Marchantiales
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Marchantiales
Marchantiales is an order of thallose liverworts (also known as "complex thalloid liverworts") that includes species like '' Marchantia polymorpha'', a widespread plant often found beside rivers, and '' Lunularia cruciata'', a common and often troublesome weed in moist, temperate gardens and greenhouses. As in other bryophytes, the gametophyte generation is dominant, with the sporophyte existing as a short-lived part of the life cycle, dependent upon the gametophyte. The 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 ... '' Marchantia'' is often used to typify the order, although there are also many species of '' Asterella'' and species of the genus '' Riccia'' are more numerous. The majority of genera are characterized by the presence of (a) special stalked vertical bran ...
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Conocephalum
''Conocephalum'' is a genus of complex Glossary of botanical terms#thallose, thalloid liverworts in the Order (biology), order Marchantiales and is the only extant genus in the Family (biology), family Conocephalaceae.AKIYAMA, H. (2022). Morphological and ecological diversification of Conocephalum conicum complex in Japan and Taiwan. ''Humans Nat'', ''32'', 1-45. Some species of ''Conocephalum'' are assigned to the ''Conocephalum conicum'' complex, which includes several cryptic species. ''Conocephalum'' species are large liverworts with distinct patterns on the upper thallus, giving the appearance of snakeskin. The species ''Conocephalum conicum'' is named for its cone-shaped reproductive structures, called Glossary of botanical terms#archegoniophore, archegoniophores. Common names include snakeskin liverwort, great scented liverwort and cat-tongue liverwort. Species of ''Conocephalum'' are relatively common and widely distributed throughout North America, Europe and East Asia. ...
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Marchantiophyta
Liverworts are a group of non-vascular plant, non-vascular embryophyte, land plants forming the division Marchantiophyta (). They may also be referred to as hepatics. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information. The division name was derived from the genus name ''Marchantia'', named after his father by French botanist Jean Marchant. It is estimated that there are about 9000 species of liverworts. Some of the more familiar species grow as a flattened leafless thallus, but most species are leafy with a form very much like a flattened moss. Leafy species can be distinguished from the apparently similar mosses on the basis of a number of features, including their single-celled rhizoids. Leafy liverworts also differ from most (but not all) mosses in that their leaves never have a costa (botany), costa (present in many mosses) and may bear marginal cilia (botany), cilia (very rare i ...
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Conocephalaceae
''Conocephalum'' is a genus of complex thalloid liverworts in the order Marchantiales and is the only extant genus in the family Conocephalaceae.AKIYAMA, H. (2022). Morphological and ecological diversification of Conocephalum conicum complex in Japan and Taiwan. ''Humans Nat'', ''32'', 1-45. Some species of ''Conocephalum'' are assigned to the ''Conocephalum conicum'' complex, which includes several cryptic species. ''Conocephalum'' species are large liverworts with distinct patterns on the upper thallus, giving the appearance of snakeskin. The species ''Conocephalum conicum'' is named for its cone-shaped reproductive structures, called archegoniophores. Common names include snakeskin liverwort, great scented liverwort and cat-tongue liverwort. Species of ''Conocephalum'' are relatively common and widely distributed throughout North America, Europe and East Asia. ''Conocephalum'' often occurs in moist and shaded habitats and are also found in open woodlands, sandy banks, wet ro ...
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Marchantia
''Marchantia'' is a genus of liverworts in the family Marchantiaceae and the order Marchantiales. The genus was named by French botanist Jean Marchant after his father. The thallus of ''Marchantia'' shows differentiation into two layers: an upper photosynthetic layer with a well-defined upper epidermis with pores and a lower storage layer. The thallus features tiny cup-like structures called gemma cups, containing gemmae, small packets of tissue that are used for asexual reproduction. The combination of barrel-shaped pores and the circular shape of the gemma cups are diagnostic of the genus. Multicellular purple colored scales with single cell thickness and unicellular rhizoids are present on the ventral surface of the thallus. Reproduction ''Marchantia'' can reproduce both sexually and asexually. Sexual reproduction involves sperm from antheridia on the male plant fertilizing an ovum (egg cell) in the archegonium of a female plant. The antheridia and archegonia are ...
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Clevea
''Clevea'' is a genus of liverworts belonging to the family Cleveaceae. The genus was first described by Sextus Otto Lindberg in 1869. The genus has almost cosmopolitan distribution In biogeography, a cosmopolitan distribution is the range of a taxon that extends across most or all of the surface of the Earth, in appropriate habitats; most cosmopolitan species are known to be highly adaptable to a range of climatic and en .... Species: * '' Clevea hyalina'' (Sommerf.) Lindb. References Marchantiales Marchantiales genera {{Bryophyte-stub ...
