Polytrichaceae

Polytrichaceae
Polytrichastrum formosum
Scientific classification
Kingdom:	Plantae
Division:	Bryophyta
Class:	Polytrichopsida Doweld
Order:	Polytrichales M. Fleisch.
Family:	Polytrichaceae Schwägr.
Genera
See text.

The Polytrichaceae also known as "Aloe Moss" 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.

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

Alophosia Atrichopsis Atrichum Bartramiopsis Dawsonia

Dendroligotrichum Hebantia Itatiella Lyellia Meiotrichum

Notoligotrichum Oligotrichum Plagioracelopus Pogonatum Polytrichadelphus

Polytrichastrum Polytrichum Pseudatrichum Psilopilum Steereobryon

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.