Hugo Erich Meyer von Klinggräff

Jungermanniales is the largest order of liverworts. They are distinctive among the liverworts for having thin leaf-like flaps on either side of the stem. Most other liverworts are thalloid, with no leaves. Due to their dorsiventral organization and scale-like, overlapping leaves, the Jungermanniales are sometimes called "scale-mosses".

Gymnomitriaceae is a liverwort family in the order Jungermanniales.

Blasiaceae is a family of liverworts with only two species: Blasia pusilla (a circumboreal species) and Cavicularia densa (found only in Japan). The family has traditionally been classified among the Metzgeriales, but molecular cladistics suggests a placement at the base of the Marchantiopsida.

Aneuraceae (sometimes Riccardiaceae) is a family of thallose liverworts in the order Metzgeriales. Most species are very small with narrow, branching thalli.

Sphagnum fuscum, the rusty bogmoss or rusty peat moss, is a peat moss found commonly in Norway and Sweden, and can be found scattered across North America, the United Kingdom, and in southern to eastern Europe.

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Metzgeriaceae is a family of thallose liverworts in the order Metzgeriales. Species may be either monoicous or dioicous.

Geocalyx is a genus of liverworts, the only genus in the family Geocalycaceae of the order Jungermanniales. The genus has almost cosmopolitan distribution.

Pelliaceae is a family of liverworts which has included three genera: Pellia (in the temperate Northern Hemisphere) and Noteroclada (in the Southern Hemisphere), and Androcryphia. The three genera are easily distinguished, not only because they occur in completely separate regions of the world, but because Noteroclada has a leafy appearance, while Pellia is more clearly thallose. Androcryphia is much less common, and bears similarities to the foliose members of Jungermanniales. Noteroclada is now placed in the family Noterocladaceae. Media related to Pelliaceae at Wikimedia Commons

The family Jubulaceae is a family of liverworts. The family name is derived from the genus Jubula.

Lunularia is a genus of liverworts whose only species is Lunularia cruciata, the crescent-cup liverwort. Lunularia is either the only genus in the order Lunulariales, or may be placed in the order Marchantiales. The name, from Latin luna, moon, refers to the moon-shaped gemma cups.

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