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Roepera Confluens
''Roepera'' is a genus of flowering plants in the family Zygophyllaceae, subfamily Zygophylloideae. It is native to Australia and south-western Africa, from Angola to South Africa. Description Species of ''Roepera'' are shrubs, subshrubs or herbaceous plants. The shrubby species may be up to tall. The leaves are opposite, with or without petioles, and have one or two leaflets. The flowers have four or five sepals, which persist in the fruit, and four or five petals of various colours. The eight to ten stamens usually have undivided appendages. The ovary has four or five locules (chambers). The fruit is usually a capsule, or more rarely a winged schizocarp. The seeds are mucilaginous and have a more-or-less well developed aril. Taxonomy The genus ''Roepera'' was first published by Adrien-Henri de Jussieu in 1825, for two Australian species of ''Zygophyllum''. However, de Jussieu did not actually publish the two new combinations, ''Roepera billardierei'' and ''Roepera fruticulosa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygophyllum
''Zygophyllum'' is the type genus of the flowering plant family Zygophyllaceae. The generic name is derived from the Greek language, Greek words ζυγόν (''zygon''), meaning "double", and φυλλον (''phyllon''), meaning "leaf". It refers to the leaves, each of which have two leaflet (botany), leaflets. The genus is distributed in arid and Semi-arid climate, semi-arid regions of Africa, the Mediterranean Basin, central Asia, Australia, and North and South America. Molecular phylogenetics, Molecular phylogenetic analysis suggested that as previously Circumscription (taxonomy), circumscribed, ''Zygophyllum'' was not Monophyly, monophyletic, and the genus was split among a number of other genera, including ''Augea (plant), Augea'', ''Fagonia'', ''Roepera'' and ''Tetraena''. , Plants of the World Online accepted only ''Roepera'' of these genera, regarding ''Augea'', ''Fagonia'' and ''Tetraena'' as synonyms of ''Zygophyllum''. Species , Plants of the World Online accepted 11 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roepera Angustifolia
''Roepera'' is a genus of flowering plants in the family Zygophyllaceae, subfamily Zygophylloideae. It is native to Australia and south-western Africa, from Angola to South Africa. Description Species of ''Roepera'' are shrubs, subshrubs or herbaceous plants. The shrubby species may be up to tall. The leaves are opposite, with or without petioles, and have one or two leaflets. The flowers have four or five sepals, which persist in the fruit, and four or five petals of various colours. The eight to ten stamens usually have undivided appendages. The ovary has four or five locules (chambers). The fruit is usually a capsule, or more rarely a winged schizocarp. The seeds are mucilaginous and have a more-or-less well developed aril. Taxonomy The genus ''Roepera'' was first published by Adrien-Henri de Jussieu in 1825, for two Australian species of ''Zygophyllum''. However, de Jussieu did not actually publish the two new combinations, '' Roepera billardierei'' and '' Roepera fruticulo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mats Ingmar Thulin
A mat is a hard or soft floor covering that generally is placed on a floor or other flat surface. Mats serve a range of purposes including: * serving to clean items passed over it, such as a doormat, which removes dirt from the soles of shoes * protecting that which is above the mat, such as a wrestling or gymnastics mat, or an anti-vibration mat * protecting that which is beneath the mat, such as a place mat or the matting used in archival framing and preservation of documents and paintings * providing a regular or flat surface, such as a cushioned computer mousepad Types In domestic settings * In homes or rooms where people sit predominantly on the floor (common in Japan, Korea, India, and formerly China), mats may cover entire rooms, or be used in certain areas for sitting or sleeping. The traditional Japanese style of mat is known as the tatami. Shoes are typically removed before entering these areas to keep out dirt and debris. * A doormat or door-mat is a flat, u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Von Mueller
Baron Sir Ferdinand Jacob Heinrich von Mueller, (; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Victoria, Australia by Governor Charles La Trobe in 1853, and later director of the Royal Botanic Gardens in Melbourne. He also founded the National Herbarium of Victoria. He named many Australian plants. Early life Mueller was born at Rostock, in the Grand Duchy of Mecklenburg-Schwerin. After the early death of his parents, Frederick and Louisa, his grandparents gave him a good education in Tönning, Schleswig. Apprenticed to a chemist at the age of 15, he passed his pharmaceutical examinations and studied botany under Professor Ernst Ferdinand Nolte (1791–1875) at Kiel University. In 1847, he received his degree of Doctor of Philosophy from Kiel for a thesis on the plants of the southern regions of Schleswig. Mueller's sister Bertha had been advi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roepera Ammophila
