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Andesanthus
''Andesanthus'' is a genus of flowering plant in the family Melastomataceae, native to Colombia, Costa Rica, Ecuador, Panama, Peru and Venezuela. The genus was established in 2019 for some species formerly placed in ''Tibouchina''. Some species are cultivated as ornamental shrubs or trees. Description Species of ''Andesanthus'' are trees between 5 and 20 m tall at maturity or shrubs 1–3 m tall. Their leaves are opposite and petiolate (stalked). The inflorescence is a terminal panicle or some modification of a panicle. The flowers are perigynous wih a bell- or urn-shaped hypanthium, externally with many soft hairs (pubescent) in most species. The flowers have five free petals, which are pink, purple, magenta or white in colour, or initially magenta or rose-red fading to lavender with age. Flowers have ten stamens, either all the same size or in two distinct sizes. The connective at the base of the anther of the stamen is prolonged and modified into a bilobed v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesanthus Lepidotus
''Andesanthus lepidotus'', synonym ''Tibouchina lepidota'', also known as alstonville, Andean princess flower, lasiandra, or glory bush, is a medium-sized ornamental tree or a large shrub native to northwestern South America that is cultivated for its masses of purple flowers from autumn right through to winter. Description The plant is usually between to tall, but can be as tall as , creating a vase shape with a spread rounded crown and thick, ligneous, branching stems. The trunk measures up to in diameter at its base, with reddish. flaking bark. The evergreen leaves are dark green in colour, with lighter undersides and prominent longitudinal veins. They are coarsely hairy, simple, opposite, with a serrated edge, rounded base and a blunt tip. They measure long and wide. As the leaves age, they turn crimson and are covered by small scales that are brown in colour. Inflorescence The flowers range from violet or mauve to magenta, in diameter. The stamens are yellow in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tibouchina Lepidota, Known As Siete Cueros (9976451753)
''Tibouchina'' "Tibouchina." Webster's Third New International Dictionary of the English Language, Unabridged. Merriam Webster, 1961. is a neotropical flowering plant genus in the family Melastomataceae. Species of this genus are subshrubs, shrubs or small trees and typically have purple flowers. They are native to Mexico, the Caribbean, and South America where they are found as far south as northern Argentina. Members of this genus are known as glory bushes, glory trees or princess flowers. The name ''Tibouchina'' is adapted from a Guianan indigenous name for a member of this genus. A systematic study in 2013 showed that as then circumscribed the genus was paraphyletic, and in 2019 the genus was split into a more narrowly circumscribed ''Tibouchina'', two re-established genera '' Pleroma'' and ''Chaetogastra'', and a new genus, ''Andesanthus''. Description ''Tibouchina'' species are subshrubs, shrubs or small trees. Their leaves are opposite, usually with petioles, and often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tibouchina
''Tibouchina'' "Tibouchina." Webster's Third New International Dictionary of the English Language, Unabridged. Merriam Webster, 1961. is a Neotropical realm, neotropical flowering plant genus in the family Melastomataceae. Species of this genus are subshrubs, shrubs or small trees and typically have purple flowers. They are native to Mexico, the Caribbean, and South America where they are found as far south as northern Argentina. Members of this genus are known as glory bushes, glory trees or princess flowers. The name ''Tibouchina'' is adapted from a Guianan indigenous name for a member of this genus. A Systematics, systematic study in 2013 showed that as then Circumscription (taxonomy), circumscribed the genus was Paraphyly, paraphyletic, and in 2019 the genus was split into a more narrowly circumscribed ''Tibouchina'', two re-established genera ''Pleroma (plant), Pleroma'' and ''Chaetogastra'', and a new genus, ''Andesanthus''. Description ''Tibouchina'' species are subshrubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetogastra
''Chaetogastra'' is a genus of flowering plants belonging to the family Melastomataceae. Its native range is South America and North America. It contains around 115 species. Description Species of ''Chaetogastra'' are herbs, subshrubs, shrubs or small trees. Their leaves are opposite and have petioles. The inflorescence is a terminal panicle or some modification of one. The flowers are hypogynous, with a bell-shaped hypanthium (base of the flower), usually very hairy (pubescent) on the outside. There are four or five petals, usually dark lilac to purple, more rarely white, yellow or deep red. There are eight or ten stamens which may be all the same or in two series of different sizes. The connectives at the base of the anthers are prolonged, with two ventral lobes. The numerous seeds are borne in a dry, semiwoody capsule, and are more-or-less spiral (cochleate) in shape. Taxonomy The genus ''Chaetogastra'' was established by Augustin de Candolle in 1828. In 1885, in his treatmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melastomataceae
