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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 Peristome (from the Greek ''peri'', meaning 'around' or 'about', and ''stoma'', 'mouth') is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes. In mosses In mosses, ... teeth are haplolepideous with a 4:2:3 formula, and an exostome is absent. References Plant subclasses Bryopsida {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryopsida
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. The group is distinguished by having spore capsules with teeth that are ''arthrodontous''; the teeth are separate from each other and jointed at the base where they attach to the opening of the capsule.Buck, William R. & Bernard Goffinet. (2000) "Morphology and classification of mosses", pages 71-123 ''in'' A. Jonathan Shaw & Bernard Goffinet (Eds.), ''Bryophyte Biology''. (Cambridge: Cambridge University Press). Consequently, mosses in the Class Bryopsida are commonly known as the “joint-toothed” or “arthrodontous” mosses. These teeth are exposed when the covering operculum falls off. In other groups of mosses, the capsule is either ''nematodontous'' with an attached operculum, or else splits open without operculum or teeth. Morphological groups The Bryopsida can be simplified into three groups: the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catoscopiaceae
''Catoscopium'' is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Catoscopiaceae . Taxonomy The family Catoscopiaceae has traditionally been considered part order Bryales. However, phylogenetic analyses have found ''Catoscopium'' to be the earliest branching group 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 Peristome (from the Greek ''peri'', meaning 'around' or 'about', ..., as part of a grade of protohaplolepidous lineages. Catoscopiaceae are not currently assigned to an order. Species The genus contains the following species: *'' Catoscopium martianum'' *'' Catoscopium nigritum'' References Moss families Bryopsida {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timmiellaceae
Timmiellaceae is a family of haplolepideous mosses (Dicranidae). It contains two genera, '' Luisierella'' and '' Timmiella'', that were formerly place in family Pottiaceae. Taxonomy The genera ''Luisierella'' and ''Timmiella'' have been traditionally placed in family Pottiaceae in order Pottiales. However, phylogenetic analyses have found these genera to form a clade, as 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 Peristome (from the Greek ''peri'', meaning 'around' or 'about' ..., for which the family Timmiellaceae was erected. The family is not currently assigned to an order, although it may be sister to family Distichiaceae. Genera and species The family contains the following genera and species: *'' Luisierella'' **'' Luisierella barbula'' **'' Luisi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Distichiaceae
''Distichium'' is a genus of haplolepideous mosses (Dicranidae) in the monotypic family Distichiaceae. Taxonomy The genus ''Distichium'' has traditionally been considered part of family Ditrichaceae. 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 Peristome (from the Greek ''peri'', meaning 'around' or 'about', .... Based on these studies ''Distichium'' was restored to Distichiaceae, where it was originally placed by Schimper (1860). Species The genus contains the following species: *'' Distichium asperrimum'' *'' Distichium austroinclinatum'' *'' Distichium brachyphyllum'' *'' Distichium brachystegium'' *'' Distichium brevifolium'' *'' Distichium brevisetum'' *'' Dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flexitrichaceae
''Flexitrichum'' is a genus of haplolepideous mosses (Dicranidae) in the family Flexitrichaceae. Species The genus contains two species: *'' Flexitrichum flexicaule'' *'' Flexitrichum gracile'' These species were previously considered members of the genus '' Ditrichum'' in the family Ditrichaceae Ditrichaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales. Genera The family Ditrichaceae contains over twenty genera: *'' Astomiopsis'' *'' Bryomanginia'' *'' Ceratodon'' *'' Cheilothela'' *'' Cladastomum ..., either as two species or both included in ''Ditrichum flexicaule''. References Bryopsida Moss genera Taxonomy articles created by Polbot {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudoditrichales
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 Ditrichaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales. Genera The family Ditrichaceae contains over twenty genera: *'' Astomiopsis'' *'' Bryomanginia'' *'' Ceratodon'' *'' Cheilothela'' *'' Cladastomum .... References Moss orders Bryopsida {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scouleriales
Scouleriales 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 spores; the peristome Peristome (from the Greek ''peri'', meaning 'around' or 'about', .... References Moss orders Bryopsida {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grimmiales
Grimmiales is an order of mosses in the subclass Dicranidae. It comprises four families: Grimmiaceae, Ptychomitriaceae Ptychomitriaceae is a family of 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 spores; the peri ..., Seligeriaceae, and Saelaniaceae. References Moss orders {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dicranales
Dicranales 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 In biology, a spore is a unit of sexual or asexual reproduction that may .... References External links McGrawHill, Dicranales Moss orders {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pottiales
Pottiales is an order of mosses in the subclass Dicranidae. Classification The following families are recognised in ''Bryophyte Biology'': * Pottiaceae * Pleurophascaceae * Serpotortellaceae * Mitteniaceae Some other families are recognised by other sources: * Ephemeraceae – this putative family is characterized by highly simplified vegetative and sporogenous bodies and contains two genera, Ephemerum and '' Micromitrium''. However, phylogenetic analysis finds it polyphyletic, with ''Ephemerum'' nested in Pottiaceae and ''Micromitrium'' recovered among the Dicranales, closely related to the Leucobryaceae, and assigned a new family, Micromitriaceae. * Hypodontiaceae – family containing the genus '' Hypodontium''. Alternatively placed in Dicranales Dicranales 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristome
Peristome (from the Greek ''peri'', meaning 'around' or 'about', and ''stoma'', 'mouth') is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes. In mosses In mosses, the peristome is a specialized structure in the sporangium that allows for gradual spore discharge, instead of releasing them all at once. Most mosses produce a capsule with a lid (the operculum) which falls off when the spores inside are mature and thus ready to be dispersed. The opening thus revealed is called the ''stoma'' (meaning "mouth") and is surrounded by one or two peristomes. Each peristome is a ring of triangular "teeth" formed from the remnants of dead cells with thickened cell walls. There are usually 16 such teeth in a single peristome, separate from each other and able to both fold in to cover the stoma as well as fold back to open the stoma. This articulation of the teeth is termed arthrodontous and is found in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peristome
Peristome (from the Greek ''peri'', meaning 'around' or 'about', and ''stoma'', 'mouth') is an anatomical feature that surrounds an opening to an organ or structure. Some plants, fungi, and shelled gastropods have peristomes. In mosses In mosses, the peristome is a specialized structure in the sporangium that allows for gradual spore discharge, instead of releasing them all at once. Most mosses produce a capsule with a lid (the operculum) which falls off when the spores inside are mature and thus ready to be dispersed. The opening thus revealed is called the ''stoma'' (meaning "mouth") and is surrounded by one or two peristomes. Each peristome is a ring of triangular "teeth" formed from the remnants of dead cells with thickened cell walls. There are usually 16 such teeth in a single peristome, separate from each other and able to both fold in to cover the stoma as well as fold back to open the stoma. This articulation of the teeth is termed arthrodontous and is found in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
