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A.W.Hill
Sir Arthur William Hill (11 October 1875, in Watford – 3 November 1941, in Richmond) was Director of the Royal Botanic Gardens, Kew, and a noted botanist and taxonomist. The only son of Daniel Hill, he attended Marlborough College where his interest in natural history was encouraged by the classical master and entomologist, Edward Meyrick. Hill went on to King's College, Cambridge, where he came under the influence of Marshall Ward and Walter Gardiner, acquiring an MA and DSc. His numerous field trips started with the expedition of the English geographer, William Bisiker FRGS, to Iceland in 1900. This was followed by exploration of the Andes in Bolivia and Peru in 1903, sparking an interest in cushion plants which was to last throughout his life, and the Caribbean in 1911. In 1907 he joined Kew as Assistant Director under Sir David Prain, and started contributing to the floras of Africa and India. In 1922 he succeeded Prain as Director. With grants from the Emp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaultheria
''Gaultheria'' is a genus of about 135 species of shrubs in the family Ericaceae. The name commemorates Jean François Gaultier of Quebec, an honour bestowed by the Scandinavian Pehr Kalm in 1748 and taken up by Carl Linnaeus in his '. These plants are native to Asia, Australasia and North and South America. In the past, the Southern Hemisphere species were often treated as the separate genus ''Pernettya'', but no consistent reliable morphological or genetic differences support recognition of two genera, and they are now united in the single genus ''Gaultheria''. Description The species vary from low, ground-hugging shrubs less than tall, up to tall, or, in the case of '' G. fragrantissima'' from the Himalayas, even a small tree up to tall. The leaves are evergreen, alternate (opposite in '' G. oppositifolia'' from New Zealand), simple, and vary between species from long; the margins are finely serrated or bristly in most species, but entire in some. The flowers ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pernettya
''Gaultheria'' is a genus of about 135 species of shrubs in the family Ericaceae. The name commemorates Jean François Gaultier of Quebec, an honour bestowed by the Scandinavian Pehr Kalm in 1748 and taken up by Carl Linnaeus in his '. These plants are native to Asia, Australasia and North and South America. In the past, the Southern Hemisphere species were often treated as the separate genus ''Pernettya'', but no consistent reliable morphological or genetic differences support recognition of two genera, and they are now united in the single genus ''Gaultheria''. Description The species vary from low, ground-hugging shrubs less than tall, up to tall, or, in the case of '' G. fragrantissima'' from the Himalayas, even a small tree up to tall. The leaves are evergreen, alternate (opposite in '' G. oppositifolia'' from New Zealand), simple, and vary between species from long; the margins are finely serrated or bristly in most species, but entire in some. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obituary Notices Of Fellows Of The Royal Society
The ''Biographical Memoirs of Fellows of the Royal Society'' is an academic journal on the history of science published annually by the Royal Society. It publishes obituaries of Fellows of the Royal Society. It was established in 1932 as ''Obituary Notices of Fellows of the Royal Society'' and obtained its current title in 1955, with volume numbering restarting at 1. Prior to 1932, obituaries were published in the ''Proceedings of the Royal Society''. The memoirs are a significant historical record and most include a full bibliography of works by the subjects. The memoirs are often written by a scientist of the next generation, often one of the subject's own former students, or a close colleague. In many cases the author is also a Fellow. Notable biographies published in this journal include Albert Einstein, Alan Turing, Bertrand Russell, Claude Shannon, Clement Attlee, Ernst Mayr, and Erwin Schrödinger. Each year around 40 to 50 memoirs of deceased Fellows of the Royal Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyrenaica
Cyrenaica ( ) or Kyrenaika ( ar, برقة, Barqah, grc-koi, Κυρηναϊκή παρχίαKurēnaïkḗ parkhíā}, after the city of Cyrene), is the eastern region of Libya. Cyrenaica includes all of the eastern part of Libya between longitudes E16 and E25, including the Kufra District. The coastal region, also known as '' Pentapolis'' ("Five Cities") in antiquity, was part of the Roman province of Crete and Cyrenaica, later divided into ''Libya Pentapolis'' and ''Libya Sicca''. During the Islamic period, the area came to be known as ''Barqa'', after the city of Barca. Cyrenaica became an Italian colony in 1911. After the 1934 formation of Libya, the Cyrenaica province was designated as one of the three primary provinces of the country. During World War II, it fell under British military and civil administration from 1943 until 1951, and finally in the Kingdom of Libya from 1951 until 1963. The region that used to be Cyrenaica officially until 1963 has formed seve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marah (plant)
''Marah'' (the manroots, wild cucumbers, or cucumber gourds) are flowering plants in the gourd family (Cucurbitaceae), native to western North America. The genus (which Kellogg noted was characterized by extreme bitterness) was named for Marah in , which was said to be named for the bitter water there. Except for the isolated range of '' Marah gilensis'' (Gila manroot) in west-central Arizona and island populations (''M. macrocarpus'' var. ''major''), all manroot species inhabit overlapping ranges distributed from Southern Canada to Northern Mexico. Although ''Marah oreganus'' (coastal manroot) extends inland into Idaho, all other manroot species except ''M. gilensis'' are confined to areas within 300 km of the Pacific Ocean coast. Description The manroots are perennial plants, growing from a large tuberous root. Most have stout, scabrous or hairy stems, with coiling tendrils that enable them to climb up other plants; they can also grow rapidly across level ground. Their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sebaea
