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Gyalecta Kibiensis
''Gyalecta kibiensis'' is a species of saxicolous (rock-dwelling), crustose lichen in the family Gyalectaceae. Found in Japan, it was formally described as a new species in 2005 by Hiroshi Harada and Isao Yoshimura. The type specimen was collected from limestone in Iwatutsudani (Takahashi, Okayama). The thallus of the lichen is smooth and has a light greyish-green colour. A year later it was later recorded growing on a limestone outcrop on the banks of the Takano River, in Ehime Prefecture is a prefecture of Japan located on the island of Shikoku. Ehime Prefecture has a population of 1,342,011 (1 June 2019) and has a geographic area of 5,676 km2 (2,191 sq mi). Ehime Prefecture borders Kagawa Prefecture to the northeast, T .... References Gyalectales Lichen species Lichens described in 2005 Lichens of Japan {{Lecanoromycetes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxicolous Lichen
A saxicolous lichen is a lichen that grows on rock. The prefix "sax" from the Latin means "rock" or "stone". Characteristics Saxicolous lichens exhibit very slow growth rates. They may develop on rock substrates for long periods of time, given the absence of external disturbances. The importance of the mineral composition of the rock substrate, as well as the elemental geochemistry Geochemistry is the science that uses the tools and principles of chemistry to explain the mechanisms behind major geological systems such as the Earth's crust and its oceans. The realm of geochemistry extends beyond the Earth, encompassing th ... is also important to the distribution of saxicolous lichens, but the relationship between the substrate influence on lichens, either chemical or textural, is still obscure. Communities of saxicolous lichens are often species-rich in terms of number. References Lichenology {{lichen-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustose Lichen
Crustose lichens are lichens that form a crust which strongly adheres to the substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichens consists of a cortex layer, an algal layer, and a medulla. The upper cortex layer is differentiated and is usually pigmented. The algal layer lies beneath the cortex. The medulla fastens the lichen to the substrate and is made up of fungal hyphae. The surface of crustose lichens is characterized by branching cracks that periodically close in response to climatic variations such as alternate wetting and drying regimes. Subtypes * Powdery – considered as the simplest subtype due to the absence of an organized thallus. :The thallus appears powdery. :E.g. Genera '' Lepraria'', ''Vezdaea'' * Endolithic – grows inside the rock, usually in interstitial spaces between mineral grains. The :upper cortex is usually developed. :E.g. Genus ''Lecidea'' * Epili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyalectaceae
The Gyalectaceae are a family of fungi in the order Gyalectales. Genera According to a 2022 estimate, Gyalectaceae contains 6 genera and 89 species (including 11 species in genus ''Cryptolechia''). *'' Francisrosea'' – 1 sp. *''Gyalecta'' – 50 spp. *'' Neopetractis'' – 2 spp. *''Ramonia'' – 24 spp. *''Semigyalecta ''Semigyalecta'' is a genus of lichenized fungi in the family Gyalectaceae. It is a monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that do ...'' – 1 spp. The genus ''Cryptolechia'' was synonymized with ''Gyalecta'' in 2019. References Gyalectales Lecanoromycetes families Taxa named by Ernst Stizenberger Taxa described in 1862 Lichen families {{Lecanoromycetes-stub ... [...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 z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type (biology)
In biology, a type is a particular specimen (or in some cases a group of specimens) of an organism to which the scientific name of that organism is formally attached. In other words, a type is an example that serves to anchor or centralizes the defining features of that particular taxon. In older usage (pre-1900 in botany), a type was a taxon rather than a specimen. A taxon is a scientifically named grouping of organisms with other like organisms, a set that includes some organisms and excludes others, based on a detailed published description (for example a species description) and on the provision of type material, which is usually available to scientists for examination in a major museum research collection, or similar institution. Type specimen According to a precise set of rules laid down in the International Code of Zoological Nomenclature (ICZN) and the International Code of Nomenclature for algae, fungi, and plants (ICN), the scientific name of every taxon is alm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Takahashi, Okayama
