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Tor Tønsberg
Tor Tønsberg (born 1948 in Oslo) is a Norwegian lichenologist who has made significant contributions to the taxonomy, chemistry, floristics, and phytogeography of lichens and lichenicolous fungi. Throughout his career, he has described more than one hundred species and genera new to science, advancing the knowledge of lichens in Europe and North America. Early life and education Tønsberg grew up in Bekkelagshøgda, Nordstrand, in the eastern part of Oslo. He developed an early interest in nature, frequently visiting the nearby lake Østensjøvannet and the forests of Østmarka with his younger brother Knut. His systematic nature and passion for collecting began in childhood, where he organized a "museum" in the basement of his parents' house. Summers at his family's farm, Myrvang, in Majavatn in Grane Municipality in northern Norway, also played a significant role in fostering his love for the natural world. His grandfather, a frequent companion on hikes and fishing tours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oslo
Oslo ( or ; ) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of 1,064,235 in 2022, and the metropolitan area had an estimated population of in 2021. During the Viking Age, the area was part of Viken. Oslo was founded as a city at the end of the Viking Age in 1040 under the name Ánslo, and established as a ''kaupstad'' or trading place in 1048 by Harald Hardrada. The city was elevated to a bishopric in 1070 and a capital under Haakon V of Norway around the year 1300. Personal unions with Denmark from 1397 to 1523 and again from 1536 to 1814 reduced its influence. After being destroyed by a fire in 1624, during the reign of King Christian IV, a new city was built closer to Akershus Fortress and named Christiania in honour of the king. It became a municipality ('' formannskapsdistrikt'') on 1 January 1838. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Børgefjell National Park
Børgefjell National Park (, ) is an undeveloped national park in Norway, straddling the border between Trøndelag and Nordland counties, along the border with Sweden. The park is undeveloped with few trails or other facilities for visitors. Visitors can hike for extended periods without seeing another person. The park was originally established in 1963, and it was enlarged in 1973 and 2003. It now includes land in the municipalities of Hattfjelldal, Grane, Namsskogan, and Røyrvik. Landscape The landscape varies from dramatic peaks of dark granite and grey mountains with little vegetations, to fertile mountain slopes and marshes. The highest mountain peaks are in the west where the bedrock is primarily dark Børgefjell granite, which gives the landscape its desolate appearance. The highest mountain in the park, ''Kvigtinden'', towering above sea level, is found here. The tall Jetnamsklumpen is the tallest mountain in Trøndelag, and is also located in the park. Other pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctorate
A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. Many universities also award honorary doctorates to individuals deemed worthy of special recognition, either for scholarly work or other contributions to the university or society. History Middle Ages The term ''doctor'' derives from Latin, meaning "teacher" or "instructor". The doctorate (Latin: ''doctoratus'') appeared in medieval Europe as a license to teach Latin (''licentia docendi'') at a university. Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crustose Lichen
Crustose lichens are lichens that form a crust which strongly adheres to the Substrate (biology), substrate (soil, rock, tree bark, etc.), making separation from the substrate impossible without destruction. The basic structure of crustose lichens consists of a cortex (botany), 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 Fungus, 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 d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptogam
A cryptogam (scientific name ''Cryptogamae'') is a plant, in the broad sense of the word, or a plant-like organism that share similar characteristics, such as being multicellular, photosynthetic, and primarily immobile, that reproduces via spores rather than through flowers or seeds. This broader definition can include algae, fungi, and certain bacteria (like cyanobacteria), even though they may belong to different biological kingdoms. Taxonomy The name ''Cryptogamae'' () means "hidden reproduction", meaning non-seed bearing plants. Other names, such as "thallophytes", "lower plants", and "spore plants" have occasionally been used. As a group, Cryptogamae are paired with the Phanerogamae or Spermatophyta, the seed plants. At one time, the cryptogams were formally recognised as a group within the plant kingdom. In his system for classification of all known plants and animals, Carl Linnaeus (1707–1778) divided the plant kingdom into 24 classes, one of which was the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curator
A curator (from , meaning 'to take care') is a manager or overseer. When working with cultural organizations, a curator is typically a "collections curator" or an "exhibitions curator", and has multifaceted tasks dependent on the particular institution and its mission. The term "curator" may designate the head of any given division, not limited to museums. Curator roles include "community curators", "literary curators", " digital curators", and " biocurators". Collections curator A "collections curator", a "museum curator", or a "keeper" of a cultural heritage institution (e.g., gallery, museum, library, or archive) is a content specialist charged with an institution's collections and involved with the interpretation of heritage material including historical artifacts. A collections curator's concern necessarily involves tangible objects of some sort—artwork, collectibles, historic items, or scientific collections. In smaller organizations, a curator may have sole r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rinodina Disjuncta