''Sebaea'' is a genus of annual plants in the family Gentianaceae. Species occur in Africa, Madagascar, India, China, Thailand, Australia and New Zealand. The genus was paraphyletic and has been split in four genera: ''Exochaenium'', ''Klackenbergia'', ''Lagenias'' and ''Sebaea'' ''s.str.''. Synapomorphies for ''Sebaea s.str.'' include the presence of extra stigma along the style (called diplostigmaty) and the shape of the testa cells of the seeds. The name honors Albertus Seba (1665–1736), a Dutch pharmacist, zoologist and collector. Species include (non exhaustiv list): *'' Sebaea albens'' (L. f.) Roem. & Schult. *'' Sebaea albidiflora'' F.Muell. - white sebaea *'' Sebaea ambigua'' Cham. *'' Sebaea amicorum'' I.M. Oliv. & Beyers *''Sebaea aurea'' (L. f.) Roem. & Schult. *'' Sebaea bojeri'' Griseb. *'' Sebaea brachyphylla'' Griseb. *''Sebaea capitata'' Cham. & Schlechtdl. **'' var. capitata'' Cham. & Schlechtdl. **'' var. sclerosepala'' (Schinz) Marais *'' Sebaea chiron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peperomia
''Peperomia'' is one of the two large genera of the family Piperaceae. It is estimated that there are at least over 1,000 species, occurring in all tropical and subtropical regions of the world. They are concentrated in northern South America and Central America, but are also found in Africa, southern Asia, and Oceania. The exact number is difficult to tell as some plants have been recorded several times with different names (c. 3,000 names have been used in publications) and new species continue to be discovered. Peperomias have adapted to many different environments and their appearance varies greatly. Some are epiphytes (growing on other plants) or lithophytes (growing on rock or in rock crevices), and many are xerophytes (drought-tolerant) either with thick succulent structures or with underground tubers (geophytes). Most species are compact perennial shrubs or vines. The genus name ''Peperomia'' was coined by Spanish botanists Ruiz López and Pavón Jiménez in 1794 aft ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angiosperms
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils are in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamus Communis
''Dioscorea communis'' or ''Tamus communis'' is a species of flowering plant in the yam family Dioscoreaceae and is commonly known as black bryony, lady's-seal or black bindweed. Description It is a climbing herbaceous plant growing to 2–4 m tall, with stems that twine anticlockwise. The leaves are spirally arranged, heart-shaped, up to 10 cm long and 8 cm broad, with a petiole up to 5 cm long. It is dioecious, with separate male and female plants. The flowers are individually inconspicuous, greenish-yellow, 3–6 mm diameter, with six petals; the male flowers produced in slender 5–10 cm racemes, the female flowers in shorter clusters. The fruit is a bright red berry, 1 cm diameter. Its fairly large tuber is, like the rest of the plant, poisonous. Distribution ''Dioscorea communis'' is native and widespread throughout southern and central Europe, northwest Africa and western Asia, from Ireland to the Canary Islands, east to Iran and Crimea. Habi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus
A pine is any conifer tree or shrub in the genus ''Pinus'' () of the family Pinaceae. ''Pinus'' is the sole genus in the subfamily Pinoideae. The World Flora Online created by the Royal Botanic Gardens, Kew and Missouri Botanical Garden accepts 187 species names of pines as current, together with more synonyms. The American Conifer Society (ACS) and the Royal Horticultural Society accept 121 species. Pines are commonly found in the Northern Hemisphere. ''Pine'' may also refer to the lumber derived from pine trees; it is one of the more extensively used types of lumber. The pine family is the largest conifer family and there are currently 818 named cultivars (or trinomials) recognized by the ACS. Description Pine trees are evergreen, coniferous resinous trees (or, rarely, shrubs) growing tall, with the majority of species reaching tall. The smallest are Siberian dwarf pine and Potosi pinyon, and the tallest is an tall ponderosa pine located in southern Oregon's Rogue Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinus Sylvestris
''Pinus sylvestris'', the Scots pine (UK), Scotch pine (US) or Baltic pine, is a species of tree in the pine family Pinaceae that is native to Eurasia. It can readily be identified by its combination of fairly short, blue-green leaves and orange-red bark. Description ''Pinus sylvestris'' is an evergreen coniferous tree growing up to in height and in trunk diameter when mature, exceptionally over tall and in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old tree growing in Estonia which stands at . The lifespan is normally 150–300 years, with the oldest recorded specimens in Lapland, Northern Finland over 760 years. The bark is thick, flaky and orange-red when young to scaly and gray-brown in maturity, sometimes retaining the former on the upper portion.Trees for LifeSpecies profile: Scots pine/ref> The habit of the mature tree is distinctive due to its long, bare and straight trunk topped by a rounded or flat-topped mass of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Laurence Burtt
Brian Laurence "Bill" Burtt FRSE FLS (27 August 1913 – 30 May 2008), was an English botanist and taxonomist who is noted for his contributions to the family Gesneriaceae. In a career that spanned 74 years, he worked first at the Royal Botanic Gardens, Kew, and then at the Royal Botanic Garden Edinburgh (RBGE). He made numerous field trips to South Africa and Sarawak and described a total of 637 new plant species. Burtt is denoted by the author abbreviation when citing a botanical name. Education and career Brian Laurence Burtt, known to colleagues as Bill, was born 27 August 1913 in Claygate, Surrey, to Mabel Johnston and Laurence Buckley Burtt. He was educated at Dulwich College, excelling in Latin. After Dulwich he was employed at Kew as herbarium assistant to Arthur William Hill, the Director. Here he learnt to work with dried plant material from all over the world, painstakingly dissecting and classifying. Burtt wrote his first paper in 1932 with the assistance of Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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