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Dudresnaya Verticillata
''Dudresnaya'' is a genus of red algae. The genus name of ''Dudresnaya'' is in honour of Guy-Ambroise Dudresnay (1770 - 1837), a French soldier interested in Botany and correspondent with Bonnemaison. The genus was circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ... by Théophile Bonnemaison in J. Phys. Chim. Hist. Nat. Arts Vol.94 on page 180 in 1822. Taxonomy ''Dudresnaya'' contains the following species: * '' Dudresnaya verticillata'' * '' Dudresnaya bermudensis'' References Dumontiaceae Red algae genera {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Algae
Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority of species (6,793) are found in the Florideophyceae (class), and mostly consist of multicellular, marine algae, including many notable seaweeds. Red algae are abundant in marine habitats but relatively rare in freshwaters. Approximately 5% of red algae species occur in freshwater environments, with greater concentrations found in warmer areas. Except for two coastal cave dwelling species in the asexual class Cyanidiophyceae, there are no terrestrial species, 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. The red algae form a distinct group characterized by having eukaryotic cells without flagella and centrioles, chloroplasts that l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. If we determine that species X, Y, and Z belong in Genus A, and species T, U, V, and W belong in Genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecular phylogenetics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Théophile Bonnemaison
Theophilus is a male given name with a range of alternative spellings. Its origin is the Greek word Θεόφιλος from θεός (God) and φιλία (love or affection) can be translated as "Love of God" or "Friend of God", i.e., it is a theophoric name, synonymous with the name '' Amadeus'' which originates from Latin, Gottlieb in German and Bogomil in Slavic. Theophilus may refer to: People Arts * Theophilus Cibber (1703–1758), English actor, playwright, author, son of the actor-manager Colley Cibber * Theophilus Clarke (1776?–1831), English painter * Theophilos Hatzimihail (ca. 1870–1934), Greek folk painter from Lesbos * Theophilus Presbyter (1070–1125), Benedictine monk, and author of the best-known medieval "how-to" guide to several arts, including oil painting — thought to be a pseudonym of Roger of Helmarshausen Historical * Theophilos (emperor) (800 to 805–842), Byzantine Emperor (reigned 829–842), the second of the Phrygian dynasty * Theophilus (g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudresnaya Verticillata
''Dudresnaya'' is a genus of red algae. The genus name of ''Dudresnaya'' is in honour of Guy-Ambroise Dudresnay (1770 - 1837), a French soldier interested in Botany and correspondent with Bonnemaison. The genus was circumscribed In geometry, the circumscribed circle or circumcircle of a polygon is a circle that passes through all the vertices of the polygon. The center of this circle is called the circumcenter and its radius is called the circumradius. Not every polyg ... by Théophile Bonnemaison in J. Phys. Chim. Hist. Nat. Arts Vol.94 on page 180 in 1822. Taxonomy ''Dudresnaya'' contains the following species: * '' Dudresnaya verticillata'' * '' Dudresnaya bermudensis'' References Dumontiaceae Red algae genera {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudresnaya Bermudensis
''Dudresnaya'' is a genus of red algae. The genus name of ''Dudresnaya'' is in honour of Guy-Ambroise Dudresnay (1770 - 1837), a French soldier interested in Botany and correspondent with Bonnemaison. The genus was circumscribed by Théophile Bonnemaison in J. Phys. Chim. Hist. Nat. Arts Vol.94 on page 180 in 1822. Taxonomy ''Dudresnaya'' contains the following species: * ''Dudresnaya verticillata ''Dudresnaya'' is a genus of red algae. The genus name of ''Dudresnaya'' is in honour of Guy-Ambroise Dudresnay (1770 - 1837), a French soldier interested in Botany and correspondent with Bonnemaison. The genus was circumscribed In geometry ...'' * '' Dudresnaya bermudensis'' References Dumontiaceae Red algae genera {{Rhodophyta-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dumontiaceae
Dumontiaceae is a red alga family in the order Gigartinales. Species in the British Isles, includes '' Dumontia contorta'' (S.G.Gmelin) Ruprecht.Irvine, L.M..1983. ''Seaweeds of the British Isles''. Volume 1 Rhodophyta. Part 2A. British Museum. Genera According to WoRMS Worms may refer to: *Worm, an invertebrate animal with a tube-like body and no limbs Places *Worms, Germany Worms () is a city in Rhineland-Palatinate, Germany, situated on the Upper Rhine about south-southwest of Frankfurt am Main. It had ...; * '' Andersoniella'' * '' Constantinea'' * '' Cryptosiphonia'' * '' Dasyphloea'' * '' Dilsea'' * '' Dudresnaya'' * '' Dumontia'' * '' Farlowia'' * '' Gibsmithia'' * '' Hyalosiphonia'' * '' Kraftia'' * '' Leptocladia'' * '' Masudaphycus'' * '' Neodilsea'' * '' Orculifilum'' * '' Pikea'' * '' Rhodopeltis'' * '' Thuretellopsis'' * '' Waernia'' * '' Weeksia'' Also; * Former genus ''Borrichius'' now accepted as synonym of ''Dudresnaya'' * Forme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
