Hypnaceae

Hypnaceae is a large family of moss with broad worldwide occurrence in the class Bryopsida, subclass Bryidae and order Hypnales. Genera include Hypnum, Phyllodon, and Taxiphyllum.

Ecology
Some of the family species occur on the floor of Canadian boreal forests; an example of this occurrence is within the black spruce/feathermoss climax forest, often having moderately dense canopy and featuring a forest floor of feathermosses including, Hylocomium splendens, Pleurozium schreberi and Ptilium crista-castrensis.

Classification
The family Hypanaceae includes the following genera:


 * Acritodon H. Rob.
 * Austrohondaella Z.Iwats., H.P.Ramsay & Fife
 * Bryosedgwickia Tosco & Piovano
 * Chryso-hypnum Hampe
 * Crepidophyllum Herzog
 * Ctenidiadelphus M. Fleisch.
 * Cyathothecium Dixon
 * Dacryophyllum Ireland
 * Ectropotheciella M. Fleisch.
 * Ectropotheciopsis (Broth.) M. Fleisch.
 * Ectropothecium Mitt.
 * Elharveya H.A. Crum
 * Elmeriobryum Broth.
 * Entodontella Broth. ex M. Fleisch.
 * Eurohypnum Ando
 * Foreauella Dixon & P. de la Varde
 * Glossadelphus M. Fleisch.
 * Gollania Broth.
 * Hypnum Hedw.
 * Irelandia W. R. Buck
 * Karstia B.H. Allen
 * Leiodontium Broth.
 * Leptoischyrodon Dixon
 * Macrothamniella M. Fleisch.
 * Mahua W.R. Buck
 * Microctenidium M. Fleisch.
 * Microthamnium A. Jaeger
 * Mittenothamnium Henn.
 * Nanothecium Dixon & P. de la Varde
 * Neoptychophyllum S. He
 * Plagiotheciopsis Broth.
 * Platygyriella Cardot
 * Podperaea Z. Iwats. & Glime
 * Pseudohypnella (Broth.) M. Fleisch.
 * Rhacopilopsis Renauld & Cardot
 * Rhizohypnella M. Fleisch.
 * Sclerohypnum Dixon
 * Stenotheciopsis Broth.
 * Stereodontopsis R. S. Williams
 * Syringothecium Mitt.
 * Taxiphyllopsis Higuchi & Deguchi
 * Vesicularia (Müll. Hal.) Müll. Hal.
 * Wijkiella Bizot & Lewinsky

Formerly included

 * Acosta (Schwägr.) Müll. Hal. – synonym of Sematophyllum
 * Allorgea (Mont.) Ando – synonym of Andoa
 * Andoa Ochyra – now in Myuriaceae
 * Breidleria Loeske – synonym of Stereodon
 * Bryocrumia L. E. Anderson – now in Symphyodontaceae
 * Buckiella Ireland – synonym of Plagiothecium
 * Callicladium H. Crum – now in Callicladiaceae
 * Campylophyllum (Schimp.) M. Fleisch. – now in Amblystegiaceae
 * Caribaeohypnum Ando & Higuchi – now in Taxiphyllaceae
 * Ctenidium (Schimp.) Mitt. – now in Myuriaceae
 * Cupressina (Mitt.) Müll. Hal. – synonym of Hypnum
 * Dolichotheca (Broth.) Broth. – synonym of Herzogiella
 * Drepanium  G. Roth – now in Amblystegiaceae
 * Filibryum W. Kim & T. Yamag. – now in Taxiphyllaceae
 * Giraldiella Müll. Hal. – synonym of Pylaisia
 * Herzogiella Broth. – now in Plagiotheciaceae
 * Homomallium (Schimp.) Loeske – now in Pylaisiaceae
 * Hondaella Dixon & Sakurai – now in Taxiphyllaceae
 * Hyocomium Bruch & Schimp. – now in Myuriaceae
 * Isopterygium Mitt. – now in Pylaisiadelphaceae
 * Orthotheciadelphus Dixon – synonym of Orthothecium
 * Orthothecium Schimp. – now in Plagiotheciaceae
 * Phyllodon Bruch & Schimp. – now in Symphyodontaceae
 * Platygyrium Schimp. – now in Pylaisiadelphaceae
 * Ptilium De Not. – now in Pylaisiaceae
 * Puiggariella Broth. – synonym of Puiggariopsis
 * Puiggariopsis M. Menzel – now in Hylocomiaceae
 * Pylaisia Schimp. – now in Pylaisiaceae
 * Pylaisaea Müll. Hal. – synonym of Pylaisia
 * Rhizohypnum Herzog – synonym of Mittenothamnium
 * Taxiphyllum M. Fleisch. – now in Taxiphyllaceae
 * Trachythecium M. Fleisch. – now in Symphyodontaceae
 * Tutigaea – synonym of Hondaella