Sphaerocarpales

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. 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] Riellaceae Engl. 1892 Austroriella Cargill & J.Milne2013 Riella 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