72-677: Blue Mountains National Forest was established as the Blue Mountains Forest Reserve by the U.S. Forest Service in Oregon on March 15, 1906, with 2,675,620 acres (10,827.8 km) from portions of the Baker City Forest Reserve and other lands. It became a National Forest on March 4, 1907. On March 2, 1908 Maury Mountain Forest Reserve was added to Blue Mountains, and on July 1, 1911,
144-486: A tectonic plate that poses a continued threat of volcanic activity and earthquakes in the region. The most recent major activity was the 1700 Cascadia earthquake . Washington 's Mount St. Helens erupted in 1980 , an event visible from northern Oregon and affecting some areas there. The Columbia River, which forms much of Oregon's northern border, also played a major role in the region's geological evolution, as well as its economic and cultural development. The Columbia
216-581: A "g". Another possible source is the Spanish word oregano , which refers to a plant that grows in the southern part of the region. It is also possible that the area around the Columbia River was named after a stream in Spain called "Arroyo del Oregón", located in the province of Ciudad Real . Another early use of the name, spelled Ouragon , was by Major Robert Rogers in a 1765 petition to
288-583: A parent fungus in Ontario , Canada, then grew over millennia into the 21st century to a mass of 440 tons (4 x 10 kg), making it the equivalent in weight of 3 blue whales . By comparison of acreage, the Michigan A. ostoyae covers only 38% of the estimated land area of the Oregon "humongous fungus" at 3.5 square miles (9.1 km ), (2,240 acres (910 ha) which may weigh as much as 35,000 tons. It
360-510: A probate government was proposed. Doctor Ira Babcock of Jason Lee 's Methodist Mission was elected supreme judge. Babcock chaired two meetings in 1842 at Champoeg , (halfway between Lee's mission and Oregon City ), to discuss wolves and other animals of contemporary concern. These meetings were precursors to an all-citizen meeting in 1843, which instituted a provisional government headed by an executive committee made up of David Hill , Alanson Beers , and Joseph Gale . This government
432-622: A railroad in 1851 from St. Helens, through the Cornelius pass and across Washington County to the city of Lafayette, which was at the time the big town of the Willamette Valley. In December 1844, Oregon passed its first black exclusion law , which prohibited African Americans from entering the territory while simultaneously prohibiting slavery . Slave owners who brought their slaves with them were given three years before they were forced to free them. Any African Americans in
504-586: A refuge from disputes over slavery, Oregon had a "whites only" clause in its original state Constitution. At the outbreak of the American Civil War , regular U.S. troops were withdrawn and sent east to aid the Union . Volunteer cavalry recruited in California were sent north to Oregon to keep peace and protect the populace. The First Oregon Cavalry served until June 1865. Beginning in the 1880s,
576-551: A site near Crystal Falls, Michigan – covers 91 acres (0.37 km ; 0.142 sq mi), was found to have originated from a parent fungus in Ontario, Canada. A tree is diagnosed with this parasitic fungus once the following characteristics are identified: A. ostoyae may be confused with Mottled rot ( Pholiota limonella ). It has similar mushrooms, but only if mycelial fans are not present. Dead and diseased trees usually occur in disease centers, which appear as openings in
648-550: A água , Oregon. Yet another account, endorsed as the "most plausible explanation" in the book Oregon Geographic Names , was advanced by George R. Stewart in a 1944 article in American Speech . According to Stewart, the name came from an engraver's error in a French map published in the early 18th century, on which the Ouisiconsink (Wisconsin) River was spelled " Ouaricon-sint ", broken on two lines with
720-480: Is considered a single organism, it is one of the largest known organisms in the world by area, only knowingly rivalled by a colony of Posidonia australis on the Australian seabed that measures 200 square kilometres (77 sq mi; 49,000 acres), and rivals the aspen grove " Pando " as the known organism with the highest living biomass. Another "humongous fungus" – a specimen of Armillaria gallica found at
792-548: Is currently the world's largest single living organism. The disease is of particular interest to forest managers, as the species is highly pathogenic to a number of commercial softwoods, notably Douglas-fir ( Pseudotsuga menziesii ), true firs ( Abies spp.), pine trees ( Pinus ), and Western Hemlock ( Tsuga heterophylla ). A commonly prescribed treatment is the clear cutting of an infected stand followed by planting with more resistant species such as Western redcedar ( Thuja plicata ) or deciduous seedlings. Pathogenicity
