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Pringsheimiella Gratulans
''Pringsheimiella'' is a genus of green algae, in the family Ulvellaceae. The genus name of ''Pringsheimiella'' is in honour of Nathanael Pringsheim (1823–1894), who was a German botanist. The genus was circumscribed by Franz Xaver Rudolf von Höhnel Franz Xaver Rudolf von Höhnel (24 September 1852 – 11 November 1920) was an Austrian bryologist, mycologist, and algologist, brother of explorer Ludwig von Höhnel (1857–1942).Ronald E. Coons and Pascal James Imperato, eds. ''Over Lan ... in Ann. Mykol. vol.18 on page 97 in 1920. Several species have been moved into other genera; * ''P. crenulata'' now accepted as '' Ulvella crenulata'' * ''P. marchantiae'' accepted as '' Ulvella marchantiae'' * ''P. mauritiana'' accepted as '' Ulvella mauritiana'' * ''P. sanctae-luciae'' accepted as '' Ulvella santae-luciae'' * ''P. scutata'' accepted as '' Ulvella scutata'' * ''P. striata'' accepted as '' Ulvella striata'' * ''P. udotea'' accepted as '' Ulvella udot ...
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Pringsheimiella Conchyliophila
''Pringsheimiella'' is a genus of green algae, in the family Ulvellaceae. The genus name of ''Pringsheimiella'' is in honour of Nathanael Pringsheim (1823–1894), who was a German botanist. The genus was circumscribed by Franz Xaver Rudolf von Höhnel Franz Xaver Rudolf von Höhnel (24 September 1852 – 11 November 1920) was an Austrian bryologist, mycologist, and algologist, brother of explorer Ludwig von Höhnel (1857–1942).Ronald E. Coons and Pascal James Imperato, eds. ''Over Lan ... in Ann. Mykol. vol.18 on page 97 in 1920. Several species have been moved into other genera; * ''P. crenulata'' now accepted as '' Ulvella crenulata'' * ''P. marchantiae'' accepted as '' Ulvella marchantiae'' * ''P. mauritiana'' accepted as '' Ulvella mauritiana'' * ''P. sanctae-luciae'' accepted as '' Ulvella santae-luciae'' * ''P. scutata'' accepted as '' Ulvella scutata'' * ''P. striata'' accepted as '' Ulvella striata'' * ''P. udotea'' accepted as '' Ulvella udot ...
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Ulvella Crenulata
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Udoteae
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Striata
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Scutata
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Santae-luciae
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Mauritiana
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Ulvella Marchantiae
''Ulvella'' is the scientific name of two genera and may refer to: * ''Ulvella'' (alga) P.L.Crouan & H.M.Crouan, 1859, a genus of algae in the family Ulvellaceae * ''Ulvella'' (fungus) (Nyl.) Trevis. 1880, a genus of fungi of uncertain placement in the division Ascomycota {{Genus disambiguation ...
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Franz Xaver Rudolf Von Höhnel
Franz Xaver Rudolf von Höhnel (24 September 1852 – 11 November 1920) was an Austrian bryologist, mycologist, and algologist, brother of explorer Ludwig von Höhnel (1857–1942).Ronald E. Coons and Pascal James Imperato, eds. ''Over Land and Sea: Memoir of an Austrian rear Admiral's Life in Europe and Africa, 1857-1909.'' Holmes and Meier, New York, 2000. He obtained his PhD in Strasbourg in 1877, and was a professor of botany in the Vienna University of Technology from 1884 to 1920. Höhnel described roughly 250 new genera and 500 species of fungi, and was known for his contributions to the taxonomy of the Coelomycetes ( asexual fungi that form conidia in a cavity (pycnidia) or a mat-like cushion of hyphae). He died in Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...
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Pringsheimiella Gratulans
''Pringsheimiella'' is a genus of green algae, in the family Ulvellaceae. The genus name of ''Pringsheimiella'' is in honour of Nathanael Pringsheim (1823–1894), who was a German botanist. The genus was circumscribed by Franz Xaver Rudolf von Höhnel Franz Xaver Rudolf von Höhnel (24 September 1852 – 11 November 1920) was an Austrian bryologist, mycologist, and algologist, brother of explorer Ludwig von Höhnel (1857–1942).Ronald E. Coons and Pascal James Imperato, eds. ''Over Lan ... in Ann. Mykol. vol.18 on page 97 in 1920. Several species have been moved into other genera; * ''P. crenulata'' now accepted as '' Ulvella crenulata'' * ''P. marchantiae'' accepted as '' Ulvella marchantiae'' * ''P. mauritiana'' accepted as '' Ulvella mauritiana'' * ''P. sanctae-luciae'' accepted as '' Ulvella santae-luciae'' * ''P. scutata'' accepted as '' Ulvella scutata'' * ''P. striata'' accepted as '' Ulvella striata'' * ''P. udotea'' accepted as '' Ulvella udot ...
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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 ...
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Botanist
Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek word (''botanē'') meaning "pasture", " herbs" "grass", or " fodder"; is in turn derived from (), "to feed" or "to graze". Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress. Nowadays, botanists (in the strict sense) study approximately 410,000 species of land plants of which some 391,000 species are vascular plants (including approximately 369,000 species of flowering plants), and approximately 20,000 are bryophytes. Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, med ...
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