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Acer Leucoderme
''Acer leucoderme'' (English: chalk maple; also whitebark maple, pale-bark maple and sugar maple) is a deciduous tree native to the southeastern United States from North Carolina south to northwest Florida and west to eastern Texas. It lives in the understory in moist, rocky soils on river banks, ravines, woods, and cliffs. Although generally an uncommon tree, it is most often found in the inner coastal plain and Piedmont (United States), Piedmont regions of Georgia (U.S. state), Georgia. Description Chalk maple is a small tree, reaching 8–9 m in height and develops a round form with slender branches, and often with multiple trunks. The name "chalk maple" (in addition to the Latin name, meaning "white skin") comes from the attractive smooth and thin chalky white or light gray Bark (botany), bark on mature trees. The bark becomes ridged and blackish at the base as it ages. The Leaf, leaves are opposite and simple, 5–9 cm long and broad, often drooping at the tip. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Kunkel Small
John Kunkel Small (January 31, 1869 – January 20, 1938) was an American botanist. He studied plants in the southeastern United States and wrote a book about the deterioration of habitats in Florida. Early life and education Small was born on January 31, 1869, in Harrisburg, Pennsylvania, Harrisburg, Pennsylvania. He studied botany at Franklin & Marshall College, receiving his Bachelor's degree in 1892. Then he studied at Columbia University, where he earned a doctorate in philosophy in 1895 and a doctorate in science in 1912. Career After his first graduation in 1895, he became a special agent for the Georgia Geological Survey. Then, returning to Columbia University, he became the first Curator of Museums at the New York Botanical Garden, a post at which he served from 1898 until 1906. It was mainly at that time of his life when he issued several exsiccata, exsiccatae, among others the series ''Mosses of the Southern United States, distributed from the Herbarium of Columb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acer Saccharum
''Acer saccharum'', the sugar maple, is a species of flowering plant in the soapberry and lychee family Sapindaceae. It is native to the hardwood forests of eastern Canada and the eastern United States. Sugar maple is best known for being the primary source of maple syrup and for its brightly colored fall foliage. It may also be called "rock maple," "sugar tree," "sweet maple," or, particularly in reference to the wood, "hard maple," "Bird's eye figure, birds-eye maple," or "curly maple," the last two being specially Figure (wood), figured lumber. Description ''Acer saccharum'' is a deciduous tree normally reaching heights of , and exceptionally up to . A 10-year-old tree is typically about tall. As with most trees, forest-grown sugar maples form a much taller trunk and narrower canopy than open-growth ones. The leaf, leaves are deciduous, up to long and wide, palmate, with five lobes and borne in opposite pairs. The basal lobes are relatively small, while the upper lobes a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been evaluated and categorized by the International Union for Conservation of Nature (IUCN) as not being a focus of wildlife conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the " Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15,636) in the IUCN database still use the code "LR/lc", which indicates they have not been re- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological species. A series of Regional Red Lists, which assess the risk of extinction to species within a political management unit, are also produced by countries and organizations. The goals of the Red List are to provide scientifically based information on the status of species and subspecies at a global level, to draw attention to the magnitude and importance of threatened biodiversity, to influence national and international policy and decision-making, and to provide information to guide actions to conserve biological diversity. Major species assessors include BirdLife International, the Institute of Zoology (the research division of the Zoological Society of London), the World Conservation Monitoring Centre, and many Specialist Groups w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravine
A ravine is a landform that is narrower than a canyon and is often the product of streambank erosion. Ravines are typically classified as larger in scale than gullies, although smaller than valleys. Ravines may also be called a cleuch, dell, ghout (Nevis), gill or ghyll, glen, gorge, kloof (South Africa), and chine (Isle of Wight) A ravine is generally a fluvial slope landform of relatively steep (cross-sectional) sides, on the order of twenty to seventy percent in gradient. Ravines may or may not have active streams flowing along the downslope channel which originally formed them; moreover, often they are characterized by intermittent streams, since their geographic scale may not be sufficiently large to support a perennial stream. Definition According to Merriam-Webster, a ravine is "a small, narrow, steep-sided valley that is larger than a gully and smaller than a canyon and that is usually worn by running water". Some societies and languages do not differentiate b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Understory
In forestry and ecology, understory (American English), or understorey (English in the Commonwealth of Nations, Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the Canopy (biology), forest canopy without penetrating it to any great extent, but above the forest floor. Only a small percentage of light penetrates the canopy, so understory vegetation is generally Shade tolerance, shade-tolerant. The understory typically consists of trees stunted through lack of light, other small trees with low light requirements, saplings, shrubs, vines, and undergrowth. Small trees such as holly and Cornus (genus), dogwood are understory specialists. In Temperate broadleaf and mixed forest, temperate deciduous forests, many understory plants start into growth earlier in the year than the canopy trees, to make use of the greater availability of light at that particular time of year. A gap in the canopy caused by the death of a tree stimulates the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Raymond Fosberg
