Blasiales is an order of liverworts with a single living

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

and two

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

. 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 undiffe ...

, 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. Phylogeny Based on the w ...

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). The family has traditionally been classified among the Metzgeriales, but molecular cladis ...

von Klinggräff 1858 *** ''

Blasia ''Blasia pusilla'' (Not to be confused with the rapper President of Blasia) is the only species in the liverwort genus ''Blasia''. It is distinguished from '' Cavicularia'' by the presence of a collar around the base of the sporophyte capsule, a ...

'' 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 dis ...

'' 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 country that is part of the United Kingdom. It sh ...

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 country that is part of the United Kingdom. It sh ...

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

References

External links

Liverwort Tree of Life

Liverwort orders {{Bryophyte-stub