Sphaerocarpales is an order of plants within the

liverwort 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 ...

s. Approximately twenty

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 ...

are in this order which is sub-divided into four

families 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. Ideal ...

: Monocarpaceae, Sphaerocarpaceae and

Riellaceae Sphaerocarpales is an order of plants within the liverworts. Approximately twenty species are in this order which is sub-divided into four families: Monocarpaceae, Sphaerocarpaceae and Riellaceae, as well as the extinct family Naiaditaceae. ...

, as well as the extinct family Naiaditaceae. The inclusion of the Naiaditaceae is uncertain, and the family has sometimes been assigned to the Calobryales.

Classification

Living taxa and species count based on Söderström et al. 2016 and synonyms from ''Collection of genus-group names in a systematic arrangement''. * Monocarpaceae D.J.Carr ex Schelpe 1969 ** '' Monocarpus '' D.J.Carr 1956 non Post & Kuntze 1903 'Carrpos'' Proskauer 1961 *

Engl. 1892 ** '' Austroriella'' Cargill & J.Milne2013 ** ''

Riella ''Riella'' is a genus in the liverwort family Riellaceae, and includes about eighteen species. Plants in the genus are small and grow submerged in shallow temporary pools. Although the genus is widely distributed in the Northern Hemisphere, loca ...

'' Mont. 1852 'Duriaea'' Bory De St. Vincent & Montagne 1843 non Durieua Merat 1829; ''Maisonneuvea'' Trevisan 1877; ''Duriella'' Bory de St. Vincent ex Billot 1861(about 18 spp.) * Sphaerocarpaceae Heeg 1891 ** '' Geothallus'' Campb. 1896 'Geocarpus'' Goebel 1915 non Kinkelin 1884(1 species) ** '' Sphaerocarpos'' Boehm. 1760 non Gmelin 1791 'Sphaerocarpus'' (sic) Adanson 1763(8 or 9 spp.) * † Naiaditaceae Schuster 1980 nominum invalidum ** †'' Naiadita lanceolata'' Brodie 1845

References

External links

* * Liverwort orders {{Bryophyte-stub