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Leucospermum Utriculosum
''Leucospermum utriculosum'' is a lax, evergreen, upright and arching shrub of 1–2 m (3–6½ ft) high, from the family Proteaceae. It has hairless inverted lance-shaped to oblong leaves tipped with three to five teeth and globe-shaped to flattened light yellow to coppery flowerheads of 5–8 cm (2.0–3.2 in) in diameter. From the center of the flowers emerge almost straight styles that jointly give the impression of a pincushion. It is called Breede River pincushion in English. Although flower heads may occur on and off between May and March, the peak season is from September to November. It is known from the Western Cape province of South Africa. Description ''Leucospermum utriculosum'' is an upright or spreading shrub of 1–2 m (3–6½ ft) high and 2–3 m (6½–10 ft) across, with an informal habit. Its branches grow out at an angle up to the horizontal and often droop to the ground. It grows from a stout single main stem that branches low down, and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Patrick Rourke
John Patrick Rourke FMLS (born 26 March 1942, in Cape Town) is a South African botanist, who worked at the Kirstenbosch National Botanical Garden and became curator of the Compton Herbarium. He is a specialist in the flora of the Cape Floristic Region, in particular the family Proteaceae. Career Rourke studied at the University of Cape Town from 1960 to 1970, where he obtained his B.Sc., M.Sc. and Ph.D. He started working at Kirstenbosch from 1966, and succeeded Winsome Fanny Barker as curator of the Compton Herbarium in 1972. He published several revisions of Proteacean genera including ''Leucadendron'', ''Leucospermum'', ''Mimetes'', ''Vexatorella'', '' Sorocephalus'' and '' Spatalla''. During his career he collected approximately 2000 specimens of flora from the southwestern and southern Cape, Namaqualand and eastern Transvaal. In 1997 he was made foreign member of the Linnean Society of London. In 2003 Rourke was awarded the "Gold medal for Lifetime Preservation of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucospermum
''Leucospermum'' is a genus of evergreen upright, sometimes creeping shrubs that is assigned to the Proteaceae, with currently forty-eight known species. Almost all species are easily recognised as ''Leucospermum'' because of the long protruding styles with a thickened pollen-presenter, which jointly give the flower head the appearance of a pincushion, its common name. Pincushions can be found in South Africa, Swaziland, Zimbabwe and Mozambique. The shrubs mostly have a single stem at their base, but some species sprout from an underground rootstock, from which the plant can regrow after fire has killed the above ground biomass. In a larger group of species, specimens are killed by fire, and their survival depends on the seeds. In all species, seeds are collected by ants, which take them to their underground nests to feed on their ant breads, a seed dispersal strategy known as myrmecochory. This ensures that the seeds do not burn, so new plants can grow from them. ''Leucospermum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species 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 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evaluate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Mountain Sandstone
The Table Mountain Sandstone (TMS) is a group of rock formations within the Cape Supergroup sequence of rocks. Although the term "Table Mountain Sandstone" is still widely used in common parlance, the term TMS is no longer formally recognized; the correct name is the " Peninsula Formation Sandstone", which is part of the Table Mountain Group. The designation "Table Mountain Sandstone" will, however, in deference to the title, continue to be used in the rest of this article. The name is derived from the famous landmark in Cape Town, Table Mountain. Table Mountain Sandstone is made up predominantly of quartzitic sandstone laid down between 510 (Cambrian Period) and 400 (Silurian Period) million years ago. It is the hardest, and most erosion resistant layer of the Cape Supergroup. It therefore forms most of the highest and most conspicuous peaks in the Western Cape, as well as the steepest cliffs of the Cape Fold Mountains, despite being the oldest, and, therefore, low ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robertson, Western Cape
Robertson is a town in the Western Cape Province of South Africa founded on the theft of KHOIKHOI First nation land and cattle, known as the valley of wine and roses, at the heart of the wine route - Route 62 (South Africa), Route 62. Khoikhoi First nation land was stolen in 1853 and named after Dr , a Scotland, Scottish Dutch Reformed Church minister. Situated in the fertile Robertson Valley, farming and wagon building were the town's original industries. However, after the Second Second Boer War, Anglo-Boer War of 1899, the wagon building industry collapsed when the railways took over the transport of all goods. Robertson subsequently became famous for its ostrich farming, but this industry collapsed as well shortly after World War I, and the farmers of the area turned to wine and fruit farming. Later, several successful racehorse stud farms were founded. Agriculture remains the mainstay of the town's economy. Tourism Tourism has grown in recent years and the town has several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
McGregor, Western Cape
