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Leucobryaceae
	Leucobryum glaucum
Scientific classification
Kingdom:	Plantae
Division:	Bryophyta
Class:	Bryopsida
Subclass:	Dicranidae
Order:	Dicranales
Family:	Leucobryaceae; Schimp.

Leucobryaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales.^[1]^[2]

Description

Members of the family grow small to large cushions. Species are characterized by having thick, whitish leaves with a large, expanded costa.^[3] It has been suggested that the characteristic pale color exhibited by some species is caused by air bubbles in the leucocysts, and the presence of air in the leaf is assumed characteristic of the Leucobryaceae.^[4]

Classification

The Leucobryaceae have been sometimes included in the Dicranaceae because of similar costa and peristome structures.^[3]

The number of genera assigned to the family has been subject to much debate and has ranged from one to fourteen.^[3]^[5] Some genera previous assigned to Leucobryaceae have been split off into the family Calymperaceae, while molecular analyses have led to other changes, with other genera from Dicranaceae included.^[5]

The family currently includes twelve genera:^[1]^[2]

Atractylocarpus Mitt.
Brothera Müll. Hal.
Bryohumbertia P. de la Varde & Thér.
Campylopodiella Cardot
Campylopus Brid.
Cladopodanthus Dozy & Molk.
Dicranodontium Bruch & Schimp.
Leucobryum Hampe
Microcampylopus (Müll. Hal.) Fleisch.
Ochrobryum Mitt.
Pilopogon Brid.
Schistomitrium Dozy & Molk.

References

^ ^a ^b Goffinet, B.; Buck, W. R.; Shaw, A. J. (2008). "Morphology and Classification of the Bryophyta". In Goffinet, B.; Shaw, J. (eds.). Bryophyte Biology (2nd ed.). New York: Cambridge University Press. pp. 55–138. ISBN 978-0-521-87225-6.
^ ^a ^b Goffinet, B.; Buck, W.R. "Classification of extant moss genera". Classification of the Bryophyta. Retrieved 8 April 2020.
^ ^a ^b ^c "Leucobryaceae in Flora of North America". Retrieved 9 April 2020.
^ Robinson, H. 1985. The structure and significance of the leucobryaceous leaf. Monogr. Syst. Bot. Missouri Bot. Gard. 11: 111-120. Robinson, H. 1990. A functional evolution of the Leucobryaceae. Trop. Bryol. 2: 223-237. Yamaguchi, T. 1993. A revision of the genus Leucobryum (Musci) in Asia. J. Hattori Bot. Lab. 73: 1-123.
^ ^a ^b Bonfim Santos, Marina; Stech, Michael (2017). "Testing hypotheses on suprageneric relationships and morphological evolution in the Leucobryaceae (Bryophyta)". Plant Systematics and Evolution. 303 (10): 1383–1397. doi:10.1007/s00606-017-1459-y. ISSN 0378-2697.

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[Goffinet-2008-1] Goffinet, B.; Buck, W. R.; Shaw, A. J. (2008). "Morphology and Classification of the Bryophyta". In Goffinet, B.; Shaw, J. (eds.). Bryophyte Biology (2nd ed.). New York: Cambridge University Press. pp. 55–138. ISBN 978-0-521-87225-6.

[Goffinet-2020-web-2] Goffinet, B.; Buck, W.R. "Classification of extant moss genera". Classification of the Bryophyta. Retrieved 8 April 2020.

[eflora-3] "Leucobryaceae in Flora of North America". Retrieved 9 April 2020.

[4] Robinson, H. 1985. The structure and significance of the leucobryaceous leaf. Monogr. Syst. Bot. Missouri Bot. Gard. 11: 111-120. Robinson, H. 1990. A functional evolution of the Leucobryaceae. Trop. Bryol. 2: 223-237. Yamaguchi, T. 1993. A revision of the genus Leucobryum (Musci) in Asia. J. Hattori Bot. Lab. 73: 1-123.

[Bonfim_SantosStech2017-5] Bonfim Santos, Marina; Stech, Michael (2017). "Testing hypotheses on suprageneric relationships and morphological evolution in the Leucobryaceae (Bryophyta)". Plant Systematics and Evolution. 303 (10): 1383–1397. doi:10.1007/s00606-017-1459-y. ISSN 0378-2697.

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