According to other views the Moose than part of the class Lebermoose ( Marchantiopsida in the broader sense), belonging here, is treated and to carry then on the status of a subclass the name Jungermanniidae.
The majority of the Jungermanniopsida, i.e. the kinds of the orders Jungermanniales and Calobryales are “folios” built, thus arranged into Stämmchen and lamellas. The lamellas without central rib sit laterally in two rows. With many kinds also still another third set of lamellas at the lower surface of the Stämmchens is present.
On the other hand the kinds of the Metzgeriales are thallos” built “. Their Thallus is however more simply built than with the Marchantiopsida. It possesses neither Luftkammern nor breath pores and is only few cell layers thick. A central strip is usually more thickly than the edge, with some kinds, approximately with the kind Metzgeria is present a sharply defined central rib. At the edge the Thallus is with some kinds, approximately with Fossombronia, lapped, which makes then the impression, as if would be two rows of lamellas available.
In oil body from Terpenen, which lend a typical smell to them, is to nearly all fabrics of the Jungermanniopsida.
The Gametangien stands individually and is not summarized not in Gametangienständen.
The Sporophyt consists of a Sporenkapsel, which is raised by a long handle (Seta). The Sporenkapsel opens lengthwise in 4 flaps.