Distichium Explained

Distichium is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Distichiaceae.^{[1] [2]}

Taxonomy

The genus Distichium has traditionally been considered part of family Ditrichaceae.^[3] However, phylogenetic analyses have found Ditrichaceae to be polyphyletic and Distichium part of a protohaplolepidous grade of early branching lineages in Dicranidae.^{[2] [4]} Based on these studies Distichium was restored to Distichiaceae, where it was originally placed by Schimper (1860).^[2]

Species

The genus contains the following species:^[5]

• 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

Notes and References

1. Web site: Goffinet . B. . W.R. . Buck . Classification of extant moss genera . Classification of the Bryophyta . 31 March 2020 . 8 April 2020.
2. Inoue . Yuya . Tsubota . Hiromi . On the systematic position of the genus Timmiella (Dicranidae, Bryopsida) and its allied genera, with the description of a new family Timmiellaceae . Phytotaxa . 181 . 3 . 2014 . 151 . 1179-3163 . 10.11646/phytotaxa.181.3.3 . free.
3. Book: Goffinet . B. . W. R. . Buck . A. J. . Shaw . 2008 . Morphology and Classification of the Bryophyta . 55–138 . Goffinet . B. . J. . Shaw . Bryophyte Biology . 2nd . New York . Cambridge University Press . 978-0-521-87225-6 . https://books.google.com/books?id=te0fAwAAQBAJ&pg=PT108.
4. Fedosov . Vladimir E. . Fedorova . Alina V. . Fedosov . Alexander E. . Ignatov . Michael S. . Phylogenetic inference and peristome evolution in haplolepideous mosses, focusing on Pseudoditrichaceae and Ditrichaceaes. l. . Botanical Journal of the Linnean Society . 181 . 2 . 2016 . 139–155 . 0024-4074 . 10.1111/boj.12408 . free.
5. Web site: Distichium Bruch & Schimp. . . 13 April 2020.