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#1732794393124864-539: Is evidence supporting inhabitants in the region at least 15,000 years ago. By 8000 BC, there were settlements throughout the state, with populations concentrated along the lower Columbia River, in the western valleys, and around coastal estuaries. During the prehistoric period , the Willamette Valley region was flooded after the collapse of glacial dams from then Lake Missoula , located in what would later become Montana . These massive floods occurred during
936-461: Is in this region of the state. Typical of a western state, Oregon is home to a unique and diverse array of wildlife. Roughly 60 percent of the state is covered in forest, while the areas west of the Cascades are more densely populated by forest, making up around 80 percent of the landscape. Some 60 percent of Oregon's forests are within federal land. Oregon is the top timber producer of
1008-473: Is now allowed in Oregon, gas stations are not required to offer it and many currently do not. New Jersey is the only state remaining where self serve gas stations are not allowed. Oregon is 295 miles (475 km) north to south at longest distance, and 395 miles (636 km) east to west. With an area of 98,381 square miles (254,810 km ), Oregon is slightly larger than the United Kingdom . It
1080-730: Is one of North America's largest rivers, and one of two rivers to cut through the Cascades (the Klamath River in southern Oregon is the other). About 15,000 years ago, the Columbia repeatedly flooded much of Oregon during the Missoula Floods ; the modern fertility of the Willamette Valley is largely the result. Plentiful salmon made parts of the river, such as Celilo Falls , hubs of economic activity for thousands of years. Today, Oregon's landscape varies from rain forest in
1152-428: Is possibly the largest living organism on Earth by mass, area, and volume – this contiguous specimen covers 3.7 square miles (2,400 acres; 9.6 km ) and is colloquially called the " Humongous fungus ". Approximations of the land area occupied by the "Humongous fungus" are 3.5 square miles (9.1 km ) (2,240 acres (910 ha)), and it possibly weighs as much as 35,000 tons (approximately 31,500 tonnes), making it
1224-487: Is probable some still move into eastern Oregon from Idaho. Oregon is home to what is considered the largest single organism in the world, an Armillaria solidipes fungus beneath the Malheur National Forest of eastern Oregon. Oregon has several National Park System sites , including Crater Lake National Park in the southern part of the Cascades, John Day Fossil Beds National Monument east of
1296-568: Is required to establish the efficacy of this treatment. Another more expensive alternative to changing species is to remove diseased stumps and trees from the site by pushing them out with a bulldozer. The air will dry and kill the fungus. Any small roots left underground will decay before they can reinfect the new seedlings, so it is not necessary to burn the stumps. After stump removal, any species may be planted. The removal of stumps (stumping) has been used to prevent contact between infected stumps and newer growth resulting in lower infection rates. It
1368-460: Is rounded down phonetically, from Ouve água —Oragua, Or-a-gon, Oregon—given probably by the same Portuguese navigator that named the Farallones after his first officer, and it literally, in a large way, means cascades: "Hear the waters." You should steam up the Columbia and hear and feel the waters falling out of the clouds of Mount Hood to understand entirely the full meaning of the name Ouve
1440-405: Is seen to be greater in coastal conifers. Although conifers along the coastal regions show a lower rate of mortality against the root disease, infections can be much worse. Despite differences in how infections occur between these two regions, infections are generally established by rhizomorph strands, and pathogenicity is correlated to rhizomorph production. Armillaria ostoyae is mostly common in
1512-486: Is seen to differ among trees of varying age and location. Younger conifer trees at age 10 and below are more susceptible to infection leading to mortality, with an increased chance of survival against the fungus where mortality can become rare by age 20. While mortality among older conifers is less likely to occur, this does happen, however, in forests with dryer climates. The pathogenicity of Armillaria ostoyae appears to be more common in interior stands, but its virulence
