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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 ''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 branches called archegoniophores or carpocephala, and (b) sterile cells celled elaters inside the sporangium. Phylogeny (extant Marchantiales) Based on the work by Villarreal et al. 2015 Phylogeny (extant and extinct Marchantiales) Extinct complex thalloid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marchantiophyta
The Marchantiophyta () are a division of non-vascular land plants commonly referred to as hepatics or liverworts. 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. 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 (present in many mosses) and may bear marginal cilia (very rare in mosses). Other differences are not universal for all mosses and liverworts, but the occurrence of leaves arranged in three ranks, the presence of deep lobes or segmented leaves, or a lack of clearly diff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preissia
''Preissia'' is a genus of liverworts in the order Marchantiales. It is a member of family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ... Marchantiaceae within that order. This genus has a worldwide distribution. Species in ''Preissia'' * '' Preissia quadrata'', (''P. commutata'') References External links Description and photos of ''Preissia quadrata'' Diagrams and photo of ''Preissia quadrata'' Marchantiales Marchantiales genera {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marchantia
''Marchantia'' is a genus of liverworts in the family Marchantiaceae and the order Marchantiales. 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 borne atop special gametophore stalks called antheridiophores and archegoni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, Monocleales, but later molecular studies show that it is closely related to the liverwort genus '' Dumortiera''. Species in ''Monoclea'' * ''Monoclea forsteri'' * ''Monoclea gottschei ''Monoclea gottschei'' is a species of liverwort belonging to the family Monocleaceae. A study in tropical Ecuador found that ''Monoclea gottschei'' was typically not found in urban environments despite being found in a nearby more pristine loc ...'' References External links * * Marchantiales Marchantiales genera Flora of New Zealand {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sauteria
''Sauteria'' is a genus of liverwort in the family Cleveaceae. 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 ''Sauteria'' is a genus of liverwort in the family Cleveaceae. It contains the following species: * ''Sauteria alpina'' (Nees & Bisch.) Nees * ''Sauteria berteroana'' Mont. nresolved* ''Sauteria chilensis'' (Lindenb. ex Mont.) Grolle * ''Sauter ...'' S. Hatt. References External links Marchantiales Marchantiales genera Taxonomy articles created by Polbot {{bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The ext .... Species: * '' Clevea hyalina'' (Sommerf.) Lindb. References {{Taxonbar, from=Q17301264 Marchantiales Marchantiales genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References Marchantiales Marchantiales genera Endangered plants Flora of Sichuan Flora of West Himalaya Monotypic bryophyte genera Taxonomy articles created by Polbot {{Bryophyte-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveaceae
Cleveaceae is a family of liverworts belonging to the order Marchantiales. Genera: * '' Athalamia'' Falc. * ''Clevea'' Lindb. * '' Peltolepis'' Lindb. * ''Sauteria ''Sauteria'' is a genus of liverwort in the family Cleveaceae. It contains the following species: * ''Sauteria alpina'' (Nees & Bisch.) Nees * ''Sauteria berteroana'' Mont. nresolved* ''Sauteria chilensis'' (Lindenb. ex Mont.) Grolle * ''Saute ...'' Nees References {{Taxonbar, from=Q17276581 Marchantiales Liverwort families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 * '' Dumortiera'', now in family Dumortieraceae * '' Lunularia'', now in family Lunulariaceae * '' Reboulia'', now in family Aytoniaceae Aytoniaceae is a fami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riccia
''Riccia'' is a genus of liverworts in the order Marchantiales. These plants are small and thalloid, that is 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 rows as t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island count ..., 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lunularia Cruciata
''Lunularia cruciata'', the crescent-cup liverwort, is a liverwort of the order Marchantiales (until recently included in the order Lunulariales), and the only species in the genus ''Lunularia'' and family Lunulariaceae. The name, from Latin ''luna'', moon, refers to the moon-shaped gemma cups. Distribution ''L. cruciata'' is distributed across the world, found in continents including Europe, Australasia, Asia, the Americas, and Africa. It occurs commonly in western Europe, and is native to the Mediterranean region, where the morphological forms from sexual reproduction are more frequently found there. It is also common in California, where it now grows "wild", and is known as an introduced weed in gardens and greenhouses in Australia.Schuster, Rudolf M. ''The Hepaticae and Anthocerotae of North America'', volume VI, pages 80-91. (Chicago: Field Museum of Natural History, 1992). . Ella Orr Campbell believed that ''L. cruciata'' was introduced into New Zealand sometime after 18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
