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Leptogium Patwardhanii
''Leptogium patwardhanii'' is a species of corticolous (bark-dwelling) and foliose lichen in the family Collemataceae. Found in India, it was formally described as a new species in 2010 by Archana Dube and Urmila Vasudev Makhija. The type specimen was collected in an evergreen forest in Amboli (Maharashtra) at an elevation of . It is only known to occur at the type locality. Characteristics of ''Leptogium patwardhanii'' include the presence of isidia and the multilayered cortex of the thalline exciple. Its ascospores are muriform (divided into internal chambers by a single vertical septum and 3 to 5 transverse septa), ellipsoid, and measure 20–40 by 11–13 μm. It is classified in the section ''Euleptogium'' of the genus ''Leptogium''. '' Leptogium austroamericanum'' and '' L. cyanescens'' are similar in overall morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines *Morphology (archaeology), study of the shapes or forms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corticolous Lichen
A corticolous lichen is a lichen that grows on bark.Alan Silverside's Lichen Glossary (a-f), Alan Silverside/ref> This is contrasted with lignicolous lichen, which grows on wood that has had the bark stripped from it,Alan Silverside's Lichen Glossary (g-o), Alan Silverside/ref> and saxicolous lichen, which grows on rock.Alan Silverside's Lichen Glossary (p-z), Alan Silverside/ref> Examples of corticolous lichens include the crustose lichen ''Graphis plumierae'', foliose lichen ''Melanohalea subolivacea'' and the fruticose ''Bryoria fuscescens ''Bryoria fuscescens'' is a species of lichen of the family Parmeliaceae. As of July 2021, its conservation status has not been estimated by the IUCN. In Iceland, where it grows as an epiphyte on downy birch stems and branches, it is classified ...''.Náttúrufræðistofnun Íslands celandic Institute of Natural History(1996). Válisti 1: Plöntur.' (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands. References Lichenolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Septum
In biology, a septum (Latin for ''something that encloses''; plural septa) is a wall, dividing a cavity or structure into smaller ones. A cavity or structure divided in this way may be referred to as septate. Examples Human anatomy * Interatrial septum, the wall of tissue that is a sectional part of the left and right atria of the heart * Interventricular septum, the wall separating the left and right ventricles of the heart * Lingual septum, a vertical layer of fibrous tissue that separates the halves of the tongue. *Nasal septum: the cartilage wall separating the nostrils of the nose * Alveolar septum: the thin wall which separates the alveoli from each other in the lungs * Orbital septum, a palpebral ligament in the upper and lower eyelids * Septum pellucidum or septum lucidum, a thin structure separating two fluid pockets in the brain * Uterine septum, a malformation of the uterus * Vaginal septum, a lateral or transverse partition inside the vagina * Intermuscular sep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen Species
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 ( |
Morphology (biology)
Morphology is a branch of biology dealing with the study of the form and structure of organisms and their specific structural features. This includes aspects of the outward appearance (shape, structure, colour, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of the internal parts like bones and organs, i.e. internal morphology (or anatomy). This is in contrast to physiology, which deals primarily with function. Morphology is a branch of life science dealing with the study of gross 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 Friedrich Burdach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptogium Cyanescens
''Leptogium'' is a genus of lichen-forming fungi in the family Collemataceae. It has about 110 species. Species *'' Leptogium acadiense'' *'' Leptogium adnatum'' – South America *''Leptogium andegavense'' *'' Leptogium antarcticum'' *''Leptogium asiaticum'' *'' Leptogium atlanticum'' *'' Leptogium auriculatum'' – South America *'' Leptogium austroamericanum'' *'' Leptogium azureum'' *'' Leptogium biloculare'' *''Leptogium brebissonii'' *'' Leptogium britannicum'' – Europe *'' Leptogium bullatulum'' *'' Leptogium burgessii'' *'' Leptogium chloromelum'' *'' Leptogium cochleatum'' *'' Leptogium compactum'' *'' Leptogium cookii'' *'' Leptogium coralloideum'' *'' Leptogium corticola'' *'' Leptogium crispatellum'' *'' Leptogium cyanescens'' *''Leptogium davidii'' *''Leptogium enkarodes'' – Australia *'' Leptogium epiphyllum'' *'' Leptogium exaratum'' *'' Leptogium faciifictum'' – Australia *'' Leptogium fallax'' *'' Leptogium granulans'' *'' Lept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptogium Austroamericanum
