"Afrika" . . "Angiosperms of the Islands of the Gulf of Guinea (Fernando Po, Príncipe, S. Tomé, and Annobon)" . . . . . "Angiosperms of the islands of the Gulf of Guinea <Fernando Po, Principe, S. Tomé, and Annobon>" . . . . . . . . . "Angiosperms of the islands of the Gulf of Guinea (Fernando Po, Príncipe, S. Tomé and Annobon)" . . . . .