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Greyia
''Greyia'' is a genus of plant in family Francoaceae. It contains three species: * '' Greyia flanaganii'', Bolus * '' Greyia radlkoferi'' * '' Greyia sutherlandii'' Unlike other plants sometimes included in the family Melianthaceae, ''Greyia'' has simple (undivided) leaves, flowers with ten stamens, and ovaries with parietal placentation. Because of this, the genus has sometimes been placed in a separate family Greyiaceae, but under the APG II system and APG III system of classification, it was included in the Melianthaceae. Under the APG IV system The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was publish ..., it is included in the Francoaceae. References Geraniales genera Taxonomy articles created by Polbot {{Geraniales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greyia Flanaganii
''Greyia flanaganii'', commonly known as the Kei bottlebrush, is a species of plant in the Francoaceae family. ''Greyia flanaganii'' is one of the related species of the taxonomically isolated and endemic southern African family, the Greyiaceae. ''Greyia flanaganii'' is endemic to southeastern South Africa. It is named after Henry George Flanagan, a South African farmer and botanist from Komga, Eastern Cape, South Africa. Description It is more often a shrub than a small tree. The lower side of the leaves are covered in dense hairs, similar to those of the woolly bottlebrush, but the leaves are less strongly lobed around the base. Range It is present in the hills and rocky valleys around Grahamstown, but may be found from Queenstown to Komga in the Eastern Cape. It is indicated as rare on the SANBI red data list, but is not threatened by extinction. They are usually found growing as individuals, and are distributed in about 10 known subpopulations. Relationships The two rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greyia
''Greyia'' is a genus of plant in family Francoaceae. It contains three species: * '' Greyia flanaganii'', Bolus * '' Greyia radlkoferi'' * '' Greyia sutherlandii'' Unlike other plants sometimes included in the family Melianthaceae, ''Greyia'' has simple (undivided) leaves, flowers with ten stamens, and ovaries with parietal placentation. Because of this, the genus has sometimes been placed in a separate family Greyiaceae, but under the APG II system and APG III system of classification, it was included in the Melianthaceae. Under the APG IV system The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was publish ..., it is included in the Francoaceae. References Geraniales genera Taxonomy articles created by Polbot {{Geraniales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greyia Radlkoferi
''Greyia radlkoferi'', the woolly bottlebrush or Natal bottlebrush, is a shrub or small tree, native to South Africa. It grows up to 5 metres in height and has smooth yellowish bark, becoming grey and deeply furrowed as it matures. The leaves are oval or heart-shaped and woolly on the undersurface, which distinguishes the species from ''Greyia sutherlandii''. The scarlet flowers occur in dense, upright clusters from July to October in the species' native range. It is named for Ludwig Adolph Timotheus Radlkofer Ludwig Adolph Timotheus Radlkofer (19 December 1829, in Munich – 16 February 1927, in Munich), was a Bavarian taxonomist and botanist. Radlkofer became a physician in 1854 and earned a PhD in botany at Jena the following year. He became an asso .... References * Trees of South Africa radlkoferi {{Geraniales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geraniales Genera
Geraniales is a small order of flowering plants, included within the rosid subclade of eudicots. The largest family in the order is Geraniaceae with over 800 species. In addition, the order includes the smaller Francoaceae with about 40 species. Most Geraniales are herbaceous, but there are also shrubs and small trees. Flower morphology of the Geraniales is rather conserved. They are usually perfectly pentamerous and pentacyclic without fused organs besides the carpels of the superior gynoecium. The androecium is obdiplostemonous. Only a few genera are tetramerous (''Francoa, Tetilla, Melianthus''). In some genera some stamens (''Pelargonium'') or a complete whorl of stamens are reduced (''Erodium, Melianthus''). In the genera ''Hypseocharis'' and ''Monsonia'' there are 15 instead of the usual ten stamens. Most genera bear nectariferous flowers. The nectary glands are formed by the receptacle and are localised at the bases of the antesepalous stamens. The economic importance of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greyia Sutherlandii
''Greyia sutherlandii'', also known as Natal bottlebrush, is a species of plant in the Francoaceae family. It is endemic to 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 count ....Plants of the World Online. Available at: http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:783197-1 ccessed 16/02/21/ref> References External links PlantZAfrica.com Endemic flora of South Africa sutherlandii {{Geraniales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melianthaceae
