American Bryological and Lichenological Society

BLAM - Bryologisch-lichenologische Arbeitsgemeinschaft Mitteleuropas

British Bryological Society

British Lichenological Society

Bryological Society of Japan

Dutch Bryological and Lichenological Society

Finnish Bryological Societ

International Association of Bryologists

International Association of Lichenologists

Sociedad Latinoamericana de Briologia

Società Lichenologica Italiana

Spanish Bryological Society

Swedish Friends of Bryophytes

Tropical Bryology Research