The genus Leptolejeunea (Spruce) Schiffn. was newly discovered for La Réunion Island. The species Leptolejeunea maculata (Mitt.) Schiffn. was sampled living as epiphyllous in the framework of research surveys on the dynamics of bryological vegetation on lowland lava flows. This species was until now only recorded in Mauritius Island for the Mascarenes archipelago.