''Treubia'' is a
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
liverworts
Liverworts are a group of non-vascular plant, non-vascular embryophyte, 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 wh ...
in the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Treubiaceae.
[Crandall-Stotler, Barbara. & Stotler, Raymond E. (2000). "Morphology and classification of the Marchantiophyta". pages 21–70 ''in'' A. Jonathan Shaw & Bernard Goffinet (eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press). ] There are seven species,
all of which are restricted to the southern hemisphere. Five of the species occur in
Australasia
Australasia is a subregion of Oceania, comprising Australia, New Zealand (overlapping with Polynesia), and sometimes including New Guinea and surrounding islands (overlapping with Melanesia). The term is used in a number of different context ...
and the other (''
Treubia scapanioides'') occurs in
Chile
Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...
. All species are
dioicous
Dioicy () is a sexual system in non-vascular plants where archegonia (female organs) and antheridia (male organs) are produced on separate plants in the gametophyte phase. It is one of the two main sexual systems in bryophytes, the other being ...
, with separate male and female
gametophyte
A gametophyte () is one of the two alternating multicellular phases in the life cycles of plants and algae. It is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes. The gametophyte is the se ...
s.
Classification
Species list:
* ''
Treubia insignis''
K.I.Goebel
* ''
Treubia lacunosa''
(Colenso) Prosk.
* ''
Treubia lacunosoides''
T.Pfeiff., W.Frey et M.Stech
* ''
Treubia pygmaea''
R.M.Schust.
* ''
Treubia scapanioides''
R.M.Schust.
* ''
Treubia tahitensis''
(Nadeaud) Goebel ex Besch.
* ''
Treubia tasmanica''
R.M.Schust. et G.A.M.Scott
References
Treubiales
Liverwort genera
{{Bryophyte-stub