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#17327943931241584-532: Is the ninth largest state in the U.S. Oregon's highest point is the summit of Mount Hood, at 11,249 feet (3,429 m), and its lowest point is the sea level of the Pacific Ocean along the Oregon Coast. Oregon's mean elevation is 3,300 feet (1,006 m). Crater Lake National Park , the state's only national park, is the site of the deepest lake in the U.S. at 1,943 feet (592 m). Oregon claims
1656-484: Is the state's highest point. Oregon's only national park, Crater Lake National Park , comprises the caldera surrounding Crater Lake , the deepest lake in the U.S. The state is also home to the single largest organism in the world, Armillaria ostoyae , a fungus that runs beneath 2,200 acres (8.9 km ) of the Malheur National Forest . Oregon's economy has historically been powered by various forms of agriculture, fishing, logging, and hydroelectric power. Oregon
1728-606: Is the third-most populous city in Oregon, with 175,535 residents. Portland , with 652,503, ranks as the 26th among U.S. cities. The Portland metropolitan area , which includes neighboring counties in Washington, is the 25th largest metro area in the nation, with a population of 2,512,859. Oregon is also one of the most geographically diverse states in the U.S., marked by volcanoes, abundant bodies of water, dense evergreen and mixed forests, as well as high deserts and semi-arid shrublands . At 11,249 feet (3,429 m), Mount Hood
1800-605: Is the top lumber producer of the contiguous U.S. , with the lumber industry dominating the state's economy during the 20th century. Technology is another one of Oregon's major economic forces, beginning in the 1970s with the establishment of the Silicon Forest and the expansion of Tektronix and Intel . Sportswear company Nike, Inc. , headquartered in Beaverton , is the state's largest public corporation with an annual revenue of $ 46.7 billion. The origin of
1872-442: Is unknown if the lower infection rates will persist as roots of young trees extend closer to the original inoculate from the preceding stand. The most important control measure after planting is to manage for reduced tree stress. This includes regulating species composition , maintaining biological diversity, and reducing the chances for insect pest buildup. Mixed-species forests are more resistant to insect defoliation, and also slow
1944-562: The -sint below, so there appeared to be a river flowing to the west named " Ouaricon ". According to the Oregon Tourism Commission , present-day Oregonians / ˌ ɒr ɪ ˈ ɡ oʊ n i ə n z / pronounce the state's name as "or-uh-gun, never or-ee-gone". After being drafted by the Detroit Lions in 2002, former Oregon Ducks quarterback Joey Harrington distributed "Orygun" stickers to members of
2016-789: The Columbia Plateau , the High Desert , and the Blue Mountains . Oregon lies in two time zones . Most of Malheur County is in the Mountain Time Zone , while the rest of the state lies in the Pacific Time Zone . Western Oregon's mountainous regions, home to three of the most prominent mountain peaks of the U.S. including Mount Hood, were formed by the volcanic activity of the Juan de Fuca Plate ,
2088-648: The D River as the shortest river in the world, though the state of Montana makes the same claim of its Roe River . Oregon is also home to Mill Ends Park (in Portland), the smallest park in the world at 452 square inches (0.29 m ). Oregon is split into eight geographical regions. In Western Oregon : Oregon Coast (west of the Coast Range ), the Willamette Valley, Rogue Valley , Cascade Range and Klamath Mountains ; and in Central and Eastern Oregon :
2160-624: The Interior Cedar Hemlock biogeoclimatic zone. It is both present in the interior where it is more common as well as along the coast. A mushroom of this type in the Malheur National Forest in the Strawberry Mountains of eastern Oregon, was found to be the largest fungal colony in the world, spanning an area of 3.5 square miles (2,200 acres; 9.1 km ). This organism is estimated to be some 8,000 years old and may weigh as much as 35,000 tons. If this colony
2232-934: The Kingdom of Great Britain . The term referred to the then-mythical River of the West (the Columbia River). By 1778, the spelling had shifted to Oregon . Rogers wrote: ... from the Great Lakes towards the Head of the Mississippi, and from thence to the River called by the Indians Ouragon ... One suggestion is that this name comes from the French word ouragan ("windstorm" or "hurricane"), which
