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Diane Mary Bridson
Diane Mary Bridson (born 1942) is a British botanist. Biography Bridson entered the Herbarium at Kew Gardens in 1963 starting as an assistant in the African section, working on Rubiaceae, eventually becoming a Principal Scientific Officer. She was Assistant Keeper for a couple of years and retired in 2002. She was senior tutor on Kew's 'International Diploma Course in Herbarium Techniques' and was co-editor of The Herbarium handbook, first published in 1989. She has published extensively on Rubiaceae, with a particular focus on Coffea, including the account for Flora of Tropical East Africa. '' Coffea bridsoniae'' A.P.Davis & Mvungi; ''Keetia bridsoniae'' Jongkind; ''Psilanthus bridsoniae'' Sivar., S.D.Biju & P.Mathew; ''Psychotria bridsoniae'' A.P.Davis & Govaerts and ''Rytigynia bridsoniae ''Rytigynia'' is a genus of flowering plants in the family Rubiaceae. It is found in tropical and southern Africa. The genera ''Rytigynia'' and '' Fadogia'' form a strongly supported cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbarium
A herbarium (plural: herbaria) is a collection of preserved plant specimens and associated data used for scientific study. The specimens may be whole plants or plant parts; these will usually be in dried form mounted on a sheet of paper (called ''exsiccatum'', plur. ''exsiccata'') but, depending upon the material, may also be stored in boxes or kept in alcohol or other preservative. The specimens in a herbarium are often used as reference material in describing plant taxa; some specimens may be types. The same term is often used in mycology to describe an equivalent collection of preserved fungi, otherwise known as a fungarium. A xylarium is a herbarium specialising in specimens of wood. The term hortorium (as in the Liberty Hyde Bailey Hortorium) has occasionally been applied to a herbarium specialising in preserving material of horticultural origin. History The making of herbaria is an ancient phenomenon, at least six centuries old, although the techniques have changed l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Botanic Gardens, Kew
Royal Botanic Gardens, Kew is a non-departmental public body in the United Kingdom sponsored by the Department for Environment, Food and Rural Affairs. An internationally important botanical research and education institution, it employs 1,100 staff. Its board of trustees is chaired by Dame Amelia Fawcett. The organisation manages botanic gardens at Kew in Richmond upon Thames in south-west London, and at Wakehurst, a National Trust property in Sussex which is home to the internationally important Millennium Seed Bank, whose scientists work with partner organisations in more than 95 countries. Kew, jointly with the Forestry Commission, founded Bedgebury National Pinetum in Kent in 1923, specialising in growing conifers. In 1994, the Castle Howard Arboretum Trust, which runs the Yorkshire Arboretum, was formed as a partnership between Kew and the Castle Howard Estate. In 2019, the organisation had 2,316,699 public visitors at Kew, and 312,813 at Wakehurst. Its site at Kew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubiaceae
The Rubiaceae are a family of flowering plants, commonly known as the coffee, madder, or bedstraw family. It consists of terrestrial trees, shrubs, lianas, or herbs that are recognizable by simple, opposite leaves with interpetiolar stipules and sympetalous actinomorphic flowers. The family contains about 13,500 species in about 620 genera, which makes it the fourth-largest angiosperm family. Rubiaceae has a cosmopolitan distribution; however, the largest species diversity is concentrated in the tropics and subtropics. Economically important genera include ''Coffea'', the source of coffee, '' Cinchona'', the source of the antimalarial alkaloid quinine, ornamental cultivars (''e.g.'', '' Gardenia'', ''Ixora'', ''Pentas''), and historically some dye plants (''e.g.'', ''Rubia''). Description The Rubiaceae are morphologically easily recognizable as a coherent group by a combination of characters: opposite or whorled leaves that are simple and entire, interpetiolar stipules, tubu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coffea
