''Preissia'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
liverworts
The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of ge ...
in the
order
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
Marchantiales. It is a member of
family
Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...
Marchantiaceae
Marchantiaceae is a family of liverworts in order Marchantiales. It contains a single genus ''Marchantia''.
Genera in Marchantiaceae
Until recently, three genera were included in the Marchantiaceae:
* '' Bucegia'' Radian 1903
* ''Marchantia'' ...
within that order. This genus has a worldwide distribution.
Species in ''Preissia''
* ''
Preissia quadrata'', (''P. commutata'')
References
External links
Description and photos of ''Preissia quadrata'' Diagrams and photo of ''Preissia quadrata''
Marchantiales
Marchantiales genera
{{Bryophyte-stub