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Felicia Amoena
''Felicia amoena'' is a variably hairy, sometimes glandular, Biennial plant, biennial or perennial plant, of about high, that is assigned to the family Asteraceae. It is somewhat woody at its base, roots at the nodes if these contact the soil, and has ascending branches. The leaves are oppositely arranged along the stems at and just above a branching fork, further up the leaves alternate. The flower heads sit individually on up to long stalks. They are in diameter and consist of about twelve to twenty five heavenly blue ray florets that surround many yellow disc florets. Three subspecies have been recognised, that differ in width of the leaves and the involucral bracts, the size of the heads and number of ray florets and in having glandular hairs. These can be found in coastal sands and inland areas in the Western Cape and Eastern Cape provinces of South Africa. Flower heads can be found from June till October. Description ''Felicia amoena'' subsp. ''amoena'' is an upright, u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Levyns
Margaret Rutherford Bryan Levyns (née Michell, 24 August 1890 Cape Town – 11 November 1975 Cape Town) was an eminent South African phytogeographer, botanist and taxonomist. Early life and education Margaret Levyns was initially educated at home by her mother and later attended Ellerslie Girls' School. She obtained a first class matriculation and was awarded two bursaries. In 1908 she enrolled at the South African College intending to study mathematics, geology and chemistry, with botany for her honours year. Prof. Harold Pearson persuaded her to take botany as a major subject. After winning two scholarships, the Queen Victoria Scholarship and the 1851 Exhibition Memorial Scholarship and spending 1912-14 at Newnham College, she returned to South Africa and was promptly awarded another scholarship to the John Innes Institute where she chose to study genetics. On returning to South Africa for the second time, she took up a lecturing post in the Botany Department at 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] |
Hout Bay
Hout Bay ( af, Houtbaai, meaning "Wood Bay") is a harbour town in the Western Cape province of South Africa. It is situated in a valley on the Atlantic seaboard of the Cape Peninsula, twenty kilometres south of Cape Town. The name "Hout Bay" can refer to the town, the bay on which it is situated, or the entire valley. The area was originally made up of two farms, which were slowly subdivided to make way for urban expansion. While still maintaining its rural atmosphere, the area of Hout Bay has more than 5,960 residences inhabited by a population of at least 17,900 people (as of 2011). Pronunciation The pronunciation of "Hout Bay" varies: * Afrikaans Pronunciation: ''həʊ-'t bʌɪ / hoe-'t'' (contracted "t") bye. * English Pronunciation: ''həʊ-'t beɪ / hoe-'t'' (contracted "t") bay. * Adapted English Pronunciation: ''haʊ-'t beɪ / how-'t'' (contracted "t") bay. History Pre-colonisation From remains found in a cave, we know that people lived in this cave between 100 AD and 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Augustin Pyramus De Candolle
Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle had established a new genus, and he went on to document hundreds of plant families and create a new natural plant classification system. Although de Candolle's main focus was botany, he also contributed to related fields such as phytogeography, agronomy, paleontology, medical botany, and economic botany. De Candolle originated the idea of "Nature's war", which influenced Charles Darwin and the principle of natural selection. de Candolle recognized that multiple species may develop similar characteristics that did not appear in a common evolutionary ancestor; a phenomenon now known as convergent evolution. During his work with plants, de Candolle noticed that plant leaf movements follow a near-24-hour cycle in constant light, suggestin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riebeek-Kasteel
Riebeek-Kasteel is one of the oldest towns in South Africa, situated at 80 km north-east of Cape Town in The Riebeek Valley together with its sister town Riebeek West. They set off in the direction of Paardeberg and on 3 February 1661 they ascended a lonely mountain and came upon the fertile vista of the Riebeek Valley. They named it Riebeek Kasteel, in honor of the Commander. Jan Smuts was born in Bovenplaatz, near Riebeek West, on May 24, 1870. Daniel Malan was born in 1874 in Riebeeck West. Both men later became prime ministers of South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri .... Subsequently farmers established themselves in the valley and during 1900 the town was laid out in and around its existing church and its neighbor The Royal Hotel, the oldest hotel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Franz Drège
