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Felicia Nordenstamii
''Felicia nordenstamii'' is a flowering shrub in the family Asteraceae. It is found only in South Africa where it grows on limestone hills close to the sea on the southern coast. ''Felicia nordenstamii'' is a many-branched shrub growing up to tall. The lower parts of the stems are covered in grayish brown bark and the upper stem has many crowded, upwardly angled, alternate leaves with long hairs on the lower surfaces. Large flower heads form at the tips of the branches, each about 4 cm (1 in) across, with about thirty purplish blue ray florets surrounding many yellow disc florets. Description ''Felicia nordenstamii'' is a branched shrub of up to high, that is relatively strongly woody at its base. Where it has lost its leaves in lower part of the stem, it is covered with grayish brown bark. In the leaf-covered younger parts, the stem carries long hairs. The leaves are set alternately along the stem, densely crowded, at an upward angle, without a stalk, narrowly inv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
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 ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serrated
Serration is a saw-like appearance or a row of sharp or tooth-like projections. A serrated cutting edge has many small points of contact with the material being cut. By having less contact area than a smooth blade or other edge, the applied pressure at each point of contact is greater and the points of contact are at a sharper angle to the material being cut. This causes a cutting action that involves many small splits in the surface of the material being cut, which cumulatively serve to cut the material along the line of the blade. In nature, serration is commonly seen in the cutting edge on the teeth of some species, usually sharks. However, it also appears on non-cutting surfaces, for example in botany where a toothed leaf margin or other plant part, such as the edge of a carnation petal, is described as being serrated. A serrated leaf edge may reduce the force of wind and other natural elements. Probably the largest serrations on Earth occur on the skylines of mountains (th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rune Bertil Nordenstam
Rune Bertil Nordenstam (born 1936) is a Sweden, Swedish botanist and professor emeritus at the Swedish Museum of Natural History in the Department of Phanerogamic Botany. He has worked with Colchicaceae, Senecioneae and Calenduleae, was the editor of ''Compositae Newsletter'' newsletter since 1990, and is a Tribal Coordinator for The International Compositae Alliance with responsibility for the tribes Calenduleae and Senecioneae. He has done field work in Greece, Sweden, Turkey, Mongolia, Egypt, Namibia. This botanist is denoted by the List of botanists by author abbreviation, author abbreviation B.Nord. when Author citation (botany), citing a botanical name. In 2006, botanist Roger Lundin published ''Nordenstamia'', a genus of flowering plants from South America, belonging to the family Asteraceae and named in Nordenstam's honour. Abbreviation References External links * * Botanists with author abbreviations Living people 1936 births Botanists active in Africa Swedi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Section (botany)
In botany, a section ( la, sectio) is a taxonomic rank below the genus, but above the species. The subgenus, if present, is higher than the section, and the rank of series, if present, is below the section. Sections may in turn be divided into subsections.Article 4 in Sections are typically used to help organise very large genera, which may have hundreds of species. A botanist wanting to distinguish groups of species may prefer to create a taxon at the rank of section or series to avoid making new combinations, i.e. many new binomial names for the species involved. Examples: * ''Lilium'' sectio ''Martagon'' Rchb. are the Turks' cap lilies * ''Plagiochila aerea'' Taylor is the type species of ''Plagiochila'' sect. ''Bursatae'' See also * Section (biology) References Section Section, Sectioning or Sectioned may refer to: Arts, entertainment and media * Section (music), a complete, but not independent, musical idea * Section (typography), a subdivision, especially ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy (biology)
In biology, taxonomy () is the scientific study of naming, defining ( circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon) and these groups are given a taxonomic rank; groups of a given rank can be aggregated to form a more inclusive group of higher rank, thus creating a taxonomic hierarchy. The principal ranks in modern use are domain, kingdom, phylum (''division'' is sometimes used in botany in place of ''phylum''), class, order, family, genus, and species. The Swedish botanist Carl Linnaeus is regarded as the founder of the current system of taxonomy, as he developed a ranked system known as Linnaean taxonomy for categorizing organisms and binomial nomenclature for naming organisms. With advances in the theory, data and analytical technology of biological systematics, the Linnaean system has transformed into a system of modern biological classification intended to reflect the evolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terence Macleane Salter
Terence Macleane Salter (5 February 1883 – 30 March 1969) was a British/South African plant collector and botanist. Among the plant taxa named in his honor are the genus ''Saltera'' ( Penaeaceae) and the orchid '' Disa salteri''. Biography Salter was the second child of Emily Susannah Wilding and James Colam Salter. He was born in Cheltenham, Gloucestershire, England. He joined the Royal Navy in 1900 and was promoted to assistant paymaster in 1901. He served aboard '' HMS Majestic'' in Gibraltar. He became paymaster-captain in 1916. He was stationed at Naval Base Simon's Town, South Africa, from 1927 until his retirement in 1931 at the rank of Paymaster Commander. During his commission in Simon's Town, he collected mainly from the Cape area. The specimens he collected during this period were added to the herbarium collection at the Royal Botanic Gardens, Kew and the Natural History Museum, London. After his emigration to South Africa in 1935, he resumed his collecting wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Agulhas
