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Stylonematophyceae
Stylonematophyceae is a class of red algae Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxon .... References External links * * Stylonematophyceae at AlgaeBase Red algae classes {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Algae
Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxonomic revisions. The majority of species (6,793) are Florideophyceae, and mostly consist of multicellular, ocean, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, no terrestrial species exist, which may be due to an evolutionary bottleneck in which the last common ancestor lost about 25% of its core genes and much of its evolutionary plasticity. Red algae form a distinct group characterized by eukaryotic cells without flagella and centrioles, chloroplasts without external endoplasmic reticulum or unstack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylonematophyceae
Stylonematophyceae is a class of red algae Red algae, or Rhodophyta (, ; ), make up one of the oldest groups of eukaryotic algae. The Rhodophyta comprises one of the largest Phylum, phyla of algae, containing over 7,000 recognized species within over 900 Genus, genera amidst ongoing taxon .... References External links * * Stylonematophyceae at AlgaeBase Red algae classes {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylonematales
Stylonemataceae is a family of red algae in the class Stylonematophyceae. It is the only family in the monotypic order Stylonematales. Genera and number of species # ''Bangiopsis'' F.Schmitz 3 # ''Chroodactylon'' Hansgirg 3 # ''Chroothece'' Hansgirg 9 # ''Colacodictyon'' Feldmann 1 # ''Empselium'' G.I.Hansen & Scagel 1 # ''Goniotrichiopsis'' G.M.Smith 2 # ''Kyliniella'' Skuja 1 # ''Neevea'' Batters 1 # ''Purpureofilum'' J.A.West, Zuccarello & J.L.Scott 1 # ''Rhodaphanes'' J.A.West, G.C.Zuccarello, J.L Scott & K.A.West 1 # ''Rhodosorus'' Geitler 2 # ''Rhodospora'' Geitler 1 # ''Stylonema'' Reinsch 19 # ''Tsunamia'' J.A.West, G.I.Hansen, Zuccarello & T.Hanyuda 1 # ''Viator (rod algi), Viator'' G.I.Hansen, J.A.West, & G.C.Zuccarello 1 ''Zachariasia'' Lemmermann, 1895 (with holotype ''Zachariasia endophytica'' Lemmermann) is currently regarded as a synonym of ''Chroothece''. This should not be confused with ''Zachariasia'' Voigt 1901 non Lemmermann 1895, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stylonema Alsidii
''Stylonema alsidii'' is a species of marine red algae. The type locality is Trieste, Italy, but it has a worldwide distribution. The species was first described by Giovanni Zanardini in 1840 as ''Bangia alsidii''. Distribution It is one of the algae of the Houtman Abrolhos, found off the coast of Western Australia. It is one of the red seaweeds of South Africa, including the seaweeds of the Cape Peninsula and False Bay. Ecology It is susceptible to infection by the parasitic oomycete ''Pythium porphyrae ''Pythium porphyrae'', is a parasitic species of oomycete in the family Pythiaceae. It is the cause of red rot disease or red wasting disease, also called ' () in Japanese. The specific epithet ''porphyrae'' () stems from the genus of one of ...''. References External links * * ''Stylonema alsidii'' at AlgaeBase Stylonematophyceae Protists described in 1840 Red algae species {{red alga-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Class (biology)
In biological classification, class () is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. Other well-known ranks in descending order of size are domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order. History The class as a distinct rank of biological classification having its own distinctive name – and not just called a ''top-level genus'' ''(genus summum)'' – was first introduced by French botanist Joseph Pitton de Tournefort in the classification of plants that appeared in his '' Eléments de botanique'' of 1694. Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct ''grade'' of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct ''type'' of construction, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
