Formerly published as Beihefte zur Nova Hedwigia (ISSN: 0078-2238). Nova Hedwigia Beihefte is the supplement series of the journal Nova Hedwigia, containing monographs on taxonomy, morphology, ultrastructure and ecology of all groups of cryptogamic plants (including cyanophytes/cyanobacteria and fungi). All currently available volumes can be purchased from NHBS, and a Standing Order service is offered for future volumes.