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Acacallis (plant)
''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiphytic climbing orchids occur in mountainous or savanna forests and alongside rivers in Trinidad, Brazil, Colombia, Venezuela, Guyana, French Guiana, Suriname and Peru. Aganisia produce pseudobulbs and small flowers produced from a creeping rhizome. These flowers generally reach 4 cm in width. Their color varies from a rose-tinted violet to a blue-tinted violet. The flower has a short column foot and an elongate stipe.Forzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro They are rarely cultivated. Species Four species are currently recognized (May 2014): * ''Aganisia cyanea'' (Lindl.) Rchb.f. - Blue orchid - Venezuela, Colombia, Peru, Brazil * '' Aganisia fimbriata'' Rchb.f. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aganisia Cyanea
''Aganisia cyanea'' (formerly ''Acacallis cyanea'') is a showy species of orchid native to Colombia, Venezuela, Peru and Brazil and widely cultivated elsewhere as an ornamental. It is remarkable because some cultivars of this species produce blue flowers, the color blue being quite rare among the orchids. They are considered difficult to maintain in cultivation without a controlled growing environment.''Illustrated Encyclopedia of Orchids'' Biology ''Aganisia cyanea'' is found in very wet, lowland rain forests in northern South America growing on lower sections of the trunks of large trees. The plants can be submerged under water during monsoons for several weeks due to flooding in habitat with no apparent harm.''The Orchids, Natural History and Classification'', Robert L. Dressler. The plants grow from a creeping rhizome with inter-spaced pseudobulbs with one apical, usually pleated leaf. These plants bloom from the base of the pseudobulbs, and produce a raceme of up to 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower
Flowers, also known as blooms and blossoms, are the reproductive structures of flowering plants ( angiosperms). Typically, they are structured in four circular levels, called whorls, around the end of a stalk. These whorls include: calyx, modified leaves; corolla, the petals; androecium, the male reproductive unit consisting of stamens and pollen; and gynoecium, the female part, containing style and stigma, which receives the pollen at the tip of the style, and ovary, which contains the ovules. When flowers are arranged in groups, they are known collectively as inflorescences. Floral growth originates at stem tips and is controlled by MADS-box genes. In most plant species flowers are heterosporous, and so can produce sex cells of both sexes. Pollination mediates the transport of pollen to the ovules in the ovaries, to facilitate sexual reproduction. It can occur between different plants, as in cross-pollination, or between flowers on the same plant or even the same f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiphytic Orchids
An epiphyte is a plant or plant-like organism that grows on the surface of another plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phorophytes. Epiphytes take part in nutrient cycles and add to both the diversity and biomass of the ecosystem in which they occur, like any other organism. In some cases, a rainforest tree's epiphytes may total "several tonnes" (several long tons). They are an important source of food for many species. Typically, the older parts of a plant will have more epiphytes growing on them. Epiphytes differ from parasites in that they grow on other plants for physical support and do not necessarily affect the host negatively. An organism that grows on another organism that is not a plant may be called an epibiont. Epiphytes are usually found in the temperate zone (e.g., many mosses, liverworts, lichens, and algae) or in the trop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygopetalinae Genera
Zygopetalinae is an orchid subtribe in the tribe Cymbidieae with 418 species. Description Orchids in Zygopetalinae are mostly epiphytic but can be terrestrial, with pseudobulbs of one or several internodes or slender stems. All genera but one are sympodial. Leaves are convolute or duplicate, plicate, and articulate, with a smooth cuticle. Inflorescences of one to several spiral flowers rise from young shoots laterally. Flowers vary in size and can be resupinate. Columns can be winged or flattened and usually have a distinct foot. The anther can be either terminal or ventral, with an operculum. Velamen resembles that of the genus ''Cymbidium''. Plants have 46, 48, or 52 chromosomes. Genera Genera include: Distribution and habitat Species of the subtribe occur throughout the American tropics, from southern Mexico in North America to northern Argentina and Bolivia in South America. The northernmost species are of the genera '' Kefersteinia'' and '' Stenotyla'' in North Amer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aganisia
''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiphytic climbing orchids occur in mountainous or savanna forests and alongside rivers in Trinidad, Brazil, Colombia, Venezuela, Guyana, French Guiana, Suriname and Peru. Aganisia produce pseudobulbs and small flowers produced from a creeping rhizome. These flowers generally reach 4 cm in width. Their color varies from a rose-tinted violet to a blue-tinted violet. The flower has a short column foot and an elongate stipe.Forzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro They are rarely cultivated. Species Four species are currently recognized (May 2014): * '' Aganisia cyanea'' (Lindl.) Rchb.f. - Blue orchid - Venezuela, Colombia, Peru, Brazil * '' Aganisia fimbriata'' Rchb.f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rondônia
