The genus Ephemerum (Pottiaceae, Bryopsida) in Central Africa (Gabon, Democratic Republic of the Congo, Rwanda) with description of two new species

Abstract

Two new species of Ephemerum from Rwanda (E. rwandense) and Gabon (E. pocsii) are described. The identity of Ephemerum pechuelii is discussed. As the type is missing, the species can not be defined with high confidence. According to the protologue, the species has rather wide leaves with entire margin that are hardly recurved. A key to all species of Ephemerum from Africa is provided.