| Hedwigiales | |
|---|---|
 | |
| Hedwigia ciliata | |
Scientific classification  | |
| Kingdom: | Plantae |
| Division: | Bryophyta |
| Class: | Bryopsida |
| Subclass: | Bryidae |
| Superorder: | Bryanae |
| Order: | Hedwigiales Ochyra |
| Families | |
See Classification | |
Hedwigiales is an order of mosses. [1] It is named after Johannes Hedwig (1730-1799), the founder of modern bryology.
They are a medium to large size acrocarpous moss with irregular branching. A midrib is not normally present in the leaves. [2]
There are three families placed in the Hedwigiales. [2]
Takakia is a genus of two species of mosses known from western North America and central and eastern Asia. The genus is placed as a separate family, order and class among the mosses. It has had a history of uncertain placement, but the discovery of sporophytes clearly of the moss-type firmly supports placement with the mosses.
Andreaeaceae is a family of mosses which includes two genera, Andreaea, containing about 100 species, and the genus Acroschisma. The Andreaeaceae prefer rocky habitats ranging from tropical to arctic climates, on which they form tufted colonies, typically with reddish to blackish shoots. The capsules lack the peristome mechanism and dehisce longitudinally to release the spores, resulting in a paper-lantern appearance.
The Bryopsida constitute the largest class of mosses, containing 95% of all moss species. It consists of approximately 11,500 species, common throughout the whole world.
Buxbaumia is a genus of twelve species of moss (Bryophyta). It was first named in 1742 by Albrecht von Haller and later brought into modern botanical nomenclature in 1801 by Johann Hedwig to commemorate Johann Christian Buxbaum, a German physician and botanist who discovered the moss in 1712 at the mouth of the Volga River. The moss is microscopic for most of its existence, and plants are noticeable only after they begin to produce their reproductive structures. The asymmetrical spore capsule has a distinctive shape and structure, some features of which appear to be transitional from those in primitive mosses to most modern mosses.
Bryidae is an important subclass of Bryopsida. It is common throughout the whole world. Members have a double peristome with alternating tooth segments.
Grimmiales is an order of mosses in the subclass Dicranidae. It comprises four families: Grimmiaceae, Ptychomitriaceae, Seligeriaceae, and Saelaniaceae.
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 photosynthetic 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.
Pottiales is an order of mosses in the subclass Dicranidae.
Andreaeobryum, the Mossy Cowl Moss, is a genus of moss with a single species Andreaeobryum macrosporum, endemic to Alaska and western Canada. The genus is placed as a separate family, order and class among the mosses.
Oedipodium is the only genus of moss in the family Oedipodiaceae. It contains the single species Oedipodium griffithianum, the gouty-moss or Griffith's oedipodium moss. This species is distributed in cooler climates of Eurasia, as well as from Alaska, Washington state, British Columbia, Yukon, Greenland, Newfoundland, Tierra del Fuego and the Falkland Islands.
Bryales is an order of mosses.
Gigaspermaceae are a family of mosses in the monotypic order Gigaspermales. The order is placed in subclass Gigaspermidae of the class Bryopsida. They were previously placed in subclass Funariidae.
Encalyptales is an order of mosses in subclass Funariidae. It contains a single family.
Timmia is a genus of moss. It is the only genus in the family Timmiaceae and order Timmiales. The genus is named in honor of the 18th-century German botanist Joachim Christian Timm.
Bryaceae is a family of mosses.
Pseudoditrichum is a rare North American genus of haplolepideous moss (Dicranidae). It is the only known genus in its family (Pseudoditrichaceae), and there is only one species in the genus. Pseudoditrichum mirabile has been found only in a small area along the Sloan River near Great Bear Lake. This is in the Northwest Territory in northern Canada, only a few kilometers south of the Arctic Circle.
Amblytropis is a genus of moss in family Pilotrichaceae.
Bartramiales is an order of moss.
Drummondia is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Drummondiaceae.
William Russel Buck is an American bryologist.
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