Melastomataceae is a family of dicotyledonous flowering plants found mostly in the tropics (two-thirds of the genera are from the New World tropics) comprising c. 175 genera and c. 5115 known species. Melastomes are annual or perennial herbs, shrubs, or small trees. Description The leaves of melastomes are somewhat distinctive, being opposite, decussate, and usually with 3-7 longitudinal veins arising either from the base of the blade, plinerved (inner veins diverging above base of blade), or pinnately nerved with three or more pairs of primary veins diverging from the mid-vein at successive points above the base. Flowers are perfect, and borne either singly or in terminal or axillary, paniculate cymes. Ecology A number of melastomes are regarded as invasive species once naturalized in tropical and subtropical environments outside their normal range. Examples are Koster's curse (''Clidemia hirta''), '' Pleroma semidecandrum'' and ''Miconia calvescens'', but many other specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plastid
The plastid (Greek: πλαστός; plastós: formed, molded – plural plastids) is a membrane-bound organelle found in the Cell (biology), cells of plants, algae, and some other eukaryotic organisms. They are considered to be intracellular endosymbiotic cyanobacteria. Examples include chloroplasts (used for photosynthesis), chromoplasts (used for pigment synthesis and storage), and leucoplasts (non-pigmented plastids that can sometimes differentiate). The event which led to permanent endosymbiosis in the Archaeplastida clade (of Embryophyte, land plants, red algae, and green algae) probably occurred with a cyanobiont (a symbiotic cyanobacteria) related to the genus ''Gloeomargarita lithophora, Gloeomargarita'', around 1.5 billion years ago. A later primary endosymbiosis event occurred in photosynthetic ''Paulinella'' amoeboids about 90–140 million years ago. This plastid belongs to the "PS-clade" (of the cyanobacteria genera ''Prochlorococcus'' and ''Synechococcus''). Chloroplas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andes
The Andes, Andes Mountains or Andean Mountains (; ) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. The range is long, wide (widest between 18°S – 20°S latitude), and has an average height of about . The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Along their length, the Andes are split into several ranges, separated by intermediate depressions. The Andes are the location of several high plateaus—some of which host major cities such as Quito, Bogotá, Cali, Arequipa, Medellín, Bucaramanga, Sucre, Mérida, El Alto and La Paz. The Altiplano plateau is the world's second-highest after the Tibetan plateau. These ranges are in turn grouped into three major divisions based on climate: the Tropical Andes, the Dry Andes, and the Wet Andes. The Andes Mountains are the highest m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Cogniaux
Célestin Alfred Cogniaux (7 April 1841 – 15 April 1916) was a Belgian botanist. Amongst other plants, the genus '' Neocogniauxia'' of orchids is named after him. In 1916 his enormous private herbarium was acquired by the National Botanic Garden of Belgium. Publications * De Saldanha da Gama, J., Cogniaux, A. ''Bouquet de Mélastomacées brésiliennes dédiées a Sa Majesté Dom Pedro II empereur du Brésil''. A. Remacle, 1887 Verviers. * Cogniaux, A., ''Melastomaceae''. G. Masson, Paris, 1891 * Cogniaux, Alfredus, ''Orchidaceae''. Vol. III, part IV, V and VI of ''Flora Brasiliensis ''Flora Brasiliensis'' is a book published between 1840 and 1906 by the editors Carl Friedrich Philipp von Martius, August Wilhelm Eichler, Ignatz Urban and many others. It contains taxonomic treatments of 22,767 species, mostly Brazilian angiosp ...''. Lipsiae, Frid. Fleischer, 1893–1906 * Linden, L., Cogniaux, A. & Grignan, G., ''Les orchidées exotiques et leur culture en Europe'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics (; from Greek language, Greek wikt:φυλή, φυλή/wikt:φῦλον, φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, Protein, protein Amino acid, amino acid sequences, or Morphology (biology), morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell Nucleus
The cell nucleus (pl. nuclei; from Latin or , meaning ''kernel'' or ''seed'') is a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm; and the nuclear matrix, a network within the nucleus that adds mechanical support. The cell nucleus contains nearly all of the cell's genome. Nuclear DNA is often organized into multiple chromosomes – long stands of DNA dotted with various proteins, such as histones, that protect and organize the DNA. The genes within these chromosomes are structured in such a way to promote cell function. The nucleus maintains the integrity of genes and controls the activities of the cell by regulating gene expres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petal
Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include Genus, genera such as ''Aloe'' and ''Tulipa''. Conversely, genera such as ''Rose, Rosa'' and ''Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly colored tepals. Sinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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