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2304-597: The Lewis and Clark and Astor Expeditions. Few stayed permanently such as Étienne Lussier, often referred to as the first "European" farmer in the state of Oregon. Evidence of the French Canadian presence can be found in numerous names of French origin such as Malheur Lake , the Malheur , Grande Ronde , and Deschutes Rivers , and the city of La Grande . Furthermore, many of the early pioneers first came out West with
2376-503: The Nomenclature Committee for Fungi . This fungus, like most parasitic fungi, reproduces sexually. The fungi begin life as spores , released into the environment by a mature mushroom. Armillaria ostoyae has a white spore print . There are two mating types for spores (not male and female but similar in effect). Spores can be dispersed by environmental factors such as wind, or they can be redeposited by an animal. Once
2448-763: The North West Company and the Hudson's Bay Company before heading South of the Columbia for better farmland as the fur trade declined. French Prairie by the Willamette River and French Settlement by the Umpqua River are known as early mixed ancestry settlements. The Lewis and Clark Expedition traveled through northern Oregon also in search of the Northwest Passage . They built their winter fort in 1805–1806 at Fort Clatsop , near
2520-568: The Snake River delineates much of its eastern boundary with Idaho . The 42° north parallel delineates the southern boundary with California and Nevada . The western boundary is formed by the Pacific Ocean . Oregon has been home to many indigenous nations for thousands of years. The first European traders, explorers, and settlers began exploring what is now Oregon's Pacific coast in the early to mid-16th century. As early as 1564,
2592-704: The Spanish began sending vessels northeast from the Philippines , riding the Kuroshio Current in a sweeping circular route across the northern part of the Pacific. In 1592, Juan de Fuca undertook detailed mapping and studies of ocean currents in the Pacific Northwest, including the Oregon coast as well as the strait now bearing his name. The Lewis and Clark Expedition traversed Oregon in
2664-432: The forced relocation of the native population to Indian reservations in Oregon . The first Oregon proposition for a railroad in Oregon was made in 1850 by H. M. Knighton, the original owner of the townsite of St. Helens . Knighton asserted that this would fulfill his township's belief that it should be the supreme metropolitan seaport in that area upon the Columbia River, as opposed to Portland. He suggested building
2736-519: The last glacial period and filled the valley with 300 to 400 feet (91 to 122 m) of water. By the 16th century, Oregon was home to many Native American groups, including the Chinook , Coquille (Ko-Kwell), Bannock , Kalapuya , Klamath , Klickitat , Molala , Nez Perce , Shasta , Takelma , Umatilla , and Umpqua . The first Europeans to visit Oregon were Spanish explorers led by Juan Rodríguez Cabrillo , who sighted southern Oregon off
2808-410: The shoestrings – also known as rhizomorphs. These rhizomorphs allow the fungus to obtain nutrients over distances. These are also the main factors to its pathogenicity. As the fruiting body continues to grow and obtain nutrients, it forms into a mature mushroom. Armillaria ostoyae in particular grows wide and thin sheet-like plates radiating from the stem which is known as its gills . The gills hold
2880-453: The Cascades, Lewis and Clark National Historical Park on the north coast, and Oregon Caves National Monument near the south coast. Other areas that were considered for potential national park status in the 20th century include the southern Oregon Coast, Mount Hood, and Hells Canyon to the east. Armillaria ostoyae Armillaria ostoyae (synonym Armillaria solidipes ) is a species of fungus ( mushroom ), pathogenic to trees, in
2952-548: The Coast Range to barren desert in the southeast, which still meets the technical definition of a frontier . Oregon's geographical center is further west than any of the other 48 contiguous states (although the westernmost point of the lower 48 states is in Washington). Central Oregon 's geographical features range from high desert and volcanic rock formations resulting from lava beds . The Oregon Badlands Wilderness
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3024-597: The Hudson's Bay Company, reversed the Hudson's Bay Company's long-standing policy of discouraging settlement because it interfered with the lucrative fur trade. He directed that some 200 Red River Colony settlers be relocated to HBC farms near Fort Vancouver, (the James Sinclair expedition), in an attempt to hold Columbia District. Starting in 1842–1843, the Oregon Trail brought many new American settlers to
