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Sirenophila
''Sirenophila'' is a genus of crustose lichens in the subfamily Teloschistoideae of the family Teloschistaceae. It has four species with an Australasian distribution. Taxonomy The genus was circumscribed in 2013 by Ulrik Søchting, Ulf Arup, and Patrik Frödén, with '' Sirenophila gintarasii'' assigned as the type species. The generic name ''Sirenophila'', which means "loving mermaids", alludes to the habitat preference this genus: seashore rocks in Australia and New Zealand. The authors included seven species in their original conception of the genus, but ''Sirenophila bermaguiana'', ''S. gallowayi'', and ''S. jackelixii'' have since been transferred to genus '' Elixjohnia'', while ''S. tomareeana'' is now in '' Tarasginia''. Description ''Sirenophila'' lichens have a crustose thallus; sometimes the edge of the thallus lacks a defined form, sometimes the thllaus comprises distinct lobes. Some species have anthraquinones as secondary compounds. The apothecia (fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirenophila Maccarthyi
''Sirenophila maccarthyi'' is a species of corticolous/lignicolous (bark- and wood-dwelling), crustose lichen in the family Teloschistaceae. It has a thallus that is whitish or greyish, often inconspicuous and not always continuous, which can appear darker or dirty grey near its numerous, clustered apothecia. ''Sirenophila maccarthyi'' is distributed across regions including Western Australia, New South Wales, Victoria, Tasmania, and New Zealand, in both coastal and inland habitats. It typically grows on the bark and dead wood of a wide range of trees and shrubs such as ''Acacia sophorae'', '' Araucaria excelsa'', and various ''Eucalyptus'' species. Taxonomy The lichen was formally described as a new species in 2009 by the lichenologists Sergey Kondratyuk, Ingvar Kärnefelt, and John Elix, who classified it in the genus ''Caloplaca''. The type specimen was collected by the second author from Port Welshpool, where it was found growing on trees close to the shore. The spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirenophila Cliffwetmorei
''Sirenophila cliffwetmorei'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. It is found in Australia. Its thallus can reach up to 1 centimetre in width, has a whitish to whitish-grey colour, and is very thin, sometimes almost merging with the , and has paler edges with a darker grey centre. Its numerous tiny apothecia (fruiting bodies) give the thallus a yellow-orange appearance. Taxonomy The lichen was first formally described in 2009 by the lichenologists Sergey Kondratyuk and Ingvar Kärnefelt. The type specimen was collected from Tasmania's Furneaux Group in the Bass Strait. The exact location was Flinders Island, at Yellow Beach, approximately 80 metres from the western end of the beach. The specimen was found on both living and dead branches of a large ''Acacia longifolia'' var. ''sophorae'' tree situated at the head of Yellow Beach. The species epithet honours American lichenologist Clifford Wetmore. Kondratyuk trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirenophila Gintarasii
''Sirenophila gintarasii'' is a species of lichen in the family Teloschistaceae. Found in Australia, it was formally described as a new species in 2009 by lichenologists Sergey Kondratyuk and Ingvar Kärnefelt, as a member of the genus ''Caloplaca''. The type specimen was collected by the authors from the Camel Rock reserve (northeast of Beauty Point township, Murunna Point). There it was found growing on coastal rock outcrops, along with the crustose species '' Sirenophila eos'' and '' Dufourea ligulata'', some of which had been deformed by the lichenicolous fungus species '' Arthonia sytnikii'' and ''Pyrenidium actinellum''. The species epithet honours Tasmanian lichen lichenologist Gintaras Kantvilas. Ulf Arup and colleagues transferred the taxon to the genus ''Sirenophila'' in 2013, following a molecular phylogenetics-based restructuring of the family Teloschistaceae. ''Sirenophila gintarasii'' occurs in New South Wales ) , nickname = , image_map = New South Wales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirenophila Eos
''Sirenophila eos'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Teloschistaceae. It was first formally described as a new species in 2007 by Sergey Kondratyuk and Ingvar Kärnefelt, as ''Caloplaca eos''. The type specimen was collected from rhyolite outcrops in New South Wales. Ulf Arup and colleagues transferred the taxon to the newly circumscribed genus ''Sirenophila'' in 2013, following a molecular phylogenetics Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...-based restructuring of the Teloschistaceae. References {{Taxonbar, from=Q25907185 Teloschistales Lichen species Lichens described in 2007 Lichens of Australia Taxa named by Sergey Kondratyuk Taxa named by Ingvar Kärnefelt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Elixjohnia
''Elixjohnia'' is a genus of lichen-forming fungi in the family Teloschistaceae. It has four species of saxicolous (rock-dwelling), crustose lichens that occur in Australasia. Taxonomy ''Elixjohnia'' was circumscribed in 2017 by Sergey Kondratyuk and Jae-Seoun Jur in 2017, with '' Elixjohnia jackelixii'' assigned as the type species. Phylogenetic analysis shows that the genus is in the large ''Sirenophila''-''Teloschistopsis''-''Halophila'' subclade of the subfamily Teloschistoideae (family Teloschistaceae The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family, estimated to contain over 1800 species, was extensively revised in 2013, including the creation o ...). The genus name honours Australian chemist and lichenologist John Alan Elix, John A. ("Jack") Elix. The existence and phylogenetic structure of the genus was corroborated by molecular phylogenetics, molecular work published by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teloschistaceae