Francis Raymond Fosberg (20 May 1908 – 25 September 1993) was an American botanist. A prolific collector and author, he played a significant role in the development of coral reef and island studies. History Ray Fosberg was born in Spokane, Washington but grew up in Turlock, California. He received a B.A. in Botany at Pomona College in 1930. Fosberg worked as a plant researcher at the Los Angeles County Museum, specializing in plants from islands on the coast of California and of the desert Southwest. He became interested in island ecosystems, and in 1932 moved to Honolulu to work at the University of Hawaii as an assistant to Harold St. John. There he received an invitation to participate in the Mangarevan Expedition led by the malacologist Charles Montague Cooke, Jr. The expedition visited 25 high islands and 31 coral islands, and Fosberg and St. John brought back 15,000 plant specimens. Fosberg received his M.S. in Botany from the University of Hawaii in 1937 and h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julius Nieuwland
Julius Aloysius Arthur Nieuwland, CSC, (14 February 1878 – 11 June 1936) was a Belgian-born Holy Cross priest and professor of chemistry and botany at the University of Notre Dame, Indiana. He is known for his contributions to acetylene research and its use as the basis for one type of synthetic rubber, which eventually led to the invention of neoprene by DuPont. Life and work Nieuwland's parents emigrated from Hansbeke, Belgium in 1880 to South Bend, Indiana. As a young man, Nieuwland enrolled at the University of Notre Dame, where he studied Latin and Greek and received his undergraduate degree in 1899. He soon after began studies for the priesthood. Ordained in 1903, Nieuwland attended graduate school at The Catholic University of America, where he studied botany and chemistry. During his doctoral studies into the chemistry of acetylene, he discovered the chemical compound lewisite, which would later gain fame as a chemical warfare agent. Nieuwland had to be hospi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Forest Service
The United States Forest Service (USFS) is an agency within the United States Department of Agriculture, U.S. Department of Agriculture. It administers the nation's 154 United States National Forest, national forests and 20 United States National Grassland, national grasslands covering of land. The major divisions of the agency are the Chief's Office, National Forest System, State and Private Forestry, Business Operations, as well as Research and Development. The agency manages about 25% of federal lands and is the sole major national land management agency not part of the United States Department of the Interior, U.S. Department of the Interior (which manages the National Park Service, the U.S. Fish and Wildlife Service and the Bureau of Land Management). History In 1876, Congress formed the office of Special Agent in the Department of Agriculture to assess the quality and conditions of forests in the United States. Franklin B. Hough was appointed the head of the office. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Agriculture
The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and production, works to assure food safety, protects natural resources, fosters rural communities and works to end hunger in the United States and internationally. It is headed by the secretary of agriculture, who reports directly to the president of the United States and is a member of the president's Cabinet. The current secretary is Brooke Rollins, who has served since February 13, 2025. Approximately 71% of the USDA's $213 billion budget goes towards nutrition assistance programs administered by the Food and Nutrition Service (FNS). The largest component of the FNS budget is the Supplemental Nutrition Assistance Program (formerly known as the 'Food Stamp' program), which is the cornerstone of USDA's nutrition assistance. The United Stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Bishop Sudworth
George Bishop Sudworth (August 31, 1864 – May 10, 1927) was an American botanist. At the time of his death, he was the Chief Dendrologist of the United States Forest Service. Biography Born in Kingston, Wisconsin, Sudworth graduated from the University of Michigan in 1885. In 1885-1886 he was an instructor in botany at Michigan State Agricultural College and entered the Forestry Division of the U. S. Department of Agriculture in 1886. During his life, Sudworth published several books, but his most famous is ''A Check List of the Forest Trees of the United States''. Other works include "The Pine Trees of the Rocky Mountain Region" which was illustrated by Annie E. Hoyle. Sudworth discovered many new species and varieties of North American trees. Sudworth was a founder of the Society of American Foresters, and was also a member of the Washington Academy of Sciences, the Biological and Botanical Societies of Washington, and an honorary member of the Finnish forestry associati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gwinnett County, Georgia
Gwinnett County ( ) is located in the north central portion of the U.S. state of Georgia. It forms part of the Atlanta metropolitan area, being located about northeast of Atlanta city limits. In 2020, the population was 957,062, making it the second-most populous county in Georgia (after Fulton County). Its county seat is Lawrenceville. The county is named for Button Gwinnett, one of the signatories of the Declaration of Independence. Gwinnett County is the most ethnically diverse county in Georgia, with significant populations of Black, Hispanic, and Asian residents. As of the 2020 Census, no ethnicity constitutes more than a third of its population. History In 1813, Fort Daniel was created during the War of 1812 in territory that would become Gwinnett County. The county was created in 1818 by an act of the Georgia General Assembly, Gwinnett County was formed from parts of Jackson County (formerly part of Franklin County) and from lands gained through the cession of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