McGregor is a small village in the mountains of the Western Cape, South Africa. It is roughly 150 km east of Cape Town. It is located in Ward 5 of the Langeberg Municipality. According to the Census 2001, this Ward has a population of 10,254 people (Stats SA, 2001). The village was established in 1861 and was originally called Lady Grey. It was renamed in 1905 in honour of Rev. Andrew McGregor, who had been the Dutch Reformed Church minister of the Robertson District for forty years. It has become somewhat of a magnet for alternative lifestyles. The local Waldorf school has roughly 167 children. It is part of the broader wine route network of the Western Cape and is situated at one end of the popular Boesmanskloof Trail to the town of Greyton Greyton is a small town in the Overberg area in the Western Cape, South Africa. Early history Before Greyton was established in 1854, the verdant plains and forested ravines of the area were home to the Hessequas Khoikhoi tribe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Harold Compton
Robert Harold Compton (6 August 1886 in Tewkesbury – 11 July 1979 in Cape Town) was a South African botanist. The Compton Herbarium at Kirstenbosch National Botanical Garden, which he founded in Cape Town in 1939, was named in his honour. Career He attended Cambridge University from 1905 to 1909, attaining a double first class and distinction and later an M.A. He stayed on at Cambridge from 1911-13 as a Demonstrator in Botany, and joined a field expedition to New Caledonia in 1914, collecting extensively and discovering some new genera and species. While at Cambridge, his main publications were in the area of anatomy and morphology of Gymnosperms, Pteridophytes and Angiosperm seedlings. He enlisted for war service from 1915–18 and arrived in South Africa in March 1919 to become Director of thNational Botanic Gardensat Kirstenbosch. At the same time he took up the chair of Harold Pearson Professor of Botany at the University of Cape Town - Harold Pearson was the first D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caledon, Western Cape
Caledon is a town in the Overberg region in the Western Cape province of South Africa, located about east of Cape Town next to mineral-rich hot springs. it had a population of 13,020. It is located in, and the seat of, the Theewaterskloof Local Municipality. The town continues to be inhabited by Khoikhoi communities who, before the arrival of colonizing forces, were the wealthiest on this land. Caledon is situated on the N2 national route, by road from central Cape Town. At Caledon the N2 is met by the R316 from Arniston and Bredasdorp, and the R320 from Hermanus. It is also located on the Overberg branch railway line, by rail from Cape Town station. The Caledon district is primarily an agricultural region. Most agricultural activities involve grain production with a certain amount of stock farming. The town is locally well known for the Caledon Spa and Casino and for its rolling hills and yellow canola fields in spring. The town has a Mediterranean climate of warm, dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Thunberg
Carl Peter Thunberg, also known as Karl Peter von Thunberg, Carl Pehr Thunberg, or Carl Per Thunberg (11 November 1743 – 8 August 1828), was a Swedish naturalist and an "apostle" of Carl Linnaeus. After studying under Linnaeus at Uppsala University, he spent seven years travelling in southern Africa and Asia, collecting and describing many plants and animals new to European science, and observing local cultures. He has been called "the father of South African botany", "pioneer of Occidental Medicine in Japan", and the "Japanese Linnaeus". Early life Thunberg was born and grew up in Jönköping, Sweden. At the age of 18, he entered Uppsala University where he was taught by Carl Linnaeus, regarded as the "father of modern taxonomy". Thunberg graduated in 1767 after 6 years of studying. To deepen his knowledge in botany, medicine and natural history, he was encouraged by Linnaeus in 1770 to travel to Paris and Amsterdam. In Amsterdam and Leiden Thunberg met the Dutch botanist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovary (botany)
In the flowering plants, an ovary is a part of the female reproductive organ of the flower or gynoecium. Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below or at the point of connection with the base of the petals and sepals. The pistil may be made up of one carpel or of several fused carpels (e.g. dicarpel or tricarpel), and therefore the ovary can contain part of one carpel or parts of several fused carpels. Above the ovary is the style and the stigma, which is where the pollen lands and germinates to grow down through the style to the ovary, and, for each individual pollen grain, to fertilize one individual ovule. Some wind pollinated flowers have much reduced and modified ovaries. Fruits A fruit is the mature, ripened ovary of a flower following double fertilization in an angiosperm. Because gymnosperms do not have an ovary but reproduce through double fertilization of unprotected ovules, they produce naked seeds that do not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollen Presenter
A pollen-presenter is an area on the tip of the style in flowers of plants of the family Proteaceae on which the anthers release their pollen prior to anthesis. To ensure pollination, the style grows during anthesis, sticking out the pollen-presenter prominently, and so ensuring that the pollen easily contacts the bodies of potential pollination vectors such as bees, birds and nectarivorous mammals. The systematic depositing of pollen on the tip of the style implies the plants have some strategy to avoid excessive self-pollination Self-pollination is a form of pollination in which pollen from the same plant arrives at the Stigma (botany), stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen i .... References * Plant anatomy + Proteaceae {{Botany-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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