Ulvophyceae
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Ulvophyceae
The Ulvophyceae or ulvophytes are a class of green algae, distinguished mainly on the basis of Ultrastructure, ultrastructural morphology, Biological life cycle, life cycle and molecular phylogenetics, molecular phylogenetic data. The sea lettuce, sea lettuce, ''Ulva'', belongs here. Other well-known members include ''Caulerpa'', ''Codium'', ''Acetabularia'', ''Cladophora'', ''Trentepohlia (alga), Trentepohlia'' and ''Monostroma''. The Ulvophytes are diverse in their Morphology (biology), morphology and their habitat (ecology), habitat. Most are seaweeds such as those listed above. Others, such as ''Rhizoclonium'', ''Pithophora'' and some species of ''Cladophora'' live in fresh water and in some areas are considered weeds. Morphology Ulvophycean algae are diverse in morphology. The thalli are typically colonial (some are unicellular). A few taxa have flagella in their vegetative stage, such as ''Oltmannsiellopsis''. Common forms include filaments (both unbranched and branched) ...
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Trentepohliales
Trentepohliaceae are a family (biology), family of green algae, and the only family in the order Trentepohliales. It is a member of the Ulvophyceaen green algae. The family is characterized by traits like net-like chloroplasts without pyrenoids, cell walls with plasmodesmata and cytokinesis by production of a phragmoplast. They are subaerial algae with a worldwide distribution. Description Typically, members of Trentepohliaceae consist of uniseriate filaments that are variably branched. In some genera, the filaments are branched and produce small, bushy tufts; in others, the filaments are crowded, and grow into a pseudoparenchymatous small disc. Reproduction is both asexual and sexual. Zoospores are formed in what is called a "sporangiate-lateral", in which a sporangium is attached via a highly modified branch called a "suffultory cell". Their life cycle involves an alternation of generations between a sporophyte phase and a gametophyte phase; the sporophyte and gametophyte may ...
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Green Algae
The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and Charophyta/ Streptophyta. The land plants ( Embryophytes) have emerged deep within the charophytes as a sister of the Zygnematophyceae. Since the realization that the Embryophytes emerged within the green algae, some authors are starting to include them. The completed clade that includes both green algae and embryophytes is monophyletic and is referred to as the clade Viridiplantae and as the kingdom Plantae. The green algae include unicellular and colonial flagellates, most with two flagella per cell, as well as various colonial, coccoid (spherical), and filamentous forms, and macroscopic, multicellular seaweeds. There are about 22,000 species of green algae, many of which live most of their lives as single cells, while other species form coenobia (colonies), long filaments ...
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Blastophysa
''Blastophysa'' is a genus of green algae in the class Ulvophyceae. , in AlgaeBase AlgaeBase is a global species database of information on all groups of algae, both seaweed, marine and freshwater algae, freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael D. Guiry, Michael Guiry. Text ... the only species is ''Blastophysa rhizopus''. References Ulvophyceae Ulvophyceae genera Monotypic algae genera Enigmatic algae taxa {{Ulvophyceae-stub ...
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Ignatiales
Ignatiaceae is a family of green algae in the class Ulvophyceae The Ulvophyceae or ulvophytes are a class of green algae, distinguished mainly on the basis of Ultrastructure, ultrastructural morphology, Biological life cycle, life cycle and molecular phylogenetics, molecular phylogenetic data. The sea lettu .... It is the only family in the order Ignatiales. References Ulvophyceae Ulvophyceae families {{Ulvophyceae-stub ...
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Trentepohlia (alga)
''Trentepohlia'' is a genus of filamentous chlorophyte green algae in the family Trentepohliaceae, living free on terrestrial supports such as tree trunks and wet rocks or symbiotically in lichens. The filaments of ''Trentepohlia'' often have a strong orange colour (photograph at right) caused by the presence of large quantities of carotenoid pigments which mask the green of the chlorophyll. Nomenclature Organisms belonging to the genus ''Trentepohlia'' were first described by Linnaeus in 1759; he named his species ''Byssus aureus'' (currently known as ''Trentepohlia aurea''). The genus was circumscribed by Carl Friedrich Philipp von Martius in Fl. Crypt. Erlang. on page 351 in 1817. The genus name of ''Trentepohlia'' is in honour of Johann Friedrich Trentepohl (1748–1806), who was a German clergyman and botanist. He worked as a lecturer and Pastor in various places in Wesermarsch. Martius' name was conserved in favor of the moss genus ''Trentepohlia'' and the Brassicaceae ...