is a city located in Okayama Prefecture, Japan. The city was founded on May 1, 1954. As of March 31, 2017, the city has an estimated population of 31,556, with 14,519 households and a population density of 58 persons per km². The total area is 547.01 km². Bitchū Matsuyama Castle overlooks the town. Another significant location is Raikyū-ji, a Buddhist temple with an historic garden. On October 1, 2004, Takahashi absorbed the town of Ukan (from Jōbō District), and the towns of Nariwa, Kawakami and Bitchū (all from Kawakami District) to become the new and expanded city of Takahashi. Kawakami District was dissolved as a result of this merger. Geography Climate Takahashi has a humid subtropical climate (Köppen climate classification ''Cfa''). The average annual temperature in Takahashi is . The average annual rainfall is with July as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . The highes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thallus
Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms were previously known as the thallophytes, a polyphyletic group of distantly related organisms. An organism or structure resembling a thallus is called thalloid, thallodal, thalliform, thalline, or thallose. A thallus usually names the entire body of a multicellular non-moving organism in which there is no organization of the tissues into organs. Even though thalli do not have organized and distinct parts ( leaves, roots, and stems) as do the vascular plants, they may have analogous structures that resemble their vascular "equivalents". The analogous structures have similar function or macroscopic structure, but different microscopic structure; for example, no thallus has vascular tissue. In exceptional cases such as the Lemnoide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outcrop
An outcrop or rocky outcrop is a visible exposure of bedrock or ancient superficial deposits on the surface of the Earth. Features Outcrops do not cover the majority of the Earth's land surface because in most places the bedrock or superficial deposits are covered by soil and vegetation and cannot be seen or examined closely. However, in places where the overlying cover is removed through erosion or tectonic uplift, the rock may be exposed, or ''crop out''. Such exposure will happen most frequently in areas where erosion is rapid and exceeds the weathering rate such as on steep hillsides, mountain ridges and tops, river banks, and tectonically active areas. In Finland, glacial erosion during the last glacial maximum (ca. 11000 BC), followed by scouring by sea waves, followed by isostatic uplift has produced many smooth coastal and littoral outcrops. Bedrock and superficial deposits may also be exposed at the Earth's surface due to human excavations such as quarrying and build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Takano River
The Takano River is located in Kyoto Prefecture, Japan. The Kamo River and Takano River join on the Tadasu River Banks (Jp., Tadasu-gawara 糺河原). There is the "River Confluence" shrine of Shimogamo Shrine, leading to the forested area called Tadasu-no-mori. See also *Kamo River The is located in Kyoto Prefecture, Japan. The riverbanks are popular walking spots for residents and tourists. In summer, restaurants open balconies looking out to the river. There are walkways running alongside the river, and some stepping ... References {{Rivers of Japan Rivers of Kyoto Prefecture Rivers of Japan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ehime Prefecture
is a prefecture of Japan located on the island of Shikoku. Ehime Prefecture has a population of 1,342,011 (1 June 2019) and has a geographic area of 5,676 km2 (2,191 sq mi). Ehime Prefecture borders Kagawa Prefecture to the northeast, Tokushima Prefecture to the east, and Kōchi Prefecture to the southeast. Matsuyama is the capital and largest city of Ehime Prefecture and the largest city on Shikoku, with other major cities including Imabari, Niihama, and Saijō. Notable past Ehime residents include three Nobel Prize winners: they are Kenzaburo Oe (1994 Nobel Prize in Literature), Shuji Nakamura (2014 Nobel Prize in Physics), and Syukuro Manabe (2021 Nobel Prize in Physics). History Until the Meiji Restoration, Ehime Prefecture was known as Iyo Province. Since before the Heian period, the area was dominated by fishermen and sailors who played an important role in defending Japan against pirates and Mongolian invasions. After the Battle of Sekigahara, the Toku ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyalectales
''Gyalectales'' is an order of lichen-forming fungi in the class Lecanoromycetes. It contains 5 families, 15 genera and about 550 species. Taxonomy The Gyalectales were introduced in a 1974 publication by Aino Henssen and Martin Jahns, but not formally published until 1986 by David Hawksworth and Ove Eriksson. Phylogeny An early (2002) phylogenetics study showed that the order Ostropales, as was then circumscribed, was paraphyletic, and proposed that the Ostropales sensu lato included the Gyalectales and Trapeliaceae. Although they had traditionally been considered to be only distantly related, molecular studies suggested a much closer phylogenetic relationship. As a result, of the molecular data, Kauff and Lutzoni subsumed the Gyalectales into the Ostropales, as the latter name was published earlier (1932 vs. 1986). In 2018, Kraichak and colleagues used a recently developed "temporal phylogenetic" approach to identify temporal bands for specific taxonomic ranks. Base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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