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Xanthoparmelia Mougeotii
''Xanthoparmelia mougeotii'' is a species of foliose lichen belonging to the family Parmeliaceae. Description The lichen has a foliose thallus that is usually in diameter. It consists of flattened greenish-grey to yellowish-grey lobes (about 0.2–0.5 mm wide) that are closely attached to the substrate. The lower surface is dark brown to black and has short, simple rhizines that are 0.1–0.2 mm long. Apothecia are rare, with brown discs, and sorediate margins. The predominant secondary compounds are usnic acid, stictic acid, and norstictic acid. Habitat and distribution ''Xanthoparmelia mougeotii'' typically grows on rocks, particularly ones that are smooth, and on a vertical surface. It is often found in scree fields, rock outcrops, cliffs, on boulders, stones, pebbles or siliceous conglomerates. The lichen has a distribution in temperate In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serra De São Mamede
Serra de São Mamede () is a mountain range in Portalegre District, Portugal. This range is named after Saint Mammes. Together with the Serra de Arraiolos, the Serra de São Mamede is one of the few places in the Alentejo region where there might be snow in the winter. This mountain range separates the Tagus Basin, drainage basin of the Tagus to the north from the basin of the Guadiana to the south. The main rivers that have their sources in this range are the Sever River, Sever and Nisa River, Portugal, Nisa, flowing towards the Tagus, as well as the Caia River and its tributary, the Arronches River, Arronches, flowing towards the Guadiana. The town of Marvão is an ancient fortified town located on a ridge of the range. Its emblematic castle is an archetype of medieval castle-building. It dates back to the times of the ''Reconquista'', the reconquest of the Iberian Peninsula from the Moors. Besides Marvão, Portalegre, Portugal, Portalegre, Castelo de Vide, Arronches and Alegret ... [...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 the e ... 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] |
Lichens Of The United States
A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. . Lichens are the lifeform that first brought the term symbiosis (as ''Symbiotismus'') into biological context. Lichens have since been recognized as important actors in nutrient cycling and producers which many higher trophic feeders feed on, such as reindeer, gastropods, nematodes, mites, and springtails. Lichens have properties different from those of their component organisms. They come in man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Of The Caribbean
A lichen ( , ) is a hybrid colony of algae or cyanobacteria living symbiotically among filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. . Lichens are the lifeform that first brought the term symbiosis (as ''Symbiotismus'') into biological context. Lichens have since been recognized as important actors in and producers which many higher trophic feeders feed on, such as reindeer, gastropods, nematodes, mites, and springtails. Lich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichens Described In 1846
A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. . Lichens are the lifeform that first brought the term symbiosis (as ''Symbiotismus'') into biological context. Lichens have since been recognized as important actors in nutrient cycling and producers which many higher trophic feeders feed on, such as reindeer, gastropods, nematodes, mites, and springtails. Lichens have properties different from those of their component organisms. They come in man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xanthoparmelia
''Xanthoparmelia'' (commonly known as green rock shields or rock-shield lichens) is a genus of foliose lichens in the family Parmeliaceae.Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, This genus of lichen is commonly found in the United States, South America, southern Africa, Europe, Australia, and New Zealand. The name means 'golden yellow parmelia'. The photobiont (photosynthetic partner) is ''Trebouxia'' (a genus of green algae). Taxonomy ''Xanthoparmelia'' was originally conceived of as a section of the genus '' Parmelia'' by Brazilian lichenologist Edvard August Vainio in 1890, to accommodate yellow species with narrow lobes. Mason Hale considered that the combination of traits including the presence of the cortical pigment usnic acid, and the microscopic structure of the upper cortex were sufficient criteria to segregate ''Xanthoparmelia'' from the genus ''Parmelia''. He formally transferred 93 species, including the type, '' X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Fungorum
''Index Fungorum'' is an international project to index all formal names (Binomial nomenclature, scientific names) in the fungus Kingdom (biology), kingdom. As of 2015, the project is based at the Royal Botanic Gardens, Kew, one of three partners along with Landcare Research New Zealand Limited, Landcare Research and the Institute of Microbiology, Chinese Academy of Sciences. It is somewhat comparable to the International Plant Names Index (IPNI), in which the Royal Botanic Gardens is also involved. A difference is that where IPNI does not indicate Correct name (botany), correct names, the ''Index Fungorum'' does indicate the status of a name. In the returns from the search page, a currently correct name is indicated in green, while others are in blue (a few, aberrant usages of names are indicated in red). All names are linked to pages giving the correct name, with lists of Synonym (taxonomy), synonyms. ''Index Fungorum'' is one of three nomenclatural repositories recognized b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Xanthoparmelia Species
This is a list of species in the foliose lichen genus ''Xanthoparmelia''. It is the most speciose lichen genus, containing an estimated 822 species as of 2020. The key characteristics of ''Xanthoparmelia'' include the cell walls containing ''Xanthoparmelia''-type lichenan, the pored epicortex, margins without cilia, simple rhizines, small, ellipsoidal ascospore, spores and bifusiform or rarely weakly fusiform or bacilliform conidia. A *''Xanthoparmelia abraxas'' – South Africa *''Xanthoparmelia acrita'' – Africa *''Xanthoparmelia adamantea'' *''Xanthoparmelia adhaerens'' *''Xanthoparmelia adlerae'' – South America *''Xanthoparmelia adpicta'' *''Xanthoparmelia adusta'' *''Xanthoparmelia affinis'' *''Xanthoparmelia africana'' – Africa *''Xanthoparmelia afroincerta'' – Africa *''Xanthoparmelia afrolavicola'' *''Xanthoparmelia agamalis'' *''Xanthoparmelia aggregata'' – Africa *''Xanthoparmelia ahtii'' *''Xanthoparmelia ajoensis'' *''Xanthoparmelia albomac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
