''Allisonia cockaynei'' is the only species 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 ...
in the genus ''Allisonia''
and family Allisoniaceae. It is
endemic
Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...
to
New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
.
The genus ''
Calycularia'', formerly included within the Allisoniaceae, is now classified in its own family
Calyculariaceae
''Calycularia'' is the only genus of liverwort in the family Calyculariaceae. It was formerly included within the Allisoniaceae
''Allisonia cockaynei'' is the only species of liverwort in the genus ''Allisonia'' and family Allisoniaceae. It i ...
.
Allisoniaceae is one of only two liverwort families endemic to
New Zealand
New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...
, the other being
Jubulopsidaceae. There are no moss or hornwort families endemic to New Zealand.
[Mosses, Liverworts, and Hornworts. Compiled by Tomas Hallingbäck and Nick Hodgett]
/ref>
References
Fossombroniales
Monotypic bryophyte genera
Flora of New Zealand
Liverwort genera
{{Bryophyte-stub