''Coffea'' is a genus of flowering plants in the Family (biology), family Rubiaceae. ''Coffea'' species are shrubs or small trees native to tropical and southern Africa and tropical Asia. The seeds of some species, called coffee beans, are used to flavor various beverages and products. The fruits, like the seeds, contain a large amount of caffeine, and have a distinct sweet taste and are often juiced. The plant ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa. Cultivation and use There are over 120 species of ''Coffea'', which is grown from seed. The two most popular are ''Coffea arabica'' (commonly known simply as "Arabica"), which accounts for 60–80% of the world's coffee production, and ''Coffea canephora'' (known as "Robusta coffee, Robusta"), which accounts for about 20–40%. '' C. arabica'' is preferred for its s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Tropical East Africa
The ''Flora of Tropical East Africa'' (FTEA) is a catalogue of all 12,104 known wild plant species in Uganda, Kenya, and Tanzania. The project began in 1948 and was finally completed in September 2012. Approximately 1,500 new plant species were described, by 135 botanists from 21 countries. The ''Flora of Tropical East Africa'', a project of Royal Botanic Gardens, Kew, is the largest regional tropical Flora ever compiled. The species covered include 3-4% of the world's known plant species. When the project began in 1948, botanists thought they would be finished in fifteen years. Just in the last four years, 114 new species were described. The FTEA is an important tool for conservation of plants, wildlife, and habitat in the entire region. Approximately 2,500 of the species are endemic, or unique, to the area. The project will be used in collaboration with groups such as the IUCN Red List of Threatened Species in order to protect those species threatened with habitat loss or extinct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coffea Bridsoniae
''Coffea'' is a genus of flowering plants in the family Rubiaceae. ''Coffea'' species are shrubs or small trees native to tropical and southern Africa and tropical Asia. The seeds of some species, called coffee beans, are used to flavor various beverages and products. The fruits, like the seeds, contain a large amount of caffeine, and have a distinct sweet taste and are often juiced. The plant ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa. Cultivation and use There are over 120 species of ''Coffea'', which is grown from seed. The two most popular are ''Coffea arabica'' (commonly known simply as "Arabica"), which accounts for 60–80% of the world's coffee production, and ''Coffea canephora'' (known as "Robusta"), which accounts for about 20–40%. '' C. arabica'' is preferred for its sweeter taste, while ''C. canephora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keetia Bridsoniae
''Keetia'' is a genus of flowering plants in the family Rubiaceae. It consists of climbers or scrambling shrubs, rarely small trees. Distribution The genus has a wide distribution area and occurs in tropical and southern Africa. Taxonomy It was originally described by Edwin Percy Phillips in 1926Phillips EP. 1926 "The genera of South African flowering plants, Edition 2." ''Memoirs of the Botanical Survey of South Africa'' 10. and is named after J.D.M Keet, a South African forester and plant collector. The type species was ''Keetia transvaalensis'', which received its name from the region it was first collected, but is now included in ''Keetia gueinzii''. Species * '' Keetia abouabou'' Cheek * '' Keetia acuminata'' Bridson * '' Keetia angustifolia'' Bridson * '' Keetia bakossiorum'' Cheek * ''Keetia bridsoniae'' Jongkind * '' Keetia carmichaelii'' Bridson * '' Keetia cornelia'' (Cham. & Schltdl.) Bridson * '' Keetia ferruginea'' Bridson * '' Keetia foetida'' Bridson * '' Keetia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psilanthus Bridsoniae
''Coffea'' is a genus of flowering plants in the family Rubiaceae. ''Coffea'' species are shrubs or small trees native to tropical and southern Africa and tropical Asia. The seeds of some species, called coffee beans, are used to flavor various beverages and products. The fruits, like the seeds, contain a large amount of caffeine, and have a distinct sweet taste and are often juiced. The plant ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa. Cultivation and use There are over 120 species of ''Coffea'', which is grown from seed. The two most popular are ''Coffea arabica'' (commonly known simply as "Arabica"), which accounts for 60–80% of the world's coffee production, and ''Coffea canephora'' (known as "Robusta"), which accounts for about 20–40%. '' C. arabica'' is preferred for its sweeter taste, while ''C. canephora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psychotria Bridsoniae
