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Senecio Keniensis
''Dendrosenecio keniensis'' (syn. ''Senecio keniensis'' and ''S. brassica'') is one of the giant groundsels endemic the higher altitudes of Mount Kenya. It is in the family Asteraceae and the genus ''Dendrosenecio'' (previously a ''Senecio''). ''Dendrosenecio keniodendron'' occurs the upper alpine zone of Mount Kenya and ''D. keniensis'' in the wetter areas of the lower alpine or the moorlands. Description ;Leaves and stems: Prostrate (even subterranean) trunks of soft brittle wood, with trunk to in diameter; which branch repeatedly at or below ground level, forming a large prostrate clone. The branches each support a great cabbage-like, densely packed leaf-rosettes of 30–40 leaves; each branch cloaked with older, dead foliage. Branches produced near ground-level are capable of rooting that supports a "creeping" horizontal growth-form. The leaves are oblong and narrow slightly where they attach to the rosette; they can be up to long and wide. The leaves are capable o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Mabberley
Professor David John Mabberley , (born May 1948) is a British-born botanist, educator and writer. Among his varied scientific interests is the taxonomy of tropical plants, especially trees of the families Labiatae, Meliaceae and Rutaceae. He is perhaps best known for his plant dictionary ''The plant-book. A portable dictionary of the vascular plants''. The third edition was published in 2008 as '' Mabberley's Plant-book'', for which he was awarded the Engler Medal in Silver in 2009. As of June 2017 '' Mabberley's Plant-book'' is in its fourth edition. Biography Born in Tetbury, Gloucestershire, England, Mabberley won a scholarship to Rendcomb College, Cirencester, then an open scholarship to St Catherine's College, Oxford, where he graduated B.A. in 1970 and M.A. in 1974. Although he intended to work for a doctorate under the cytologist C. D. Darlington he was inspired to move to Sidney Sussex College, Cambridge, under the supervision of E. J. H. Corner, leading to a PhD in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blackwell Publishing
Wiley-Blackwell is an international scientific, technical, medical, and scholarly publishing business of John Wiley & Sons. It was formed by the merger of John Wiley & Sons Global Scientific, Technical, and Medical business with Blackwell Publishing in 2007.About Wiley-Blackwell John Wiley & Sons, Inc. Wiley-Blackwell is now an imprint that publishes a diverse range of academic and professional fields, including , , , |
Karl Olov Hedberg
Prof. Karl Olov Hedberg (19 October 1923 – 24 September 2007) of Västerås was a botanist, taxonomist, author, professor of systematic botany at Uppsala University from 1970 to 1989, and an Editor of the Flora of Ethiopia. Career Professor Hedberg was a pioneer in scientific knowledge on the afroalpine vegetation. Our present knowledge of this biosystem owes much to the research he and his wife Inga did on the Rwenzori and other high mountains in East Africa. His breakthrough views were based on their systematic fieldwork in the late 1940s. 'Features of Afroalpine Plant Ecology' remains a landmark in equatorial alpine ecological research up till today, and is still available in a facsimile re-edition of 1995. Schutyser S. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thore Christian Elias Fries
Thore Christian Elias Fries (3 November 1886 – 31 December 1930 son of Theodor Magnus Fries and brother of Robert Elias Fries) was Professor of Systematic Botany at Lund University. He specialized in lichenology and plant geography. This botanist is denoted by the author abbreviation when citing a botanical name. He did his field work and travelled in India and Africa He was a member of the British Mycological Society The British Mycological Society is a learned society established in 1896 to promote the study of fungi. Formation The British Mycological Society (BMS) was formed by the combined efforts of two local societies: the Woolhope Naturalists' Field ... and associated with many botanical gardens and other museums. References Systematic Botany – Historyat www.systbot.uu.se *http://www.systbot.uu.se/information/history/fries. External links * Botanists with author abbreviations 1886 births 1930 deaths Fries, Robert Elias Fries, Robert Elias Swedi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Elias Fries
(Klas) Robert Elias Fries (11 July 1876, Uppsala – 29 January 1966, Stockholm), the youngest son of Theodor Magnus Fries (1832–1913) and grandson of Elias Magnus Fries(1794–1878) and an expert on mushrooms. A Swedish botanist who was a member of the British Mycological Society and involved with The Botanical Museum (UPS), Botanic Garden and Botanical Museum Berlin-Dahlem, Natural History Museum (BM), the National Botanic Garden of Belgium (BR), Conservatoire et Jardin botaniques de la Ville de Genève (G), Royal Botanic Gardens, Kew (K),the Swedish Museum of Natural History Department of Phanerogamic Botany (S) and the United States National Herbarium, Smithsonian Institution (US). A collector of plants from 1901 through 1923 in Europe: Sweden; Tropical Africa: Kenya; Tropical South America: Bolivia; Temperate South America: Argentina. He sometimes worked with his father and his brother Thore Christian Elias Fries (1886–1931). He was part of the Swedish 1901–190 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Department Of Agriculture
The United States Department of Agriculture (USDA) is the United States federal executive departments, federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, and food. It 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 United States Secretary of Agriculture, Secretary of Agriculture, who reports directly to the President of the United States and is a member of the president's Cabinet of the United States, Cabinet. The current secretary is Tom Vilsack, who has served since February 24, 2021. Approximately 80% of the USDA's $141 billion budget goes to the Food and Nutrition Service (FNS) program. The largest component of the FNS budget is the Supplementa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lobelia Deckenii
''Lobelia deckenii'' is a species of flowering plant in the family Campanulaceae. It is a giant lobelia endemic to the mountains of Tanzania. It is listed as a threatened plant of the forests of Cherangani hills, Kenya. It grows in moist areas, such as valley bottoms and moorland, in contrast to ''Lobelia telekii'' which grows in a similar but drier habitat. These two species produce occasional hybrids. ''Lobelia deckenii'' plants usually produce multiple rosettes. Each rosette grows for several decades, produces a single large inflorescence and hundreds of thousands of seeds, then dies. Because individual plants have multiple rosettes, they survive to reproduce repeatedly, and plants with more rosettes flower more frequently. It is iteroparous. ''Lobelia deckenii'' plants usually form between one and eighteen rosettes which are connected underground. The individual rosettes grow slowly in the alpine environment, and may take decades to reach reproductive size. The rosette that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Nations Environment Programme
The United Nations Environment Programme (UNEP) is responsible for coordinating responses to environmental issues within the United Nations system. It was established by Maurice Strong, its first director, after the United Nations Conference on the Human Environment in Stockholm in June 1972. Its mandate is to provide leadership, deliver science and develop solutions on a wide range of issues, including climate change, the management of marine and terrestrial ecosystems, and green economic development. The organization also develops international environmental agreements; publishes and promotes environmental science and helps national governments achieve environmental targets. As a member of the United Nations Development Group, UNEP aims to help the world meet the 17 Sustainable Development Goals. UNEP hosts the secretariats of several multilateral environmental agreements and research bodies, including The Convention on Biological Diversity (CBD), The Minamata Convention on M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carduus
''Carduus'' is a genus of flowering plants in the family Asteraceae, and the tribe Cardueae, one of two genera considered to be true thistles, the other being ''Cirsium''. Plants of the genus are known commonly as plumeless thistles.''Carduus''. Integrated Taxonomic Information System (ITIS).''Carduus''. Flora of North America. They are native to Eurasia and Africa, and several are known elsewhere as . This genus is noted for its disproportionately high number of |