''Rinodina'' is a genus of lichen-forming fungi in the family Physciaceae. The genus has a widespread distribution and contains about 265 species. It is hypothesized that a few saxicolous species common to dry regions of western North America, southern Europe, North Africa and central Asia may date back 240 million years to the Middle Triassic The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t .... See also List of ''Rinodina'' species. References Caliciales Caliciales genera Lichen genera Taxa named by Erik Acharius Taxa described in 1810 {{Caliciales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ramboldia Subcinnabarina
''Ramboldia'' is a genus of lichen-forming fungi in the family Ramboldiaceae. The genus was circumscribed in 1994 by Gintaras Kantvilas and John Alan Elix. It was emended in 2008 by the inclusion of '' Pyrrhospora'' species containing the anthraquinone russulone in their apothecia and having a prosoplectenchymatous exciple. The family Ramboldiaceae was circumscribed in 2014 to contain the genus. The genus name of ''Ramboldia'' is in honour of Gerhard Walter Rambold (b.1956), a German botanist (Lichenology and Mycology). He was also interested in Zoology and was a professor at Munich and Bayreuth. He was a colleague of the authors, Kantvilas and Elix. Species *''Ramboldia amagiensis'' *'' Ramboldia amarkantakana'' *'' Ramboldia arandensis'' *'' Ramboldia atromarginata'' *''Ramboldia aurantiaca'' *''Ramboldia aurea'' *''Ramboldia badia'' – Brazil *''Ramboldia blastidiata'' *''Ramboldia blochiana'' – North America, Central America, South America, West Indies *''Ramb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spruce
A spruce is a tree of the genus ''Picea'' ( ), a genus of about 40 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal ecosystem, boreal (taiga) regions of the Northern hemisphere. ''Picea'' is the sole genus in the subfamily Piceoideae. Spruces are large trees, from about 20 to 60 m (about 60–200 ft) tall when mature, and have Whorl (botany), whorled branches and cone (geometry), conical form. Spruces can be distinguished from other Genus, genera of the family Pinaceae by their pine needle, needles (leaves), which are four-sided and attached singly to small persistent peg-like structures (pulvini or sterigmata) on the branches, and by their seed cone, cones (without any protruding bracts), which hang downwards after they are pollinated. The needles are shed when 4–10 years old, leaving the branches rough with the retained pegs. In other similar genera, the branches are fairly smooth. Spruce are used as food pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thin-layer Chromatography
Thin-layer chromatography (TLC) is a chromatography technique that separates components in non-volatile mixtures. It is performed on a TLC plate made up of a non-reactive solid coated with a thin layer of adsorbent material. This is called the stationary phase. The sample is deposited on the plate, which is eluted with a solvent or solvent mixture known as the mobile phase (or eluent). This solvent then moves up the plate via capillary action. As with all chromatography, some compounds are more attracted to the mobile phase, while others are more attracted to the stationary phase. Therefore, different compounds move up the TLC plate at different speeds and become separated. To visualize colourless compounds, the plate is viewed under UV light or is stained.Jork, H., Funk, W., Fischer, W., Wimmer, H. (1990): Thin-Layer Chromatography: Reagents and Detection Methods, Volume 1a, VCH, Weinheim, Testing different stationary and mobile phases is often necessary to obtain well-defined an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hildur Krog
Hildur Krog (22 March 1922 – 25 August 2014) was a Norwegian lichenologist and university professor who made contributions to the field of lichenology, particularly in the areas of lichen taxonomy (biology), taxonomy, chemotaxonomy, and floristics. Biography Hildur Krog was born on 22 March 1922 in Søre Simostrada, Modum, Norway. She received her early education at the landgymnas (rural high school) in Voss, Hordaland. During World War II, in late April 1940, she experienced German airstrike, air raids on Voss and fled to the mountains with her sister, where they reportedly nearly starved. In 1941, she completed her high school examination (Abitur) and began studying biology at the University of Oslo. In 1946, she returned to her studies after the Norwegian scholar Eilif Dahl, who had secured a position as a university lecturer in Oslo, came back from England. Dahl had been a member of a Norwegian resistance movement, Norwegian resistance group during the war and had been fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floristic "?'' ...
{{Short pages monitor ''Did you mean: "Floristics Floristics is the study of plants of geographical regions. It is a branch of phytogeography, which technically makes it a branch of botany, geography, and a subbranch of biogeography. Harvard University has a history of research with early contr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
