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Lithops Olivacea
''Lithops olivacea'' is a species of the genus ''Lithops'' under the family Aizoaceae. The name ''olivacea'' refers to the Latin word for olive (''oliva'') combined with the suffix ''-cea,'' meaning "of the likeness", producing the idea of "olive likeness". ''Lithops olivacea'' grow primarily in the Bushmanland of South Africa. They grow most abundantly in the regions of Aggeneys, Pofadder, and Namies. ''L. olivacea'' also received the Royal Horticultural Society's Award of Garden Merit for being "excellent for ordinary use in appropriate conditions, available to buy, of good constitution, essentially stable in form & colour, ndreasonably resistant to pests & diseases." Description The plant consists of bulbous leaves growing in pairs. Flowers will emerge from between the two leaves and sprout vertically. The leaves draw down into a small taproot which also grows adventitious roots when able. The flowers are yellow in color, and have a white center. ''L. olivacea'' usually tend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louisa Bolus
Harriet Margaret Louisa Bolus ''née'' Kensit (31 July 1877, Burgersdorp – 5 April 1970, Cape Town) was a South African botanist and taxonomist, and the longtime curator of the Bolus Herbarium, from 1903. Bolus also has the legacy of authoring more land plant species than any other female scientist, in total naming 1,494 species. Early life and education Bolus was born in Burgersdorp, Cape Province, South Africa, on 31 July 1877. She was the daughter of William Kensit and Jane Stuart Kensit. Her parents were both British-born. Her grandfather William Kensit was a serious amateur botanist and specimen collector in South Africa. She attended Collegiate Girls' High School in Port Elizabeth, earned a teaching credential in 1899, and was awarded a BA degree in literature and philosophy by the University of the Cape of Good Hope in 1902. Career She worked as an assistant to her great-aunt Sophia's husband Harry Bolus in his herbarium while she was in college. In June 1913 she bec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops
''Lithops'' is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. They avoid being eaten by herbivores with their camouflage as small stones, and are often known as pebble plants or living stones. "Lithops" is both the genus name and the common name, and is singular as well as plural. The name is derived from the Ancient Greek words () 'stone' and () 'face', referring to the stone-like appearance of the plants. Description Individual ''Lithops'' consist of one or more pairs of bulbous, almost fused leaves opposite each other and hardly any stem. The slit between the leaves contains the meristem and produces flowers and new leaves. The leaves of ''Lithops'' are mostly buried below the surface of the soil, with a partially or completely translucent top surface known as a leaf window which allows light to enter the interior of the leaves for photosynthesis. During winter a new leaf pair, or occasionally more t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aizoaceae
The Aizoaceae (), or fig-marigold family, is a large family of dicotyledonous flowering plants containing 135 genera and about 1,800 species. Several genera are commonly known as 'ice plants' or 'carpet weeds'. The Aizoaceae are also referred to as ''vygies'' in South Africa. Some of the unusual Southern African genera—such as '' Conophytum'', '' Lithops'', '' Titanopsis'' and '' Pleiospilos'' (among others)—resemble gemstones, rocks or pebbles, and are sometimes referred to as 'living stones' or 'mesembs' (short for mesembryanthemums). Description The family Aizoaceae is widely recognised by taxonomists. It once went by the botanical name "Ficoidaceae", now disallowed. The APG II system of 2003 (unchanged from the APG system of 1998) also recognizes the family, and assigns it to the order Caryophyllales in the clade core eudicots. The APG II system also classes the former families Mesembryanthemaceae Fenzl, Sesuviaceae Horan. and Tetragoniaceae Link under the family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushmanland (South West Africa)
Bushmanland () was a Bantustan in South West Africa (present-day Namibia), intended by the apartheid government to be a self-governing homeland for the San people (the Bushmen). Administrative history Bushmanland was established by the South African authorities with the issue of Proclamation 208 in 1976. No government or second-tier authority was established for the San Bushmen as it was believed that "they had evinced no interest in having a governing authority". Instead, a Bushman Advisory Council was established in 1986. Bushmanland, like other homelands in South West Africa, was replaced by a system of non-geographic ethnic-based administrations in 1980, which were in turn abolished in May 1989 at the start of the transition to independence. See also * Bushmanland (South Africa) *Apartheid Apartheid ( , especially South African English: , ; , ) was a system of institutionalised racial segregation that existed in South Africa and South West Africa (no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aggeneys
Aggeneys is a mining town established in 1976 on a farm of that name, situated between Pofadder and Springbok in the Northern Cape, South Africa. Origin of the name It has been stated that "no-one is quite certain of the origin of the name Aggeneys". Derived from the Nama language, suggested meanings include "Place of Blood", "Place of Red Clay" or "Place of Reeds". One author favours the last of these: the Nama word ‡''a'' means "reed" while !''keis'' means "place". Mining and geological contexts Aggeneys the town, on a farm of that name, was founded to service the Black Mountain Mine, an underground base-metal operation nearby, currently employing over 600 permanent staff. This zinc Zinc is a chemical element; it has symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic tabl .../lead/copper/silver Mining, mine is just ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pofadder, Northern Cape
