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Wahlenbergiella
''Wahlenbergiella'' is a genus of saxicolous (rock-dwelling), crustose lichens in the family Verrucariaceae. It has three species, all of which live in marine intertidal zones where they get periodically immersed in seawater. ''Wahlenbergiella'' closely resembles another lichen genus that includes marine species, '' Hydropunctaria''. ''Wahlenbergiella'' was circumscribed in 2009 by Cécile Gueidan and Holger Thüs. They initially included two species: '' W. striatula'', and the type,'' W. mucosa''. The generic name honours Swedish naturalist Göran Wahlenberg Georg (Göran) Wahlenberg (1 October 1780 – 22 March 1851) was a Sweden, Swedish natural history, naturalist. He was born in Filipstad Municipality, Kroppa, Värmland County. Wahlenberg matriculated at Uppsala University in 1792, received ..., who originally described both of these species. Species *'' Wahlenbergiella mucosa'' *'' Wahlenbergiella striatula'' *'' Wahlenbergiella tavaresiae'' Referen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wahlenbergiella Striatula
''Wahlenbergiella'' is a genus of saxicolous (rock-dwelling), crustose lichens in the family Verrucariaceae. It has three species, all of which live in marine intertidal zones where they get periodically immersed in seawater. ''Wahlenbergiella'' closely resembles another lichen genus that includes marine species, '' Hydropunctaria''. ''Wahlenbergiella'' was circumscribed in 2009 by Cécile Gueidan and Holger Thüs. They initially included two species: '' W. striatula'', and the type,'' W. mucosa''. The generic name honours Swedish naturalist Göran Wahlenberg Georg (Göran) Wahlenberg (1 October 1780 – 22 March 1851) was a Sweden, Swedish natural history, naturalist. He was born in Filipstad Municipality, Kroppa, Värmland County. Wahlenberg matriculated at Uppsala University in 1792, received ..., who originally described both of these species. Species *'' Wahlenbergiella mucosa'' *'' Wahlenbergiella striatula'' *'' Wahlenbergiella tavaresiae'' Referen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucariaceae
The Verrucariaceae are a family of mostly lichenised fungi in the order Verrucariales. The lichen-forming species, which comprise the vast majority of the family, have a wide variety of thallus forms, and include crustose (crust-like), foliose (bushy), and squamulose (scaly) representatives. Several characteristics of the spore-bearing structures, the ascomata, define the family, including their perithecioid form–more or less spherical or flask-shaped, with a single opening and otherwise completely enclosed by a wall. Squamulose members of the Verrucariaceae with simple ascospores (lacking partitions called septa), and without algae in the spore-bearing region are known as lichens; there are more than 80 of these species. The family has several dozen lichenicolous (lichen-dwelling) examples, including a few genera that contain solely lichenicolous members. An unusually diverse variety of photobiont partners have been recorded, mostly green algae, but also brown algae and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wahlenbergiella Mucosa
''Wahlenbergiella mucosa'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae. It is a marine species that grows in the littoral zone, and therefore remains immersed in seawater for extended periods. Its photobiont partner is the green alga '' Paulbroadya petersii''. The lichen was first formally described by Swedish lichenologist Erik Acharius as ''Verrucaria mucosa''. The original type specimens were collected by Göran Wahlenberg from northern Europe. Cécile Gueidan and Holger Thüs transferred the taxon to the newly circumscribed ''Wahlenbergiella'' in 2009 following molecular phylogenetic-directed revisions of the family Verrucariaceae; it is the type species of that genus. It is one of several marine Verrucariaceae lichens that have been investigated for use as possible bioindicators of coastal water pollution Water pollution (or aquatic pollution) is the contamination of water bodies, usually as a result of human activities, so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wahlenbergiella Tavaresiae
''Wahlenbergiella tavaresiae'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Verrucariaceae. Known from several locations in the San Francisco Bay area of the United States, it is a marine lichen that inhabits intertidal zones, and as such is immersed in seawater on a regular basis. Associated algal species include the red algae ''Hildenbrandia'' and ''Mastocarpus papillatus'', and the brown algae '' Pelvetiopsis'' and ''Fucus''. '' Petroderma maculiforme'', a brown alga, is the photobiont partner in the lichen. Taxonomy The lichen was first formally described as a new species in 1997 by Richard Moe from specimens collected from Franciscan sandstone at the upper intertidal zone of Fort Mason, San Francisco, California, in 1975. The species epithet honors mycologist and lichenologist Isabelle Tavares of the Herbarium of the University of California at Berkeley, who introduced the author to the study of lichens. In 2011, Cécile Gueidan, Holger Thü ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Göran Wahlenberg