The Melianthaceae are a family of flowering plants. The APG II system includes them within the rosid clade. All members of Melianthaceae proper are trees or shrubs found in tropical and southern Africa. Francoaceae (the Bridal wreaths) are sometimes included in the family, a family consisting of two monotypic genera found in Chile. Classification The family Greyiaceae is merged into Melianthaceae in the APG II system. The family Francoaceae is optionally included within Melianthaceae. Melianthaceae ''sensu stricto'' * '' Bersama'' - 8 species * '' Melianthus'' - 6 species Greyiaceae (included in Melianthaceae) * '' Greyia'' - three species Francoaceae The Francoaceae are a small family of flowering plants in the order Geraniales, including the genera ''Francoa'', commonly known as bridal wreaths, and ''Tetilla''. The Francoaceae are recognized as a family under various classification schemes b ... (sometimes included, sometimes a separate family) * '' Francoa'' - three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francoaceae
The Francoaceae are a small family of flowering plants in the order Geraniales, including the genera ''Francoa'', commonly known as bridal wreaths, and ''Tetilla''. The Francoaceae are recognized as a family under various classification schemes but under the APG III system the Francoaceae are included within the Melianthaceae. In the APG IV system the Francoaceae are again recognized as a family, with Melianthaceae included in the circumscription of Francoaceae. The Francoaceae are herbaceous perennials characterized by a basal aggregation of alternate petiolated leaves. The leaf blades (''lamina'') are either dissected, or entire. They are endemic to Chile. Genera *'' Balbisia'' *'' Bersama'' *''Francoa'' *'' Greyia'' *''Melianthus'' *''Rhynchotheca'' *''Tetilla ''Tetilla'' is a genus of flowering plants. It belongs to the family Francoaceae, which is sometimes included as part of the family Melianthaceae. It has historically been included in the Saxifragaceae. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APG IV System
The APG IV system of flowering plant classification is the fourth version of a modern, mostly molecular-based, system of plant taxonomy for flowering plants (angiosperms) being developed by the Angiosperm Phylogeny Group (APG). It was published in 2016, seven years after its predecessor the APG III system was published in 2009, and 18 years after the first APG system was published in 1998. In 2009, a linear arrangement of the system was published separately; the APG IV paper includes such an arrangement, cross-referenced to the 2009 one. Compared to the APG III system, the APG IV system recognizes five new orders ( Boraginales, Dilleniales, Icacinales, Metteniusales and Vahliales), along with some new families, making a total of 64 angiosperm orders and 416 families. In general, the authors describe their philosophy as "conservative", based on making changes from APG III only where "a well-supported need" has been demonstrated. This has sometimes resulted in placements that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plant
Plants are predominantly Photosynthesis, photosynthetic eukaryotes of the Kingdom (biology), kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclude the fungi and some algae, as well as the prokaryotes (the archaea and bacteria). By one definition, plants form the clade Viridiplantae (Latin name for "green plants") which is sister of the Glaucophyte, Glaucophyta, and consists of the green algae and Embryophyte, Embryophyta (land plants). The latter includes the flowering plants, conifers and other gymnosperms, ferns and Fern ally, their allies, hornworts, liverworts, and mosses. Most plants are multicellular organisms. Green plants obtain most of their energy from sunlight via photosynthesis by primary chloroplasts that are derived from endosymbiosis with cyanobacteria. Their chloroplasts contain chlorophylls a and b, which gives them their green colo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf
A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthesis, photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (Glossary of botanical terms#adaxial, adaxial) and lower (Glossary of botanical terms#abaxial, abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains '' microsporangia''. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. The sterile tissue between the lobes is called the connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The stamens in a flower are collectively called the androecium. The androecium can consist of as few as one-half stamen (i.e. a single locule) as in ''Canna'' species or as many as 3,482 stamens which have been counted in the saguaro (''Carnegiea gigantea''). The androecium in va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovary (plants)
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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