''Roepera'' is a genus of flowering plants in the family Zygophyllaceae, subfamily Zygophylloideae. It is native to Australia and south-western Africa, from Angola to South Africa. Description Species of ''Roepera'' are shrubs, subshrubs or herbaceous plants. The shrubby species may be up to tall. The leaves are opposite, with or without Petiole (botany), petioles, and have one or two leaflets. The flowers have four or five sepals, which persist in the fruit, and four or five petals of various colours. The eight to ten stamens usually have undivided appendages. The Ovary (botany), ovary has four or five locules (chambers). The fruit is usually a capsule, or more rarely a winged schizocarp. The seeds are Mucilage, mucilaginous and have a more-or-less well developed aril. Taxonomy The genus ''Roepera'' was first published by Adrien-Henri de Jussieu in 1825, for two Australian species of ''Zygophyllum''. However, de Jussieu did not actually publish the two new combinations, ''Roepe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Of The World Online
Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online in March 2017 with the goal of creating an exhaustive online database of all seed-bearing plants worldwide. (Govaerts wrongly speaks of "Convention for Botanical Diversity (CBD)). The initial focus was on tropical African flora, particularly flora ''Zambesiaca'', flora of West and East Tropical Africa. Since March 2024, the website has displayed AI-generated predictions of the extinction risk for each plant. Description The database uses the same taxonomical source as the International Plant Names Index, which is the World Checklist of Vascular Plants (WCVP). The database contains information on the world's flora gathered from 250 years of botanical research. It aims to make available data from projects that no longer have an online ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A ''polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyphyly
A polyphyletic group is an assemblage that includes organisms with mixed evolutionary origin but does not include their most recent common ancestor. The term is often applied to groups that share similar features known as homoplasies, which are explained as a result of convergent evolution. The arrangement of the members of a polyphyletic group is called a polyphyly .. ource for pronunciation./ref> It is contrasted with monophyly and paraphyly. For example, the biological characteristic of warm-bloodedness evolved separately in the ancestors of mammals and the ancestors of birds; "warm-blooded animals" is therefore a polyphyletic grouping. Other examples of polyphyletic groups are algae, C4 photosynthetic plants, and edentates. Many taxonomists aim to avoid homoplasies in grouping taxa together, with a goal to identify and eliminate groups that are found to be polyphyletic. This is often the stimulus for major revisions of the classification schemes. Researchers concerned m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Circumscription (taxonomy)
In biological taxonomy, circumscription is the content of a taxon, that is, the delimitation of which subordinate taxa are parts of that taxon. For example, if we determine that species X, Y, and Z belong in genus A, and species T, U, V, and W belong in genus B, those are our circumscriptions of those two genera. Another systematist might determine that T, U, V, W, X, Y, and Z all belong in genus A. Agreement on circumscriptions is not governed by the Codes of Zoological or Botanical Nomenclature, and must be reached by scientific consensus. A goal of biological taxonomy is to achieve a stable circumscription for every taxon. This goal conflicts, at times, with the goal of achieving a natural classification that reflects the evolutionary history of divergence of groups of organisms. Balancing these two goals is a work in progress, and the circumscriptions of many taxa that had been regarded as stable for decades are in upheaval in the light of rapid developments in molecu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molecular Phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to determine the processes by which diversity among species has been achieved. The result of a molecular phylogenetics, phylogenetic analysis is expressed in a phylogenetic tree. Molecular phylogenetics is one aspect of molecular systematics, a broader term that also includes the use of molecular data in Taxonomy (biology), taxonomy and biogeography. Molecular phylogenetics and molecular evolution correlate. Molecular evolution is the process of selective changes (mutations) at a molecular level (genes, proteins, etc.) throughout various branches in the tree of life (evolution). Molecular phylogenetics makes inferences of the evolutionary relationships that arise due to molecular evolution and results in the construction of a phylogenetic tre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
