Polytrichaceae

Polytrichaceae is a common family of mosses. Members of this family tend to be larger than other mosses with a thickened central stem and a rhizome. The leaves have a midrib that bears lamellae on the upper surface. Species in this group are dioicous. Another characteristic that identifies them is that they have from 32 to 64 peristome teeth in their sporangium.

Polytrichaceae
Polytrichum commune
Scientific classification
Kingdom: Plantae
Division: Bryophyta
Class: Polytrichopsida
Doweld
Order: Polytrichales
M. Fleisch.
Family: Polytrichaceae
Schwägr.
Genera

See text.

Classification
The phylogenetic position of the Polytrichaceae among the eight classes of mosses, based on inferences from DNA sequence data.[1][2]
 
 

Takakiopsida

 
 

Sphagnopsida

 
 
 
 

Andreaeopsida

 
 

Andreaeobryopsida

 
 
 

Oedipodiopsida

 
 
 

Tetraphidopsida

 
 

Polytrichaceae

 
 

Bryopsida

 
 
 
 
 
 

Genera
Atrichum undulatum
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References
  1. Goffinet, B.; W. R. Buck; & A. J. Shaw (2008). "Morphology and Classification of the Bryophyta". In Bernard Goffinet; A. Jonathan Shaw (eds.). Bryophyte Biology (2nd ed.). Cambridge: Cambridge University Press. pp. 55–138. ISBN 9780521872256.
  2. Goffinet, Bernard; William R. Buck (2004). "Systematics of the Bryophyta (Mosses): From molecules to a revised classification". Monographs in Systematic Botany. Molecular Systematics of Bryophytes. Missouri Botanical Garden Press. 98: 205–239. ISBN 1-930723-38-5.


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