Johann Fran(t)z Drège (or Jean François Drège) (25 March 1794 Altona, Hamburg, Germany – 3 February 1881 Altona, Hamburg, Germany), commonly referred to by his standard botanical author abbreviation Drège, was a German horticulturalist, botanical collector and explorer of Huguenot descent. Drège received his first training in horticulture at Göttingen and subsequently worked at botanical gardens in Munich, Botanical Garden in Berlin, Berlin, St. Petersburg and Riga. In 1826 he travelled with his younger brother, Eduard, to join his older brother, Carl, who had been working as an apothecary in the Cape Colony, Cape since 1821. They established themselves as professional natural history collectors, with Carl concentrating on zoological and Franz on botanical specimens. Their contract with their European contacts expired in 1826, and they decided to launch their own business. August 1826 – May 1827 After starting his collecting career in Cape Town and the surrounding area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baron Von Ludwig
Carl Ferdinand Heinrich von Ludwig aka Baron von Ludwig (6 October 1784 Sulz am Neckar – 27 December 1847 Cape Town), the son of a clerk in the ecclesiastical administration, he was a German-born pharmacist, businessman and patron of the natural sciences, noted for having started Cape Town's first botanic garden. Biography Pharmacy career Ludwig served his pharmacy apprenticeship at Kirchheim near Stuttgart from where he went on to work in Amsterdam, first as apothecary and later as technician in a chemical laboratory . In 1805 he responded to an advertisement in an Amsterdam newspaper and applied for a post as pharmacy assistant to a certain Stuttgart-born Dr Liesching of Cape Town. Friedrich Ludwig Liesching was a former physician to the Württemberg regiment at the Cape. Ludwig's application was accepted and he sailed for the Cape in October 1805. His qualifications as pharmacist were approved in 1807 by a body set up to scrutinise the Cape medical and apothecary fraternitie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breede River
The Breede River ( af, Breederivier), also known as Breë River, is a river in the Western Cape Province of South Africa. Travelling inland north from the city of Cape Town, the river runs in a west to east direction. The surrounding western mountains formed the first continental divide experienced by European settlers in the 18th century. The Titus River and Dwars River become the Breë River. Sources The first catchment area of the river is in the Skurweberg mountain range close to Ceres. The head waters then runs through the modern day Mitchells Pass before plaining out on its middle course in the Worcester area. The river mouth is in an estuary at Port Beaufort on the Indian Ocean. Tributaries On its course through the Breede River Valley, it is joined by the Holsloot and Smalblaar Rivers, from their catchment areas, the Du Toitskloof and Stettyn mountain ranges. The Hex River with its catchment area in the Hex River Mountains also joins the Breede River from the north-ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant Collecting
Plant collecting is the acquisition of plant specimens for the purposes of research, cultivation, or as a hobby. Plant specimens may be kept alive, but are more commonly dried and pressed to preserve the quality of the specimen. Plant collecting is an ancient practice with records of a Chinese botanist collecting roses over 5000 years ago. Herbaria are collections of preserved plants samples and their associated data for scientific purposes. The largest herbarium in the world exist at the Muséum National d'Histoire Naturelle, in Paris, France. Plant samples in herbaria typically include a reference sheet with information about the plant and details of collection. This detailed and organized system of filing provides horticulturist and other researchers alike with a way to find information about a certain plant, and a way to add new information to an existing plant sample file. The collection of live plant specimens from the wild, sometimes referred to as plant hunting, is an act ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxon
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's Linnaean taxonomy, system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard de Jussieu, Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first mad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ploidy
Ploidy () is the number of complete sets of chromosomes in a cell (biology), cell, and hence the number of possible alleles for Autosome, autosomal and Pseudoautosomal region, pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectively, in each homologous chromosome pair, which chromosomes naturally exist as. Somatic cells, Tissue (biology), tissues, and Individual#Biology, individual organisms can be described according to the number of sets of chromosomes present (the "ploidy level"): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploidy, polyploid is often used to describe cells with three or more chromosome sets. Virtually all sexual reproduction, sexually reproducing organisms are made up of somatic cells that are diploid or greater, but ploidy level may vary widely between different or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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