3096-557: The Oregon Country. Oregon's boundaries were disputed for a time, contributing to tensions between the U.K. and the U.S., but the border was defined peacefully in the 1846 Oregon Treaty . The border between the U.S. and British North America was set at the 49th parallel . The Oregon Territory was officially organized on August 13, 1848. Settlement increased with the Donation Land Claim Act of 1850 and
3168-741: The Pacific Northwest was particularly affected by the 1973 oil crisis , with Oregon suffering a substantial shortage. In 1972, the Oregon Beverage Container Act of 1971, popularly called the Bottle Bill, became the first law of its kind in the United States. The Bottle Bill system in Oregon was created to control litter. In practice, the system promotes recycling, not reusing, and the collected containers are generally destroyed and made into new containers. Ten states currently have similar laws. In 1994, Oregon became
3240-779: The Pacific coast in 1543. Sailing from Central America on the Golden Hind in 1579 in search of the Strait of Anian during his circumnavigation of the Earth , the English explorer and privateer Sir Francis Drake briefly anchored at South Cove, Cape Arago , just south of Coos Bay , before sailing for what is now California. Martín de Aguilar , continuing separately from Sebastián Vizcaíno 's scouting of California, reached as far north as Cape Blanco and possibly to Coos Bay in 1603. Exploration continued routinely in 1774, starting with
3312-407: The West, although the periodic fluctuations in the U.S. building industry have hurt the state's economy on multiple occasions. Portland, in particular, experienced a population boom between 1900 and 1930, tripling in size; the arrival of World War II also provided the northwest region of the state with an industrial boom, where Liberty ships and aircraft carriers were constructed. During the 1970s,
3384-550: The abundance of fur-bearing animals in the area. Also in 1811, New Yorker John Jacob Astor financed the establishment of Fort Astoria at the mouth of the Columbia River as a western outpost to his Pacific Fur Company ; this was the first permanent European settlement in Oregon. In the War of 1812 , the British gained control of all Pacific Fur Company posts. The Treaty of 1818 established joint British and American occupancy of
3456-507: The bark or between trees in the form of black rhizomorphs ("shoestrings"). In most areas of North America , Armillaria ostoyae can be separated from other species by its physical features: cream -brown colors, prominent cap scales, and a well-developed stem ring distinguish it from other Armillaria . Like several other Armillaria, the mycelium of Armillaria ostoyae can display bioluminescence, resulting in foxfire . Armillaria ostoyae grows and spreads primarily underground, such that
3528-599: The bulk of the organism is not visible from the surface. In the autumn, the subterranean parts of the organism bloom "honey mushrooms" as surface fruits. Low competition for land and nutrients often allow this fungus to grow to huge proportions, and it possibly covers more total geographical area than any other single living organism. A spatial genetic analysis estimated that an individual specimen of A. ostoyae growing over 91 acres (37 ha) in northern Michigan , United States, weighs 440 tons (4 x 10 kg). Another specimen in northeastern Oregon's Malheur National Forest
3600-796: The canopy. GPS tracking can aid in the monitoring of these areas. However, sometimes distinct centers will be absent and diseased trees are scattered throughout the stand. Armillaria can remain viable in stumps for 50 years. Chemical treatments do not eradicate the fungus entirely, and they are not cost-effective. The most frequent and effective approach to managing root disease problems is to attempt to control them at final harvest by replanting site-suited tree species that are disease tolerant. In eastern Washington that typically means replacing Douglas-fir or true fir stands with ponderosa pine , western larch , western white pine , lodgepole pine , western red cedar , alder , or spruce . Species susceptibility varies somewhat from location to location. All trees in
3672-470: The cooler regions of the northern hemisphere. In North America, this fungus is found on host coniferous trees in the forests of British Columbia and the Pacific Northwest . It also grows in parts of Asia. While Armillaria ostoyae is distributed throughout the different biogeoclimatic zones of British Columbia, the root disease causes the greatest problem in the interior parts of the region in