The Teloschistaceae are a large family of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The family, estimated to contain over 1800 species, was extensively revised in 2013, including the creation or resurrection of 31 genera. It contains three subfamilies: Xanthorioideae, Caloplacoideae, and Teloschistoideae. A fourth subfamily, Brownlielloideae, proposed in 2015, has been shown to be part of the Teloschistoideae. Genera This is a list of the genera contained within the Teloschistaceae, based on a 2020 review and summary of ascomycete classification. Following the genus name is the taxonomic authority, year of publication, and the number of species: *'' Amundsenia'' – 2 spp. *'' Andina'' - 1 sp. *'' Apatoplaca'' – 1 sp. *'' Aridoplaca'' - 1 sp. *'' Athallia'' – 17 spp. *'' Austroplaca'' – 10 spp. *'' Blastenia'' – 11 spp. *'' Brownliella'' – 4 spp. *'' Bryoplaca'' – 3 spp. *'' Calogaya'' – 19 spp. *'' Cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ingvar Kärnefelt
Jan Eric Ingvar Kärnefelt (born 1944) is a Swedish lichenologist. Early life and education Kärnefelt was born in Gothenburg, Sweden in 1944. His initial goal in his higher-level studies at University of Cologne in 1966–1967 was to become a dentist. He changed courses in 1968, turning instead to biology at the University of Gothenburg in 1968. Gunnar Degelius, his first teacher during undergraduate studies in botany in 1968, inspired him and others. After Degelius' retirement in 1969, Ingvar continued his studies at Lund University, where Hans Runemark held a position in systematic botany. In 1971 he met Ove Almborn, who became his supervisor. In 1979, he defended his thesis titled "The brown fruticose species of ''Cetraria''". The thesis was later awarded a prize for the best doctoral dissertation in botany at Lund University during a 5-year period by the Royal Physiographic Society in Lund. Career Kärnefelt became associate professor at the Department of Systematic Botany ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conidia
A conidium ( ; ), sometimes termed an asexual chlamydospore or chlamydoconidium (), is an asexual, non-motile spore of a fungus. The word ''conidium'' comes from the Ancient Greek word for dust, ('). They are also called mitospores due to the way they are generated through the cellular process of mitosis. The two new haploid cells are genetically identical to the haploid parent, and can develop into new organisms if conditions are favorable, and serve in biological dispersal. Asexual reproduction in ascomycetes (the phylum Ascomycota) is by the formation of conidia, which are borne on specialized stalks called conidiophores. The morphology of these specialized conidiophores is often distinctive between species and, before the development of molecular techniques at the end of the 20th century, was widely used for identification of (''e.g.'' '' Metarhizium'') species. The terms microconidia and macroconidia are sometimes used. Conidiogenesis There are two main types of coni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bacilliform
A bacillus (), also called a bacilliform bacterium or often just a rod (when the context makes the sense clear), is a rod-shaped bacterium or archaeon. Bacilli are found in many different taxonomic groups of bacteria. However, the name ''Bacillus'', capitalized and italicized, refers to a specific genus of bacteria. The name Bacilli, capitalized but not italicized, can also refer to a less specific taxonomic group of bacteria that includes two orders, one of which contains the genus ''Bacillus''. When the word is formatted with lowercase and not italicized, 'bacillus', it will most likely be referring to shape and not to the genus at all. Bacilliform bacteria are also often simply called rods when the bacteriologic context is clear. Bacilli usually divide in the same plane and are solitary, but can combine to form diplobacilli, streptobacilli, and palisades. * Diplobacilli: Two bacilli arranged side by side with each other. * Streptobacilli: Bacilli arranged in chains. * Coccobac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellipsoid
An ellipsoid is a surface that may be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the zero set of a polynomial of degree two in three variables. Among quadric surfaces, an ellipsoid is characterized by either of the two following properties. Every planar cross section is either an ellipse, or is empty, or is reduced to a single point (this explains the name, meaning "ellipse-like"). It is bounded, which means that it may be enclosed in a sufficiently large sphere. An ellipsoid has three pairwise perpendicular axes of symmetry which intersect at a center of symmetry, called the center of the ellipsoid. The line segments that are delimited on the axes of symmetry by the ellipsoid are called the ''principal axes'', or simply axes of the ellipsoid. If the three axes have different lengths, the figure is a triaxial ellipsoi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Described In 2013
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 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teloschistales
The Teloschistales are an order of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. According to one 2008 estimate, the order contains 5 families, 66 genera, and 1954 species. The predominant photobiont partners for the Teloschistales are green algae from the genera ''Trebouxia'' and '' Asterochloris''. Families *Brigantiaeaceae The Brigantiaeaceae are a family of fungi in the order Teloschistales. Species in this family are lichenized with green algae The green algae (singular: green alga) are a group consisting of the Prasinodermophyta and its unnamed sister whi ... * Letrouitiaceae * Megalosporaceae * Teloschistaceae References Lichen orders Lecanoromycetes orders Taxa described in 1986 Taxa named by David Leslie Hawksworth {{Teloschistales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