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Trichophilus
''Trichophilus'' is a genus of green algae. ''Trichophilus welckeri'' is found growing in the fur of certain sloth species and is believed to provide them with camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b .... References Ulvophyceae genera Ulvophyceae Enigmatic algae taxa {{Green algae-stub ...
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Sykidiales
''Sykidion'' is a genus of green algae. ''Pseudoneochloris'' is a synonym of this genus. , ''Sykidion'' was the only genus in the family Sykidiacaeae, which was the only family in the order Sykidiales. Species , AlgaeBase AlgaeBase is a global species database of information on all groups of algae, both seaweed, marine and freshwater algae, freshwater, as well as sea-grass. History AlgaeBase began in March 1996, founded by Michael D. Guiry, Michael Guiry. Text ... accepted the following species: *'' Sykidion droebakense'' Wille *'' Sykidion dyeri'' E.P.Wright *'' Sykidion gomphonematis'' K.I.Meyer *'' Sykidion marinum'' (Shin Watanabe & al.) Darienko & al., syn. ''Pseudoneochloris marina'' *'' Sykidion praecipitans'' (Tschermak-Woess) Komárek References Ulvophyceae genera Ulvophyceae {{Ulvophyceae-stub ...
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Caulerpa
''Caulerpa'' is a genus of seaweeds in the family Caulerpaceae (among the green algae). They are unusual because they consist of only one cell with many cell nucleus, nuclei, making them among the biggest single cells in the world. Referring to the crawling growth habit#Structure, habit of its thallus, the name means 'stem (that) creeps', from the Ancient Greek ' (, ‘stalk’) and ' (, ‘to creep’). Taxonomy and nomenclature First described by Jean Vincent Lamouroux in 1809, ''Caulerpa'' is the only genus under the family Caulerpaceae, from the order Bryopsidales, class Ulvophyceae, and phylum Chlorophyta. Through the use of ''tuf''A gene sequencing, it was revealed that ''Pseudochlorodesmis'' F. Børgesen was a sister clade of ''Caulerpa''. Cremen et al. proposed a new classification scheme in Bryopsidales, wherein Caulerpaceae and Halimedaceae were described as sister families. Species discrimination via morphology-based identification is often hampered by the high degr ...
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Cladophorales
Cladophorales are an order of green algae, in the class Ulvophyceae. The earliest known representative is ''Proterocladus antiquus'' from the Mesoproterozoic-Neoproterozoic boundary in North China. The order Cladophorales consists of filamentous macroalgae attached to a surface. The filaments are uniseriate (one cell thick) with multinucleate cells, and are unbranched or profusely branched. In some taxa, the filaments are modified into giant single cells, three-dimensional networks of branches, or pseudoparenchymatic clusters. Currently, Cladophorales has an expanded circumscription that includes Siphonocladales. Classification has been difficult, because the simple morphology has led to convergent evolution Convergent evolution is the independent evolution of similar features in species of different periods or epochs in time. Convergent evolution creates analogous structures that have similar form or function but were not present in the last comm .... The current hypothes ...
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Chlorocystidales
Chlorocystidaceae is a family of green algae. It is the only family in the order Chlorocystidales. The family was formerly placed in the order Ulotrichales.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is loca ...br>webpage on Chlorocystidaceae Data extracted from the References Ulvophyceae Ulvophyceae families {{Ulvophyceae-stub ...
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Oltmannsiellopsidales
Oltmannsiellopsidales is an order of green algae in the class Ulvophyceae.See the NCBI The National Center for Biotechnology Information (NCBI) is part of the National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The NCBI is loca ...br>webpage on Oltmansiellopsidales Data extracted from the It contains the family Oltmannsiellopsidaceae. References Chlorophyta orders Monotypic algae orders {{Ulvophyceae-stub ...
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Ulotrichales
Ulotrichales is an order of green algae in the class Ulvophyceae.See the NCBIbr>webpage on Ulotrichales Data extracted from the Genera unplaced to family (''incertae sedis''): *'' Trichosarcina'' Families * '' Binucleariaceae'' * '' Collinsiellaceae'' * '' Gayraliaceae'' * '' Gloeotilaceae'' * ''Gomontiaceae Gomontiaceae is a family of green algae The green algae (: green alga) are a group of chlorophyll-containing autotrophic eukaryotes consisting of the phylum Prasinodermophyta and its unnamed sister group that contains the Chlorophyta and ...'' * '' Hazeniaceae'' * '' Helicodictyaceae'' * '' Kraftionemaceae'' * '' Monostromataceae'' * '' Planophilaceae'' * '' Sarcinofilaceae'' * '' Tupiellaceae'' * '' Ulotrichaceae'' References Chlorophyta orders {{Ulvophyceae-stub ...
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