Peristome is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes.
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.
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 the larger species occurring in particularly moist habitats. The leaves have specialized sheaths at the base and a midrib that bears photosynthetic lamellae on the upper surface. These mosses are capable of sustaining high rates of photosynthesis in the presence of ample light and moisture. Unlike all other mosses, the hydroid-based vascular system of these mosses is continuous from stem to leaf and can extract water from the soil through transpiration. Species in this group are dioicous, though some are monoicous. In most species, the sporophytes are relatively large, the setae are rigid, and the calyptrae are hairy. Most species have nematodontous peristomes with 32–64 teeth in their sporangium; some early-diverging genera instead have a stopper mechanism, which consists of the apical section of the columella, that seals the mouth of the capsule shut prior to dehiscence.
The Funariidae are a widespread group of mosses in class Bryopsida. The majority of species belong to the genera Funaria and Physcomitrium.
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 is absent.
Tetraphidaceae is a family of mosses. It includes only the two genera Tetraphis and Tetrodontium, each with two species. The defining feature of the family is the 4-toothed peristome.
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.
Ptychomitriaceae is a family of mosses in the subclass Dicranidae.
Pseudoditrichales is an order of haplolepideous mosses in the subclass Dicranidae. It comprises two families, Pseudoditrichaceae and Chrysoblastellaceae. Pseudoditrichaceae was previously placed in Bryales, while Chrysoblastellaceae is a new family erected for Chrysoblastella, which was previously placed in Ditrichaceae.
Rhabdoweisiaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales. It consists of 16 genera.
Flexitrichum is a genus of haplolepideous mosses (Dicranidae) in the family Flexitrichaceae.
Distichium is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Distichiaceae.
Timmiellaceae is a family of haplolepideous mosses (Dicranidae). It contains two genera, Luisierella and Timmiella, that were formerly place in family Pottiaceae.
Catoscopium is a genus of haplolepidous mosses (Dicranidae) in the monotypic family Catoscopiaceae .
Saelania is a genus of mosses in the monotypic family Saelaniaceae in subclass Dicranidae. The genus was previously placed in family Ditrichaceae. Saelania is named after Finnish botanist Thiodolf Saelan.
Wijkia extenuata, commonly known as spear moss or spiky wiki, is a species of moss from the family Pylaisiadelphaceae. It can be divided into two varieties Wijkia extenuata '-var. caudata and Wijkia extenuata var. extenuata. It is commonly found throughout the tropical, subtropical, and temperate forests of eastern Australasia and New Zealand.