Cape Agulhas (; pt, Cabo das Agulhas , "Cape of the Needles") is a rocky headland in Western Cape, South Africa. It is the geographic southern tip of the African continent and the beginning of the dividing line between the Atlantic and Indian Oceans according to the International Hydrographic Organization. Historically, the cape has been known to sailors as a major hazard on the traditional clipper route. It is sometimes regarded as one of the great capes. It was most commonly known in English as Cape L'Agulhas until the 20th century. The town of L'Agulhas is located near to the cape. Geography Cape Agulhas is located in the Overberg region, 170 kilometres (105 mi) southeast of Cape Town. The cape was named by Portuguese navigators, who called it ''Cabo das Agulhas''—Portuguese for "Cape of Needles"—after noticing that around the year 1500 the direction of magnetic north (and therefore the compass needle) coincided with true north in the region. The cape is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyarrhena Imbricata
''Polyarrhena'' is a genus of low, branching shrublets that is assigned to the Asteraceae, daisy family (Compositae or Asteraceae). Its stems are alternately and densely set with entire or somewhat toothed leaves. Like in almost all Asteraceae, the individual flowers are Merosity, 5-merous, small and clustered in typical heads, and which are surrounded by an involucre of in this case three whorls of bracts. In ''Polyarrhena'', the centre of the head is taken by yellow Asteraceae#Floral heads, disc florets, and is surrounded by one single whorl of white Asteraceae#Floral heads, ligulate florets that have a pinkish-purple wash on the underside. These florets sit on a common base (or Receptacle (botany), receptacle) and are not individually subtended by a bract (or palea). The species occur in the Cape Floristic Region. ''Polyarrhena reflexa'' has long been cultivated as an Ornamental plant, ornamental and is often known under its synonym ''Aster reflexum''. Taxonomy In his famous ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felicia (plant)
''Felicia'' is a genus of small shrubs, perennial or annual herbaceous plants, with 85 known species, that is assigned to the daisy family (Compositae or Asteraceae). Like in almost all Asteraceae, the individual flowers are 5-merous, small and clustered in typical heads, and which are surrounded by an involucre of, in this case between two and four whorls of, bracts. In ''Felicia'', the centre of the head is taken by yellow, seldom whitish or blackish blue disc florets, and is almost always surrounded by one single whorl of mostly purple, sometimes blue, pink, white or yellow ligulate florets and rarely ligulate florets are absent. These florets sit on a common base (or receptacle) and are not individually subtended by a bract (or palea). Most species occur in the Cape Floristic Region, which is most probably the area where the genus originates and had most of its development. Some species can be found in the eastern half of Africa up to Sudan and the south-western Arabian pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felicia Westae
''Felicia westae'' is a sparsely branched shrub growing up to tall, that is assigned to the family Asteraceae. The lower parts of the stems have lost their leaves and the upper part has many crowded, upwardly angled and curved, alternate leaves pressed against the stem, with the edges curled inward. The flower heads form at the tips of the branches, each about 3 cm (1 in) across, with about twenty purplish blue ray florets surrounding many yellow disc florets. It is only known from a small area in the Eastern Cape province of South Africa. Description ''Felicia westae'' is a low, up to high, sparsely branched shrub. The lower parts of the stem are largely hairless, the higher parts are crowded with arched upturned leaves. The leaves are line- to lance-shaped, long and 1–1 mm (0.04-0.06 in) wide, the surfaces hairless, and the bristly serrated margins curled upward and towards each other. The flower heads are set individually on short, up to long st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Felicia Echinata
''Felicia echinata'', commonly known as the dune daisy or prickly felicia, is a species of shrub native to South Africa belonging to the daisy family (Compositae or Asteraceae). It grows to high and bears blue-purple flower heads with yellow central discs. In the wild, it flowers April to October. Description ''Felicia echinata'' is an upright, strongly branching shrublet of up to high. The well-branching stems are alternately and often densely set with thick, inclined, overlapping leaves of long and wide, hairless or fringed. and also on the upper leaf surface with hairs and, below the upper leaf surface, with many roundish glands. As in almost all Asteraceae, the individual florets are 5-merous, small, and clustered in typical " composite" heads, surrounded by an involucre of three or four whorls of lanceolate bracts, the outer long and wide, the inner long and wide, all with rough hairs that become glandular near the bract tip. In ''Felicia echinata'', the centre of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dehiscence (botany)
Dehiscence is the splitting of a mature plant structure along a built-in line of weakness to release its contents. This is common among fruits, anthers and sporangia. Sometimes this involves the complete detachment of a part; structures that open in this way are said to be dehiscent. Structures that do not open in this way are called indehiscent, and rely on other mechanisms such as decay or predation to release the contents. A similar process to dehiscence occurs in some flower buds (e.g., ''Platycodon'', ''Fuchsia''), but this is rarely referred to as dehiscence unless wikt:circumscissile, circumscissile dehiscence is involved; anthesis is the usual term for the opening of flowers. Dehiscence may or may not involve the loss of a structure through the process of abscission. The lost structures are said to be wikt:caducous, caducous. Association with crop breeding Manipulation of dehiscence can improve crop yield since a Trait (biological), trait that causes seed dispersal i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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