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Marchantiaceae
Marchantiaceae is a family of liverworts in order Marchantiales. It contains a single genus ''Marchantia''. Genera in Marchantiaceae Until recently, three genera were included in the Marchantiaceae: * '' Bucegia'' Radian 1903 * ''Marchantia'' Linnaeus 1753 * '' Preissia'' Corda 1829 non Opiz 1852 However, the genera ''Bucegia'' and ''Preissia'' have since been merged into ''Marchantia'', leaving only the single genus in the family.Long, David G., Laura L. Forrest, Juan Carlos Villarreal, Barbara J. Crandall-Stotler. 2016. "Taxonomic changes in Marchantiaceae, Corsiniaceae and Cleveaceae (Marchantiidae, Marchantiophyta)". ''Phytotaxa'' 252 (1): 077–080. A number of additional genera have been moved to other families: * '' Asterella'', now in family Aytoniaceae * ''Conocephalum'', now in family Conocephalaceae ''Conocephalum'' is a genus of complex thalloid liverworts in the order Marchantiales and is the only extant genus in the family Conocephalaceae.AKIYAMA, H. (2022) ...
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Riccia
''Riccia'' is a genus of liverworts in the order Marchantiales. Description These plants are small and thalloid, i.e. not differentiated into root, stem and leaf. Depending on species, the thallus may be strap-shaped and about 0.5 to 4 mm wide with dichotomous branches or may form rosettes or hemirosettes up to 3 cm in diameter, that may be gregarious and form intricate mats. The thallus is dorsiventrally differentiated. Its upper (dorsal) surface is green and chlorophyll-bearing, with a mid-dorsal longitudinal sulcus (furrow or groove). Air pores occasionally break through the dorsal surface, giving the thallus a dimpled appearance. In exceptional members such as ''Riccia caroliniana'' of Northern Australia and ''Riccia sahyadrica'' of Western Ghats, the photosynthetic region is confined to the lower half of the thallus. The lower (ventral) surface has a mid-ventral ridge bearing multicellular scales that originate as a single row but normally separate into two ...
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Aitchisoniella
''Aitchisoniella himalayensis'' is a species of liverwort in the family Exormothecaceae. Its natural habitats are rocky areas and cold desert of Sichuan and Himachal Pradesh. It is threatened by habitat loss Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease .... References Marchantiales Marchantiales genera Endangered plants Flora of Sichuan Flora of West Himalaya Monotypic bryophyte genera Taxonomy articles created by Polbot {{Bryophyte-stub ...
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Cleveaceae
Cleveaceae is a family of liverworts belonging to the order Marchantiales. Genera: * '' Athalamia'' Falc. * ''Clevea ''Clevea'' is a genus of liverworts belonging to the family Cleveaceae. The genus was first described by Sextus Otto Lindberg in 1869. The genus has almost cosmopolitan distribution In biogeography, a cosmopolitan distribution is the ra ...'' Lindb. * '' Peltolepis'' Lindb. * '' Sauteria'' Nees References {{Taxonbar, from=Q17276581 Marchantiales Liverwort families ...
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Sauteria
''Sauteria'' is a genus of liverwort in the family Cleveaceae Cleveaceae is a family of liverworts belonging to the order Marchantiales. Genera: * '' Athalamia'' Falc. * ''Clevea ''Clevea'' is a genus of liverworts belonging to the family Cleveaceae. The genus was first described by Sextus Otto Lindb .... It contains the following species: * '' Sauteria alpina'' (Nees & Bisch.) Nees * '' Sauteria berteroana'' Mont. nresolved* '' Sauteria chilensis'' (Lindenb. ex Mont.) Grolle * '' Sauteria grandis'' S.O. Lindberg nresolved* '' Sauteria inflata'' C. Gao & G.C. Zhang * '' Sauteria japonica'' (Shimizu & S. Hatt.) S. Hatt. * '' Sauteria spongiosa'' (Kashyap) S. Hatt. * '' Sauteria yatsuensis'' S. Hatt. References Marchantiales Marchantiales genera Taxonomy articles created by Polbot {{bryophyte-stub ...
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Monocleaceae
''Monoclea'' is a genus of liverwort that contains two species. It is the only genus in the family Monocleaceae. Species of this genus can be found in New Zealand, South and Central America as well as in the Caribbean. Classifications of the late twentieth century recognized a separate order Order, ORDER or Orders may refer to: * A socio-political or established or existing order, e.g. World order, Ancien Regime, Pax Britannica * Categorization, the process in which ideas and objects are recognized, differentiated, and understood ..., Monocleales, but later molecular studies show that it is closely related to the liverwort genus '' Dumortiera''. Species in ''Monoclea'' * '' Monoclea forsteri'' * '' Monoclea gottschei'' References External links * * Marchantiales Marchantiales genera Flora of New Zealand {{Bryophyte-stub ...
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Monoclea
''Monoclea'' is a genus of liverwort that contains two species. It is the only genus in the family Monocleaceae. Species of this genus can be found in New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ..., South and Central America as well as in the Caribbean. Classifications of the late twentieth century recognized a separate order, Monocleales, but later molecular studies show that it is closely related to the liverwort genus '' Dumortiera''. Species in ''Monoclea'' * '' Monoclea forsteri'' * '' Monoclea gottschei'' References External links * * Marchantiales Marchantiales genera Flora of New Zealand {{Bryophyte-stub ...
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