Distichium Brevisetum
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''Distichium'' is a
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of haplolepideous
moss Mosses are small, non-vascular plant, non-vascular flowerless plants in the taxonomic phylum, division Bryophyta (, ) ''sensu stricto''. Bryophyta (''sensu lato'', Wilhelm Philippe Schimper, Schimp. 1879) may also refer to the parent group bryo ...
es (
Dicranidae The Dicranidae are a widespread and diverse subclass of mosses in class Bryopsida, with many species of dry or disturbed areas. They are distinguished by their spores; the peristome teeth are haplolepideous with a 4:2:3 formula, and an exostome ...
) in the monotypic
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Distichiaceae.


Taxonomy

The genus ''Distichium'' has traditionally been considered part of family
Ditrichaceae Ditrichaceae is a family of haplolepideous mosses in subclass Dicranidae. The family was previously place in order Dicranales Dicranales is an order of haplolepideous mosses in the subclass Dicranidae The Dicranidae are a widespread and d ...
. However, phylogenetic analyses have found Ditrichaceae to be polyphyletic and ''Distichium'' part of a protohaplolepidous grade of early branching lineages in
Dicranidae The Dicranidae are a widespread and diverse subclass of mosses in class Bryopsida, with many species of dry or disturbed areas. They are distinguished by their spores; the peristome teeth are haplolepideous with a 4:2:3 formula, and an exostome ...
. Based on these studies ''Distichium'' was restored to Distichiaceae, where it was originally placed by Schimper (1860). The family is now placed in order
Distichiales Distichiales is an order of haplolepideous mosses in the subclass Dicranidae The Dicranidae are a widespread and diverse subclass of mosses in class Bryopsida, with many species of dry or disturbed areas. They are distinguished by their spore ...
along with family
Timmiellaceae Timmiellaceae is a family (biology), family of Peristome#In mosses, haplolepideous mosses (Dicranidae). It contains two genera, ''Luisierella'' and ''Timmiella'', that were formerly place in family Pottiaceae. Taxonomy The genera ''Luisierella' ...
.


Species

The genus contains the following species: *'' Distichium asperrimum'' *'' Distichium austroinclinatum'' *'' Distichium brachyphyllum'' *'' Distichium brachystegium'' *'' Distichium brevifolium'' *'' Distichium brevisetum'' *'' Distichium bryoxiphioidium'' *'' Distichium capillaceum'' *'' Distichium crispatum'' *'' Distichium hagenii'' *'' Distichium inclinatum'' *'' Distichium lorentzii'' *'' Distichium remotifolium'' *'' Distichium setifolium'' *'' Distichium strictifolium'' *'' Distichium vernicosum''


References

Moss genera Dicranidae {{Bryopsida-stub