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Bruceomyces
''Bruceomyces'' is a fungal genus in the family Bruceomycetaceae, containing the single species ''Bruceomyces castoris''. Taxonomy A monotypic genus, ''Bruceomyces'' contains the single species ''Bruceomyces castoris''. ''Brucea'' is the original name of ''Bruceomyces'', published by Finnish mycologist Jouko Rikkinen in 2003. Rikkinen and colleagues renamed the genus in 2012 after it was discovered that ''Brucea'' was a junior homonym of a plant genus. The generic name honors lichenologist Bruce McCune (b.1952), who studied western North American lichen flora. The specific epithet ''castoris'' means "beaver", "which play an important role in the ecology of resinicolous fungi in the Pacific Northwest". The family Bruceomycetaceae was circumscribed to contain ''Bruceomyces'' as well as '' Resinogalea'', another resinicolous (resin-loving) fungus. Description Consisting of a rounded protuberance (the capillitium) at the end of a straight or curved thin brownish-black stalk, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bruceomycetaceae
Bruceomycetaceae is a small family (biology), family of fungi in the order Lecanorales. It contains two genus, genera, each of which monotypic, contains a single species. Taxonomy The family was circumscription (taxonomy), circumscribed by lichenologists Jouko Rikkinen and Alexander Roland Schmidt in 2016 to contain the type genus, ''Bruceomyces'', and the genus ''Resinogalea''. Both genera are monotypic–containing a single species. ''Bruceomyces castoris'' was originally described by Rikkinen in 2003 as ''Brucea castoris'', but was transferred to the newly circumscribed ''Bruceomyces'' in 2012 after it was discovered that ''Brucea'' was a junior homonym of a Brucea, plant genus. The genus name ''Bruceomyces'' honours American lichenologist Bruce McCune. ''Resinogalea humboldtensis'' was species description, described as a species new to science in 2016. The authors placed ''Bruceomyces'' and ''Resinogalea'' in the same family due to their similar physical characteristics, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bruce McCune
Bruce Pettit McCune (born 1952) is an American lichenologist, botanist, plant ecologist, and software developer for analysis of ecological data. Biography McCune grew up in Cincinnati. He completed his freshman year of college at Lawrence University in Appleton, Wisconsin, and then transferred to the University of Montana in the autumn of 1971. There he graduated in 1974 with a bachelor's degree in botany. From 1971 to 1974 McCune and his then girlfriend, Patricia S. Muir, spent considerable time on Mount Sentinel, where they investigated lichens, mosses, and other plants. From 1974 to 1975 he travelled and also worked for two summers in Montana for the Bureau of Land Management. From 1976 to 1979 he was a graduate student at the University of Montana, where he graduated with a master's degree. In August 1979 he married Patricia Muir. She graduated in 1975 with a bachelor's degree in botany from the University of Montana. In 1979 the couple matriculated as graduate students at th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Microscope
The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century. Basic optical microscopes can be very simple, although many complex designs aim to improve resolution and sample contrast. The object is placed on a stage and may be directly viewed through one or two eyepieces on the microscope. In high-power microscopes, both eyepieces typically show the same image, but with a stereo microscope, slightly different images are used to create a 3-D effect. A camera is typically used to capture the image (micrograph). The sample can be lit in a variety of ways. Transparent objects can be lit from below and solid objects can be lit with light coming through ( bright field) or around ( dark field) the objective lens. Polar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lecanorales
The Lecanorales are an order of mostly lichen-forming fungi belonging to the class Lecanoromycetes in the division Ascomycota. The order contains 26 families, 269 genera, and 5695 species. Families * Aphanopsidaceae * Biatorellaceae * Brigantiaeaceae * Bruceomycetaceae * Carbonicolaceae * Catillariaceae * Cladoniaceae * Crocyniaceae * Dactylosporaceae * Gypsoplacaceae * Haematommataceae * Lecanoraceae * Malmideaceae * Pachyascaceae * Parmeliaceae * Pilocarpaceae * Psilolechiaceae * Psoraceae * Ramalinaceae * Ramboldiaceae * Scoliciosporaceae * Sphaerophoraceae * Stereocaulaceae * Tephromelataceae * Vezdaeaceae Genera of uncertain placement There are several genera in the Lecanorales that have not been placed with certainty into any family. These are: *''Coronoplectrum'' – 1 sp. *''Ivanpisutia'' – 1 sp. *'' Joergensenia'' – 1 sp. *'' Myochroidea'' – 4 spp. *''Neopsoromopsis ''Neopsoromopsis'' is a genus of lichen-forming fungi of uncertain famili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Alder
''Alnus rubra'', the red alder, is a deciduous broadleaf tree native to western North America (Alaska, Yukon, British Columbia, Washington, Oregon, California, Idaho and Montana). Description Red alder is the largest species of alder in North America and one of the largest in the world, reaching heights of . The official tallest red alder (as of 1979) stands tall in Clatsop County, Oregon (US). The trunks range from in diameter. The bark is mottled, ashy-gray and smooth, often colonized by white lichen and moss. The leaves are ovate, long, with bluntly serrated edges and a distinct point at the end; the leaf margin is revolute, the very edge being curled under, a diagnostic character which distinguishes it from all other alders. The leaves turn yellow in the autumn before falling. The male flowers are dangling reddish catkins long in early spring. Female flowers occur in clusters of (3) 4–6 (8). Female catkins are erect during anthesis, but otherwise pendant. They deve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oregon Maple
