The Pottiaceae are a family of mosses. They form the most numerous moss family known, containing nearly 1500 species or more than 10% of the 10,000 to 15,000 moss species known.
Genera
The family has four subfamilies and 83 genera.
Subfamily Trichostomoideae
Bryoceuthospora
Calymperastrum
Calyptopogon
Chionoloma
Eucladium
Leptobarbula
Neophoenix
Pachyneuropsis
Pleurochaete
Pottiopsis
Pseudosymblepharis
Quaesticula
Streptocalypta
Tetracoscinodon
Tetrapterum
Tortella Lindb. Trachycarpidium Trichostomum Oxystegus Tuerckheima Broth. Uleobryum Weissia Weissiodicranum Subfamily Barbuloideae Anoectangium Barbula Bellibarbula Bryoerythrophyllum Cinclidotus Dialytrichia Didymodon (e.g. Didymodon tomaculosus) Erythrophyllopsis Ganguleea Gertrudiella Gymnostomum Gymnostomiella Gyroweisia Hymenostyliella Hymenostylium Hyophila Hyophiladelphus Koponobryum Leptodontiella Leptodontium Luisierella Mironia Molendoa Plaubelia Pseudocrossidium Reimersia Rhexophyllum Sarconeurum (e.g. Sarconeurum glaciale) Splachnobryum Streptotrichum Teniolophora Trachyodontium Triquetrella Weisiopsis Subfamily Pottioideae Acaulon Aloina Aloinella Cardot Chenia Crossidium Crumia Dolotortula Globulinella Hennediella Hilpertia Ludorugbya Microbryum Microcrossidium Phascopsis Pterygoneurum Sagenotortula Saitobryum Stegonia Stonea R. H. Zander Streptopogon Syntrichia Tortula Willia Subfamily Merceyoideae Scopelophila
The GBIF also lists Morinia , Saitoa, Sebillea , and Spruceella but with no subfamily details.
Subfamily Timmielloideae (and its two genera of Timmiella and Luisierella) have been transferred to a new family Timmiellaceae, due to molecular phylogenetic analysis in 2014.