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#17327943931243744-403: The disease center as well as uninfected trees within 50 feet (15 m) should be cut. No tree from a highly susceptible species should be planted within 100 feet (30 m) of a disease center. The use of another fungus, Hypholoma fasciculare has been shown in early experiments to competitively exclude Armillaria ostoyae in both field and laboratory conditions, but further experimentation
3816-594: The early 1800s, and the first permanent European settlements in Oregon were established by fur trappers and traders. In 1843, an autonomous government was formed in the Oregon Country , and the Oregon Territory was created in 1848. Oregon became the 33rd state of the U.S. on February 14, 1859. Today, with 4.2 million people over 98,000 square miles (250,000 km ), Oregon is the ninth largest and 27th most populous U.S. state. The capital, Salem ,
3888-473: The expedition of the frigate Santiago by Juan José Pérez Hernández , and the coast of Oregon became a valuable trade route to Asia. In 1778, British captain James Cook also explored the coast. French Canadians , Scots , Métis , and other continental natives (e.g. Iroquois ) trappers arrived in the late 18th and early 19th centuries, soon to be followed by Catholic clergy. Some traveled as members of
3960-482: The family Physalacriaceae . In the western United States, it is the most common variant of the group of species under the name Armillaria mellea . A. ostoyae is common on both hardwood and conifer wood in forests west of the Cascade Range in Oregon , United States. It has decurrent gills and the stipe has a ring. The mycelium invades the sapwood and is able to disseminate over great distances under
4032-499: The first U.S. state to legalize physician-assisted suicide through the Oregon Death with Dignity Act . A measure to legalize recreational use of marijuana in Oregon was approved on November 4, 2014, making Oregon only the second state at the time to have legalized gay marriage , physician-assisted suicide, and recreational marijuana. Self service gasoline was banned in Oregon from 1951 until August 2023. Although self-serve
4104-570: The forest was divided among Whitman , Malheur , Umatilla and Deschutes National Forests and the name was discontinued. Oregon Oregon ( / ˈ ɒr ɪ ɡ ən , - ɡ ɒ n / ORR -ih-ghən , -gon ) is a state in the Pacific Northwest region of the United States. It is a part of the Western U.S. , with the Columbia River delineating much of Oregon's northern boundary with Washington , while
4176-487: The growth of railroads expanded the state's lumber , wheat , and other agricultural markets, and the rapid growth of its cities. Due to the abundance of timber and waterway access via the Willamette River, Portland became a major force in the lumber industry of the Pacific Northwest , and quickly became the state's largest city. It would earn the nickname "Stumptown", and would later become recognized as one of
4248-496: The lower 48 states. Moose have not always inhabited the state but came to Oregon in the 1960s; the Wallowa Valley herd numbered about 60 as of 2013 . Gray wolves were extirpated from Oregon around 1930 but have since found their way back; most reside in northeast Oregon, with two packs living in the south-central part. Although their existence in Oregon is unconfirmed, reports of grizzly bears still turn up, and it
4320-608: The media as a reminder of how to pronounce the name of his home state. The stickers are sold by the University of Oregon Bookstore . While there is considerable evidence that Paleo-Indians inhabited the region, the oldest evidence of habitation in Oregon was found at Fort Rock Cave and the Paisley Caves in Lake County . Archaeologist Luther Cressman dated material from Fort Rock to 13,200 years ago, and there
4392-415: The most dangerous port cities in the United States due to racketeering and illegal activities at the turn of the 20th century. In 1902, Oregon introduced direct legislation by the state's citizens through initiatives and referendums , known as the Oregon System . On May 5, 1945, six civilians were killed by a Japanese balloon bomb that exploded on Gearhart Mountain near Bly . They remained
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#17327943931244464-466: The mouth of the Columbia River, staying at the encampment from December until March. British explorer David Thompson also conducted overland exploration. In 1811, while working for the North West Company, Thompson became the first European to navigate the entire Columbia River. Stopping on the way, at the junction of the Snake River, he posted a claim to the region for Great Britain and the North West Company. Upon returning to Montreal , he publicized
