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Scythioria Durietzii
''Scythioria'' is a small genus of lichen-forming fungi in the family Teloschistaceae. It comprises three species. Species in this genus are found primarily in the Palaearctic realm, occurring in Eurasia and North Africa. They typically grow on the bark of broad-leaved trees in forested areas, as well as on plant debris, soil, and small shrubs in steppe and semi-desert environments. They are occasionally found on rock surfaces. The body (thallus) of species in this genus forms a crust-like (crustose) growth that either appears as small islands () or becomes embedded within tree bark or rock surfaces. The colour ranges from greenish-white to bright yellow. ''Scythioria'' species typically produce abundant powdery reproductive structures called soredia, and have a thin outer layer () made up of rounded cells that is often not well-developed. Taxonomy Genus ''Scythioria'' was circumscribed in 2014 by Sergey Kondratyuk and colleagues. It is placed in the family Teloschistaceae. T ... [...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] |
Sergey Kondratyuk
Sergey Yakovlevich Kondratyuk () (born 17 May 1959) is a Ukrainian botanist specialising in lichenology. His research deals with the taxonomy, floristics, ecology and geography of lichens and lichenicolous fungi. He has worked at the for more than 40 years. In 2014 Kondratyuk was awarded the State Prize of Ukraine in Science and Technology. Early life and education Kondratyuk was born in the Kirovohrad region, in Ulyanovsk. After graduating from school in 1976 he became a student of the Faculty of Biology at Kyiv State University. He specialized in the Department of Lower Plants. While still a student, Kondratyuk started to study lichens under the guidance of O.B. Bloom. Then began his career at the Institute of Botany (1979), as a senior technician and later an engineer in the Department of Algology and Lichenology. He continued his career as a graduate student of the institute (1981–1984). After successfully defending his dissertation entitled "Lichens of the Dniepe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavoplaca
''Flavoplaca'' is a genus of crust-like or scaly lichens in the family Teloschistaceae. It has about 30 species with a mostly Northern Hemisphere distribution. Taxonomy The genus was circumscribed in 2013 by Ulf Arup, Patrik Frödén and Ulrik Søchting, with '' Flavoplaca citrina'' as the type species. The genus formed a well-supported clade in molecular phylogenetics analysis. ''Flavoplaca'' species are closely related to '' Calogaya'' species that have lobes. There are other genera with roughly similar morphological features as ''Flavoplaca'' (examples include '' Polycauliona'', '' Orientophila'', '' Sirenophila'', and '' Villophora''), but they are genetically different and have different distributions. Arup and colleagues included 26 species in the genus; most were originally named as members of the genera '' Caloplaca'' or ''Lecanora''. Recent molecular studies have continued to refine the taxonomy of the genus. In 2024, three additional species were transferred to '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leproplaca
''Leproplaca'' is a genus of lichen-forming fungi in the family Teloschistaceae. Its exhibits a leprose growth form, where the thallus consists primarily of asexual propagules called soredia Soredia are common reproduction, reproductive structures of lichens. Lichens asexual reproduction, reproduce asexually by employing simple fragmentation and production of soredia and isidia. Soredia are powdery propagules composed of fungus, fung .... Species *'' Leproplaca chrysodeta'' *'' Leproplaca cirrochroa'' *'' Leproplaca obliterans'' *'' Leproplaca proteus'' *'' Leproplaca xantholyta'' References Teloschistales Teloschistales genera Lichen genera Taxa described in 1883 Taxa named by William Nylander (botanist) {{Teloschistales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morphology (biology)
Morphology (from Ancient Greek μορφή (morphḗ) "form", and λόγος (lógos) "word, study, research") is the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, color, pattern, size), as well as the form and structure of internal parts like bones and organs, i.e., anatomy. This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of the overall structure of an organism or taxon and its component parts. History The etymology of the word "morphology" is from the Ancient Greek (), meaning "form", and (), meaning "word, study, research". While the concept of form in biology, opposed to function, dates back to Aristotle (see Aristotle's biology), the field of morphology was developed by Johann Wolfgang von Goethe (1790) and independently by the German anatomist and physiologist Karl Fried ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecanoromycetes
Lecanoromycetes is the largest class of lichenized fungi. It belongs to the subphylum Pezizomycotina in the phylum Ascomycota. The asci (spore-bearing cells) of the Lecanoromycetes most often release spores by rostrate dehiscence. The group is monophyletic In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent co ... (composed only of all the descendants of a common ancestor). Genera of uncertain placement There are several genera in the Lecanoromycetes that have not been placed into any order or family. These are: *'' Argopsis'' – 1 sp. *'' Ascographa'' – 1 sp. *'' Bartlettiella'' – 1 sp. *'' Bouvetiella'' – 1 sp. *'' Buelliastrum'' – 2 spp. *'' Haploloma'' – 1 sp. *'' Hosseusia'' – 3 spp. *'' Korfiomyces'' – 1 sp. *'' Maronella'' – 1 sp. *'' Notolecidea'' – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by (of uncertain family), (of uncertain suborder), (of uncertain order) and similar terms. Examples * The fossil plant ''Paradinandra, Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil ''Gluteus minimus (fossil), Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Boc ... [...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] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of Genus, genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycauliona
''Polycauliona'' is a genus of lichen-forming fungi in the family Teloschistaceae. Species *'' Polycauliona antarctica'' *'' Polycauliona ascendens'' *'' Polycauliona austrogeorgica'' *'' Polycauliona bolacina'' *'' Polycauliona brattiae'' *'' Polycauliona candelaria'' *'' Polycauliona charcotii'' *''Polycauliona citrina'' *'' Polycauliona comandorica'' – Commander Islands *'' Polycauliona coralligera'' *''Polycauliona coralloides'' *''Polycauliona fruticulosa'' *''Polycauliona impolita'' *''Polycauliona inconspecta'' *''Polycauliona johnstonii'' *''Polycauliona kaernefeltii'' *''Polycauliona leechii'' *''Polycauliona luctuosa'' *''Polycauliona murrayi'' *''Polycauliona phryganitis'' *'' Polycauliona pollinarioides'' *''Polycauliona polycarpa ''Polycauliona polycarpa'' is a species of corticolous lichen, corticolous (bark-dwelling), fruticose lichen in the family Teloschistaceae. It was first species description, formally described by German botanist Geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or Extant taxon, extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed ''monophyletic'' (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming Taxon, taxa that are not clades; that is, taxa that are not Monophyly, monophyletic. Some of the relationships between organisms that the molecul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Type Species
In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological Type (biology), type wiktionary:en:specimen, specimen (or specimens). Article 67.1 A similar concept is used for suprageneric groups and called a type genus. In botanical nomenclature, these terms have no formal standing under the International Code of Nomenclature for algae, fungi, and plants, code of nomenclature, but are sometimes borrowed from zoological nomenclature. In botany, the type of a genus name is a specimen (or, rarely, an illustration) which is also the type of a species name. The species name with that type can also be referred to as the type of the genus name. Names of genus and family ranks, the various subdivisions of those ranks, and some higher-rank names based on genus names, have suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