''Acer macrophyllum'', the bigleaf maple or Oregon maple, is a large deciduous tree in the genus '' Acer''. It is native to western North America, mostly near the Pacific coast, from southernmost Alaska to southern California. Some stands are also found inland in the foothills of the Sierra Nevada of central California, and a tiny population occurs in central Idaho. Description Bigleaf maple can grow up to tall, but more commonly reaches tall and . The species' current national champion for size is located in Lane County, Oregon. It is tall with a crown spread of , with an average diameter at breast height (dbh) of about . The previous national champion is located in Marion, Oregon, and is tall with a crown spread of , with an average dbh of about . The bark is gray brown, darkening and developing ridges with age. The bigleaf maple has the largest leaves of any maple, typically across with five deeply incised palmate lobes, with the largest running to . The stems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Fir
The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three varieties: coast Douglas-fir (''P. menziesii'' var. ''menziesii''), Rocky Mountain Douglas-fir (''P. menziesii'' var. ''glauca'') and Mexican Douglas-fir (''P. menziesii'' var. ''lindleyana''). Despite its common names, it is not a true fir (genus ''Abies''), spruce (genus ''Picea''), or pine (genus ''Pinus''). It is also not a hemlock; the genus name ''Pseudotsuga'' means "false hemlock". Description Douglas-firs are medium-size to extremely large evergreen trees, tall (although only ''Pseudotsuga menziesii var. menziesii'', common name coast Douglas-firs, reach heights near 100 m) and commonly reach in diameter, although trees with diameters of almost exist. The largest coast Douglas-firs regularly live over 500 years, with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polk County, Oregon
Polk County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 87,433. The county seat is Dallas. The county is named for James Knox Polk, the 11th president of the United States. Polk County is part of the Salem, OR Metropolitan Statistical Area, which is also included in the Portland-Vancouver-Salem, OR- WA Combined Statistical Area. It is located in the Willamette Valley. History The Oregon Provisional Legislature created Polk County from Yamhill District on December 22, 1845, granting to it the entire southwestern portion of present-day Oregon to the California border. County boundaries were periodically changed to reflect the creation of Benton and Lincoln counties. Many other counties were subsequently carved out of these as settlement spread towards the south, leaving Polk County many counties away from its former border with California. The first county seat was a settlement on the north side of Rickreall Cree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaver Dam
A beaver dam or beaver impoundment is a dam built by beavers to create a pond which protects against predators such as coyotes, wolves and bears, and holds their food during winter. These structures modify the natural environment in such a way that the overall ecosystem builds upon the change, making beavers a keystone species and ecosystem engineers. They build prolifically at night, carrying mud and stones with their forepaws and timber between their teeth. Construction A minimum water level of is required to keep the underwater entrance to beaver lodges from being blocked by ice during the winter. In lakes, rivers and large streams with deep enough water, beavers may not even need to build dams, and instead simply live in bank burrows and lodges. If the water is not deep enough to keep beavers safe from predators and their lodge entrances ice-free, beavers build dams.Beavers start construction by diverting the stream to lessen the water's flow pressure. Branches and logs are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Fir
''Abies grandis'' (grand fir, giant fir, lowland white fir, great silver fir, western white fir, Vancouver fir, or Oregon fir) is a fir native to the Pacific Northwest and Northern California of North America, occurring at altitudes of sea level to . It is a major constituent of the Grand Fir/Douglas Fir Ecoregion of the Cascade Range. The tree typically grows to in height, and may be the tallest ''Abies'' species in the world. There are two varieties, the taller coast grand fir, found west of the Cascade Mountains, and the shorter interior grand fir, found east of the Cascades. It was first described in 1831 by David Douglas. It is closely related to white fir. The bark was historically believed to have medicinal properties, and it is popular in the United States as a Christmas tree. Its lumber is a softwood, and it is harvested as a hem fir. It is used in paper-making, as well as construction for framing and flooring, where it is desired for its resistance to splitting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaver
Beavers are large, semiaquatic rodents in the genus ''Castor'' native to the temperate Northern Hemisphere. There are two extant species: the North American beaver (''Castor canadensis'') and the Eurasian beaver (''C. fiber''). Beavers are the second-largest living rodents after the capybaras. They have stout bodies with large heads, long chisel-like incisors, brown or gray fur, hand-like front feet, webbed back feet and flat, scaly tails. The two species differ in the shape of the skull and tail and fur color. Beavers can be found in a number of freshwater habitats, such as rivers, streams, lakes and ponds. They are herbivorous, consuming tree bark, aquatic plants, grasses and sedges. Beavers build dams and lodges using tree branches, vegetation, rocks and mud; they chew down trees for building material. Dams impound water and lodges serve as shelters. Their infrastructure creates wetlands used by many other species, and because of their effect on other organism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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