''Psychotria'' is a genus of flowering plants in the family Rubiaceae. It contains 1,582 species and is therefore one of the largest genera of flowering plants. The genus has a pantropical distribution and members of the genus are small understorey trees in tropical forests. Some species are endangered or facing extinction due to deforestation, especially species of central Africa and the Pacific. Many species, including ''Psychotria viridis'', produce the psychedelic chemical dimethyltryptamine (DMT). Selected species * '' Psychotria abdita'' * ''Psychotria acutiflora'' * '' Psychotria adamsonii'' * '' Psychotria alsophila'' * '' Psychotria angustata'' * '' Psychotria atricaulis'' * ''Psychotria beddomei'' * ''Psychotria bimbiensis'' * ''Psychotria bryonicola'' * '' Psychotria camerunensis'' * '' Psychotria capensis'' * '' Psychotria carronis'' * ''Psychotria carthagenensis'' * ''Psychotria cathetoneura'' * '' Psychotria cernua' * '' Psychotria chalconeura'' * '' Psychotria ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rytigynia Bridsoniae
''Rytigynia'' is a genus of flowering plants in the family Rubiaceae. It is found in tropical and southern Africa. The genera ''Rytigynia'' and ''Fadogia'' form a strongly supported clade but neither of these genera is monophyletic. Distribution ''Rytigynia'' is found in Tropical Africa. '' R. senegalensis'' and '' R. umbellulata'' are the two most widespread species and they are found from Senegal to Sudan to Botswana. '' R. celastroides'' has the southernmost distribution and occurs as far south as KwaZulu-Natal. However, most species are more restricted in distribution area and they are often found in either West or East Africa. Half of the species is even endemic to one country. One-third of all ''Rytigynia'' species is found in Tanzania, and many of them are endemics. Bacterial leaf symbiosis Endophytic bacteria are housed in the intercellular space of the leaf mesophyll tissue. The presence of these bacteria can only be microscopically ascertained. The bacteria are identi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ham, London
Ham is a suburban district in Richmond, south-west London. It has meadows adjoining the River Thames where the Thames Path National Trail also runs. Most of Ham is in the London Borough of Richmond upon Thames and, chiefly, within the ward of Ham, Petersham and Richmond Riverside; the rest is in the Royal Borough of Kingston upon Thames. The district has modest convenience shops and amenities, including a petrol station and several pubs, but its commerce is subsidiary to the nearby regional-level economic centre of Kingston upon Thames. Geography Ham is centred south-west of the centre of London. Together with Petersham, Ham lies east of the bend in the river almost surrounding it on three sides, south of Richmond and north of Kingston upon Thames. Its elevation mostly ranges between 6m and 12m OD but reaches 20m in the foothill side-streets leading to Richmond Park. It has the Thames Path National Trail and is connected to Teddington by a large Lock Footbridge at Teddin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ham Lands
Ham Lands is a 72-hectare Local Nature Reserve and Site of Metropolitan Importance for Nature Conservation in Ham in the London Borough of Richmond upon Thames and the Royal Borough of Kingston upon Thames. The area is very popular with walkers, nature lovers, and horse-riders. There is an unofficial (non Council) off-road BMX track near Teddington Lock. The site is a large area of grassland and scrub bordering the River Thames. The other boundary is mostly formed by Riverside Drive. The area is divided into two sections by the lagoon and Thames Young Mariners. The land belonged to the Earl of Dysart until the nineteenth century. In 1904 it was leased by the Ham River Grit Co. Ltd for excavation of sand and ballast. They constructed a wharf and processing plant where barges loaded. A canal was constructed through the towpath in the 1920s to create an internal loading lagoon, now the Thames Young Mariners. The gravel pits were then backfilled with soil from different areas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
