea, Africa. Descriptions and in situ photographs are provided for both species. Inferences of their phylogenetic relationships within the Phallales are provided based on partial nucLSU rDNA sequence data. © 2013 Adac. Tous droits réservés.