Arnelliaceae is a
monotypic
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
family of
liverwort
Liverworts are a group of non-vascular land plants forming the division Marchantiophyta (). They may also be referred to as hepatics. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry ...
s belonging to the order
Jungermanniales
Jungermanniales is the largest Order (biology), order of Marchantiophyta, 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 ...
. The family only contains a single genus, ''Arnellia'', which has only one known species, ''Arnellia fennica'' . which is known as the tundra liverwort.
It is only found in the northern hemisphere of the world.
The genus name of ''Arnellia'' is in honour of
Hampus Wilhelm Arnell (2 August 1848 in
Härnösand
Härnösand () is a Urban areas in Sweden, locality and the seat of Härnösand Municipality in Västernorrland County, Sweden with 25,012 inhabitants in 2023. It is called "the gate to the High Coast" because of the world heritage landscape just ...
– 1932 in
Uppsala
Uppsala ( ; ; archaically spelled ''Upsala'') is the capital of Uppsala County and the List of urban areas in Sweden by population, fourth-largest city in Sweden, after Stockholm, Gothenburg, and Malmö. It had 177,074 inhabitants in 2019.
Loc ...
), a Swedish bryologist.
References
{{Taxonbar, from1=Q693202, from2=Q13569898, from3=Q693205
Jungermanniales
Jungermanniales genera