Pofadder (Afrikaans for "puff adder") is a small town in the Northern Cape province of South Africa. In spite of its small size, it is an important local centre in the region known in South Africa as Bushmanland. The surrounding districts are arid, sparsely populated, rugged and picturesque. There is little in the way of cropping and local farmers run sheep or goats for a living. As a tourist destination, it is not sufficiently spectacular to rival the spring flowers of the coastal regions of Namaqualand, but it has its attractions for biologists and conservationists and those with an interest in its remarkable diversity of often-tiny xerophytes and animal life. In recent years, the town economy has been boosted by the construction and operation of solar power stations. Some claim that Pofadder was named after Klaas Pofadder, a local Koranna (Koi-Koi) tribal leader. Others maintain that this is an exercise in latter-day political correctness and that no record exists to prove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. the president was Keith Weed and the director general was Clare Matterson CBE. History Founders The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members the opportunity to present papers on their horticultural activities and discov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Award Of Garden Merit
The Award of Garden Merit (AGM) is a long-established award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. It includes the full range of cultivated plants, from annuals, biennials and perennials to shrubs and trees. It covers plants grown for specific purposes - such as vegetable crops, fruit, hedging, topiary, groundcover, summer bedding, houseplants, etc. It tests characteristics such as robustness, hardiness, longevity, flowering/fruiting abundance and quality, usefulness, and ease of cultivation. It pays particular attention to a plant's ability to survive and thrive in challenging conditions such as wind and frost. The AGM trophy symbol is widely used in gardening literature as a sign of exceptional quality, and is recognised as such by writers, horticulturalists, nurseries, and everybody in the UK who practises gardening. History The Award of Garden Merit is a mark of quality aw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithops Olivacea - Oxford Botanical Garden
''Lithops'' is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. They avoid being eaten by herbivores with their camouflage as small stones, and are often known as pebble plants or living stones. "Lithops" is both the genus name and the common name, and is singular as well as plural. The name is derived from the Ancient Greek words () 'stone' and () 'face', referring to the stone-like appearance of the plants. Description Individual ''Lithops'' consist of one or more pairs of bulbous, almost fused leaves opposite each other and hardly any stem. The slit between the leaves contains the meristem and produces flowers and new leaves. The leaves of ''Lithops'' are mostly buried below the surface of the soil, with a partially or completely translucent top surface known as a leaf window which allows light to enter the interior of the leaves for photosynthesis. During winter a new leaf pair, or occasionally more th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taproot
A taproot is a large, central, and dominant root from which other roots sprout laterally. Typically a taproot is somewhat straight and very thick, is tapering in shape, and grows directly downward. In some plants, such as the carrot, the taproot is a storage organ so well developed that it has been cultivated as a vegetable. The taproot system contrasts with the adventitious- or fibrous-root system of plants with many branched roots, but many plants that grow a taproot during germination go on to develop branching root structures, although some that rely on the main root for storage may retain the dominant taproot for centuries—for example, ''Welwitschia''. Description Dicots, one of the two divisions of flowering plants (angiosperms), start with a taproot, which is one main root forming from the enlarging radicle of the seed. The tap root can be persistent throughout the life of the plant but is most often replaced later in the plant's development by a fibrous root system. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adventitious Root
Important structures in plant development are buds, Shoot (botany), shoots, roots, leaf, leaves, and flowers; plants produce these tissues and structures throughout their life from meristems located at the tips of organs, or between mature tissues. Thus, a living plant always has embryonic tissues. By contrast, an animal embryo will very early produce all of the body parts that it will ever have in its life. When the animal is born (or hatches from its egg), it has all its body parts and from that point will only grow larger and more mature. However, both plants and animals pass through a phylotypic stage that evolved independently and that causes a developmental constraint limiting morphological diversification. According to plant physiology, plant physiologist A. Carl Leopold, the properties of organization seen in a plant are emergence, emergent properties which are more than the sum of the individual parts. "The assembly of these tissues and functions into an integrated multicel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz
Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The Atom, atoms are linked in a continuous framework of SiO4 silicon–oxygen Tetrahedral molecular geometry, tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of Silicon dioxide, SiO2. Quartz is, therefore, classified structurally as a Silicate mineral#Tectosilicates, framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation from α-quartz to β-quartz takes place abruptly at . Since the transformation is accompanied by a significant change in volume, it can easily induce microfracturing of ceramics or rocks passing through this temperature threshold. There are many different varieties of quartz, several of which are classifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