Georg (Göran) Wahlenberg (1 October 1780 – 22 March 1851) was a Sweden, Swedish natural history, naturalist. He was born in Filipstad Municipality, Kroppa, Värmland County. Wahlenberg matriculated at Uppsala University in 1792, received his doctorate in Medicine in 1806, was appointed ''botanices demonstrator'' in 1814, and professor of medicine and botany in 1829, succeeding Carl Peter Thunberg. He was the last holder of the undivided chair that in the previous century had been held by Carl Linnaeus, Linnaeus. After his death in 1851, the chair was divided into more delimited professorships, and botany became the main duty of the borgströmian professorship, at the time held by Elias Fries. Wahlenberg made his main work in the field of plant geography and published, among other things the ''Flora lapponica'' (1812) and other works on the plant world of northernmost Sweden. He was among the first major scholars to contribute to the plant taxonomy and geography of the Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cécile Gueidan
Cécile Gueidan is a mycologist and lichenologist who applies morphological and molecular biological methods to the origin and taxonomy of fungi that live in lichen symbioses and within rocks. Early life and education Gueidan began working on lichens during her Maitrise (1998) and DEA (1999) qualifications from Université Louis Pasteur and National Museum of Natural History, France. This included practical fieldwork experience with Claude Roux. She then studied molecular methods for lichen taxonomy at Duke University, USA and applied them to pyrenocarpous and Verrucariaceae lichens. Through combining morphological and molecular characters, she was able to refine the taxonomy of these groups. She was awarded her doctorate for this research in 2007. Career Her research focuses on the evolution and taxonomy of lichenised fungi and other ascomycete fungi. After gaining her doctorate, Gueidan carried out research at the Westerdijk Institute in the Netherlands on relationships be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Genera
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Marine Fungi
Marine fungi are species of fungi that live in marine or estuarine environments. They are not a taxonomic group, but share a common habitat. Obligate marine fungi grow exclusively in the marine habitat while wholly or sporadically submerged in sea water. Facultative marine fungi normally occupy terrestrial or freshwater habitats, but are capable of living or even sporulating in a marine habitat. About 444 species of marine fungi have been described, including seven genera and ten species of basidiomycetes, and 177 genera and 360 species of ascomycetes. The remainder of the marine fungi are chytrids and mitosporic or asexual fungi.Species of Higher Marine Fungi University of Mississippi. Retrieved 2012-02-05. Many species of marine fungi are known only from |
Taxa Described In 2009
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verrucariales
Verrucariales is an order of ascomycetous fungi within the subclass Chaetothyriomycetidae of the class Eurotiomycetes. Although most of the Verrucariales are lichenised, the family Sarcopyreniaceae consists of 11 species of lichenicolous (lichen-dwelling) fungi. Phylogenomic analysis suggests that the divergence between the lichenized Verrucariales and nonlichenized Chaetothyriales The Chaetothyriales are an order of ascomycetous fungi in the class Eurotiomycetes and within the subclass Chaetothyriomycetidae. The order was circumscribed in 1987 by mycologist Margaret Elizabeth Barr-Bigelow. Families and genera , Species ... occurred about 131 million years ago. Genera of uncertain placement There are some genera in the Verrucariales that have not been placed with certainty into any family. These are: *'' Botryolepraria'' – 2 spp. *'' Gemmaspora'' – 1 sp. *'' Kalbiana'' – 1 sp. *'' Merismatium'' – 10 spp. References Ascomycota orders Lichen orders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydropunctaria
''Hydropunctaria'' is a genus of saxicolous (rock-dwelling), crustose lichens in the family Verrucariaceae. The genus includes both aquatic and amphibious species, with members that colonise either marine or freshwater habitats. The type species, '' Hydropunctaria maura'', was formerly classified in the large genus ''Verrucaria''. It is a widely distributed species common to littoral zones. Including the type species, five ''Hydropunctaria'' lichens are considered marine species: ''H. adriatica'', ''H. amphibia'', ''H. aractina'', ''H. orae'', and ''H. oceanica''. Taxonomy ''Hydropunctaria'' was circumscribed in 2009 by Christine Keller, Cécile Gueidan, and Holger Thüs, with '' Hydropunctaria maura'' assigned as the type species. Description The thallus of ''Hydropunctaria'' is crustose, with a form ranging from continuous (more or less unbroken) to rimose or areolate. In some species the texture of the thallus is somewhat gelatinous. Documented thallu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