4536-400: The only people on American soil whose deaths were attributed to an enemy balloon bomb explosion during World War II . The bombing site is now located in the Mitchell Recreation Area . Industrial expansion began in earnest following the 1933–1937 construction of the Bonneville Dam on the Columbia River. Hydroelectric power , food, and lumber provided by Oregon helped fuel the development of
4608-410: The region after the law was passed were forced to leave, and those who did not comply were arrested and beaten. They received no less than twenty and no more than thirty-nine stripes across the back if they still did not leave. This process could be repeated every six months. Slavery played a major part in Oregon's history and even influenced its path to statehood. The territory's request for statehood
4680-519: The region west of the Rocky Mountains to the Pacific Ocean. By the 1820s and 1830s, the Hudson's Bay Company dominated the Pacific Northwest from its Columbia District headquarters at Fort Vancouver (built in 1825 by the district's chief factor, John McLoughlin , across the Columbia from present-day Portland ). In 1841, the expert trapper and entrepreneur Ewing Young died leaving considerable wealth and no apparent heir, and no system to probate his estate. A meeting followed Young's funeral, at which
4752-476: The spores are in a resting state, the single spore must come in contact with a spore of a complementary mating type and of the same species. If the single spore isolates are from different species, the colonies will not fuse together and they will remain separate. When two isolates of the same species but different mating types fuse together, they soon form coalesced colonies which become dark brown and flat. With this particular fungus it will produce mycelial cords –
4824-399: The spores of a mature mushroom. This is stained white when seen as a spore print . Once spore formation is complete, this signifies a mature mushroom and now is able to spread its spores to start a new generation. Using genotyping and clonal analysis , scientists determined that a 2500-year old specimen of Armillaria ostoyae in northern Michigan , United States originated from spores of
4896-421: The state's name is uncertain. The earliest geographical designation "orejón" (meaning "big ear") comes from the Spanish historical chronicle Relación de la Alta y Baja California (1598), written by Rodrigo Montezuma of New Spain ; here it refers to the region of the Columbia River as it was encountered by the first Spanish scouts. The " j " in the Spanish phrase " El Orejón " was eventually corrupted into
4968-426: The world's most massive living organism. The species was long known as Armillaria ostoyae Romagn., until a 2008 publication revealed that the species had been described under the earlier name Armillaria solidipes by Charles Horton Peck in 1900, long before Henri Romagnesi had described it in 1970. Subsequently, a proposal to conserve the name Armillaria ostoyae was published in 2011 and has been approved by
5040-444: Was applied to the River of the West based on Native American tales of powerful Chinook winds on the lower Columbia River, or perhaps from first-hand French experience with the Chinook winds of the Great Plains . At the time, the River of the West was thought to rise in western Minnesota and flow west through the Great Plains. Another suggestion comes from Joaquin Miller , who wrote in Sunset magazine in 1904: The name, Oregon,
5112-410: Was delayed several times, as members of Congress argued among themselves whether the territory should be admitted as a "free" or "slave" state. Eventually politicians from the South agreed to allow Oregon to enter as a "free" state, in exchange for opening slavery to the Southwestern U.S. Oregon was admitted to the Union on February 14, 1859, though no one in Oregon knew it until March 15. Founded as
5184-438: Was the first acting public government of the Oregon Country before annexation by the government of the United States. It was succeeded by a Second Executive Committee, made up of Peter G. Stewart , Osborne Russell , and William J. Bailey , and this committee was itself succeeded by George Abernethy , who was the first and only Governor of Oregon under the provisional government. Also in 1841, Sir George Simpson , governor of
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