Rondônia () is one of the 26 states of Brazil, located in the northern subdivision of the country (central-western part). It is bordered by Acre (state), Acre in the west, Amazonas, Brazil, Amazonas in the north, Mato Grosso in the east, and Bolivia in the south. Rondônia has a population of 1,815,000 as of 2021. It is the fifth least populated state. Its capital and largest city is Porto Velho, bathed by the Madeira River. The state was named after Cândido Rondon, who explored the north of the country during the 1910s. The state, which is home to c. 0.7% of the Brazilian population, is responsible for c. 0.3% of the Brazilian GDP. The state has 52 municipalities and occupies an area of 237,590.547 Square kilometre, km2, equivalent to the territory of Romania and almost five times larger than Croatia. In addition to this, there are other important cities such as Ariquemes, Cacoal, Guajará-Mirim, Ji-Paraná, Rolim de Moura and Vilhena. Geography Rondonia used to be home to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aganisia Rosariana
''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiphytic climbing orchids occur in mountainous or savanna forests and alongside rivers in Trinidad, Brazil, Colombia, Venezuela, Guyana, French Guiana, Suriname and Peru. Aganisia produce pseudobulbs and small flowers produced from a creeping rhizome. These flowers generally reach 4 cm in width. Their color varies from a rose-tinted violet to a blue-tinted violet. The flower has a short column foot and an elongate stipe.Forzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro They are rarely cultivated. Species Four species are currently recognized (May 2014): * ''Aganisia cyanea'' (Lindl.) Rchb.f. - Blue orchid - Venezuela, Colombia, Peru, Brazil * '' Aganisia fimbriata'' Rchb.f. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aganisia Pulchella
''Aganisia pulchella'' is a species of orchid native to Trinidad, French Guiana, Suriname, Guyana, Venezuela, Brazil. It is the type species of the genus ''Aganisia ''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiph ...''.Hokche, O., P. E. Berry & O. Huber. (eds.) 2008. Nuevo Catálogo de la Flora Vascular de Venezuela 1–860. Fundación Instituto Botánico de Venezuela, Caracas. References External links * *photo of herbarium specimen at Missouri Botanical Garden, collected in Venezuela, ''Aganisia pulchella'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aganisia Fimbriata
''Aganisia'' is a small South American genus in the orchid family (Orchidaceae), subfamily Epidendroideae. The genus was named after the Greek word ‘agnos’ (gratitude), perhaps referring to the sweet scent of its flowers. These dwarf, epiphytic climbing orchids occur in mountainous or savanna forests and alongside rivers in Trinidad, Brazil, Colombia, Venezuela, Guyana, French Guiana, Suriname and Peru. Aganisia produce pseudobulbs and small flowers produced from a creeping rhizome. These flowers generally reach 4 cm in width. Their color varies from a rose-tinted violet to a blue-tinted violet. The flower has a short column foot and an elongate stipe.Forzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro They are rarely cultivated. Species Four species are currently recognized (May 2014): * ''Aganisia cyanea'' (Lindl.) Rchb.f. - Blue orchid - Venezuela, Colombia, Peru, Brazil * '' Aganisia fimbriata'' Rchb.f. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Column (botany)
The column, or technically the gynostemium, is a reproductive structure that can be found in several plant families: Aristolochiaceae, Orchidaceae, and Stylidiaceae. It is derived from the fusion of both male and female parts (stamens and pistil) into a single organ. The top part of the column is formed by the anther, which is covered by an anther cap. This means that the ''style'' and ''stigma'' of the pistil, with the filaments and one or more anthers, are all united. Orchidaceae The stigma sits at the apex of the column in the front but is pointing downwards after resupination (the rotation by 180 degrees before unfolding of the flower). This stigma has the form of a small bowl, the clinandrium, a viscous surface embedding the (generally) single anther. On top of it all is the anther cap. Sometimes there is a small extension or little beak to the median stigma lobe, called rostellum. Column wings may project laterally from the stigma. The column foot is formed by th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhizome
In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and Shoot (botany), shoots from its Node (botany), nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow horizontally. The rhizome also retains the ability to allow new shoots to grow upwards. A rhizome is the main stem of the plant that runs typically underground and horizontally to the soil surface. Rhizomes have nodes and internodes and auxiliary buds. Roots do not have nodes and internodes and have a root cap terminating their ends. In general, rhizomes have short internodes, send out roots from the bottom of the nodes, and generate new upward-growing shoots from the top of the nodes. A stolon is similar to a rhizome, but stolon sprouts from an existing stem having long internodes and generating new shoots at the ends, they are often also called runners such as in the strawberry plant. A stem tuber is a thickene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
