Blasiales is an order 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 ...

with a single living

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 ...

and two

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

. The order has traditionally been classified among the

Metzgeriales Metzgeriales is an order of liverworts. The group is sometimes called the simple thalloid liverworts: " thalloid" because the members lack structures resembling stems or leaves, and "simple" because their tissues are thin and relatively undiff ...

, but molecular cladistics suggests a placement at the base of the

Marchantiopsida Marchantiopsida is a class of liverworts within the phylum Marchantiophyta. The species in this class are known as complex thalloid liverworts. The species in this class are widely distributed and can be found worldwide. Complex oil bodies are on ...

Taxonomy

* Blasiales Stotler & Crandall-Stotler 2000 **

Blasiaceae Blasiaceae is a family of liverworts with only two species: '' Blasia pusilla'' (a circumboreal species) and '' Cavicularia densa'' (found only in Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northe ...

von Klinggräff 1858 *** ''

Blasia ''Blasia pusilla'' is the only species in the liverwort genus ''Blasia''. This species establishes a symbiosis with nitrogen-fixing cyanobacteria of the genus ''Nostoc'', which are housed in special cavities, called auricles, occurring on the ven ...

'' Linnaeus 1753 **** ''Blasia pusilla'' Linnaeus 1753 *** ''

Cavicularia ''Cavicularia densa'' is the only species in the liverwort genus ''Cavicularia''. The species was first described in 1897 by Franz Stephani, and is endemic to Japan, where it grows on fine moist soil. Plants are thalloid and flattened, with di ...

'' Stephani 1897 non Pavesi 1881 **** ''Cavicularia densa'' Stephani 1897 ** †

Treubiitaceae ''Treubiites kidstonii'' is a fossil species of liverworts in the family Treubiitaceae. The only known fossils come from Late Carboniferous deposits of Shropshire, England England is a Countries of the United Kingdom, country that is pa ...

Schuster 1980 *** †''

Treubiites ''Treubiites kidstonii'' is a fossil species of liverworts in the family Treubiitaceae. The only known fossils come from Late Carboniferous deposits of Shropshire, England England is a Countries of the United Kingdom, country that is pa ...

'' Schuster 1966 **** †''Treubiites kidstonii'' (Walton 1925) Schuster 1966

References

External links

Liverwort Tree of Life

Liverwort orders {{Bryophyte-stub