The family of the Jungermanniales containing the genera Acromastigum, Arachniopsis, Bazzania, Chloranthelia, Drucella, Hygrolembidium, Isolembidium, Kurzia, Lembidium, Lepidozia, Mastigopelma, Megalembidium, Micropterygium, Mytilopsis, Neogrollea, Odontoseries, Paracromastgum, Protochephalozia, Pseudocephalozia, Psiloclada, Pteropsiella, Sprucella, Telaranea, Zoopsidella, Zoopsis.