''Leptogium'' is a genus of lichen-forming fungi in the family Collemataceae. It has about 110 species. Species *'' Leptogium acadiense'' *'' Leptogium adnatum'' – South America *''Leptogium andegavense'' *'' Leptogium antarcticum'' *''Leptogium asiaticum'' *''Leptogium atlanticum'' *'' Leptogium auriculatum'' – South America *'' Leptogium austroamericanum'' *''Leptogium azureum'' *'' Leptogium biloculare'' *''Leptogium brebissonii'' *'' Leptogium britannicum'' – Europe *'' Leptogium bullatulum'' *'' Leptogium burgessii'' *''Leptogium chloromelum'' *''Leptogium cochleatum'' *''Leptogium compactum'' *''Leptogium cookii'' *''Leptogium coralloideum'' *''Leptogium corticola'' *''Leptogium crispatellum'' *''Leptogium cyanescens'' *''Leptogium davidii'' *''Leptogium enkarodes'' – Australia *''Leptogium epiphyllum'' *'' Leptogium exaratum'' *'' Leptogium faciifictum'' – Australia *'' Leptogium fallax'' *''Leptogium granulans'' *''Leptogium hibernicu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptogium
''Leptogium'' is a genus of lichen-forming fungi in the family Collemataceae. It has about 110 species. Species *'' Leptogium acadiense'' *'' Leptogium adnatum'' – South America *''Leptogium andegavense'' *'' Leptogium antarcticum'' *''Leptogium asiaticum'' *'' Leptogium atlanticum'' *'' Leptogium auriculatum'' – South America *'' Leptogium austroamericanum'' *'' Leptogium azureum'' *'' Leptogium biloculare'' *'' Leptogium brebissonii'' *'' Leptogium britannicum'' – Europe *'' Leptogium bullatulum'' *'' Leptogium burgessii'' *'' Leptogium chloromelum'' *'' Leptogium cochleatum'' *'' Leptogium compactum'' *'' Leptogium cookii'' *'' Leptogium coralloideum'' *'' Leptogium corticola'' *'' Leptogium crispatellum'' *'' Leptogium cyanescens'' *'' Leptogium davidii'' *'' Leptogium enkarodes'' – Australia *'' Leptogium epiphyllum'' *'' Leptogium exaratum'' *'' Leptogium faciifictum'' – Australia *'' Leptogium fallax'' *'' Leptogium granulans'' *'' L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Section (botany)
In botany, a section ( la, sectio) is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections may in turn be divided into subsections.Article 4 in Sections are typically used to help organise very large genera, which may have hundreds of species. A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making new combinations, i.e. many new binomial names for the species involved. Examples: * ''Lilium'' sectio ''Martagon'' Rchb. are the Turks' cap lilies * ''Plagiochila aerea'' Taylor is the type species of ''Plagiochila'' sect. ''Bursatae'' See also * Section (biology) References Section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometre
The micrometre ( international spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is a unit of length in the International System of Units (SI) equalling (SI standard prefix "micro-" = ); that is, one millionth of a metre (or one thousandth of a millimetre, , or about ). The nearest smaller common SI unit is the nanometre, equivalent to one thousandth of a micrometre, one millionth of a millimetre or one billionth of a metre (). The micrometre is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria, and for grading wool by the diameter of the fibres. The width of a single human hair ranges from approximately 20 to . The longest human chromosome, chromosome 1, is approximately in length. Examples Between 1 μm and 10 μm: * 1–10 μm – length of a typical bacterium * 3–8 μm – width of ... [...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 ellipsoid (r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascospore
An ascus (; ) is the sexual spore-bearing cell produced in ascomycete fungi. Each ascus usually contains eight ascospores (or octad), produced by meiosis followed, in most species, by a mitotic cell division. However, asci in some genera or species can occur in numbers of one (e.g. ''Monosporascus cannonballus''), two, four, or multiples of four. In a few cases, the ascospores can bud off conidia that may fill the asci (e.g. ''Tympanis'') with hundreds of conidia, or the ascospores may fragment, e.g. some ''Cordyceps'', also filling the asci with smaller cells. Ascospores are nonmotile, usually single celled, but not infrequently may be coenocytic (lacking a septum), and in some cases coenocytic in multiple planes. Mitotic divisions within the developing spores populate each resulting cell in septate ascospores with nuclei. The term ocular chamber, or oculus, refers to the epiplasm (the portion of cytoplasm not used in ascospore formation) that is surrounded by the "bourrelet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foliose Lichen
Foliose lichen is one of the morphological classes of lichens, which are complex organisms that arise from the symbiotic relationship between fungi and a photosynthetic partner, typically algae. This partnership allows lichen to live in diverse climates that can range from cold, dry mountains to wet, warm valleys. Lichens develop quite slowly with recorded growth rates of 0.01–27mm/year depending on the species. Their lifespan averages between 30 and 60 years. Lichens have a main body part called the thallus, which is composed of hyphae, and houses the cortex and medulla. The cortex contains the photosynthetic cells while the medulla allows for gas exchange and makes up the bulk of the lichen's thallus. There are three main types of lichens: crustose, foliose, and fruticose. Foliose lichen are characterised by flattened leafy thalli, and an upper and lower cortex. Many have numerous layers, which are stratified, and aid in identifying different types. Foliose lichens attach to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
