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Cattleya Tigrina
''Cattleya tigrina'' is a bifoliate species of '' Cattleya'' orchid. The diploid chromosome number of ''C. tigrina'' has been determined as 2''n'' = 40.page 251 of L. P. Felix and M. Guerra: "Variation in chromosome number and the basic number of subfamily Epidendroideae (Orchidaceae)" ''Botanical Journal of the Linnean Society'' 163(2010)234—278. The Linnean Society of London. Downloaded October 2010 from http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.2010.01059.x/abstract Hybrids ''Cattleya × elegans'' is a hybrid orchid with a formula hybridae ''Cattleya purpurata ''Cattleya purpurata'', known in the past as ''Laelia purpurata'' and ''Sophronitis purpurata'', is native to Brazil where it is very popular among orchid growers. It is an epiphyte that is found in the canopy of tall trees near coastal areas, in ...'' (Lindl. & Paxton) Van den Berg (2008) × ''Cattleya tigrina'' A.Rich. (1848). It is found in South and South-East Brazil. References Ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cattleya
''Cattleya'' () is a genus of orchids from Costa Rica south to Argentina. The genus is abbreviated C in trade journals. Description Epiphytic or terrestrial orchids with cylindrical rhizome from which the fleshy noodle-like roots grow. Pseudobulbs can be conical, spindle-shaped or cylindrical; with upright growth; one or two leaves growing from the top of them. The leaves can be oblong, lanceolate or elliptical, somewhat fleshy, with smooth margin. The inflorescence is a terminal raceme with few or several flowers. Flowers have sepals and petals free from each other; the lip or labellum (lowermost petal), usually has a different coloration and shape from the rest of the flower and covers in part the flower column forming a tube. There are four polliniums (bag-like organs that contain pollen). The fruit is a capsule with many small seeds.Schweinfurth, C., "Orchidaceae, Orchids of Peru", ''Fieldiana, Botany'' 30(3): 535 Taxonomy The genus was named in 1824 by John Lindley af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orchid
Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowering plants. The Orchidaceae have about 28,000 currently accepted species, distributed in about 763 genera. (See ''External links'' below). The determination of which family is larger is still under debate, because verified data on the members of such enormous families are continually in flux. Regardless, the number of orchid species is nearly equal to the number of bony fishes, more than twice the number of bird species, and about four times the number of mammal species. The family encompasses about 6–11% of all species of seed plants. The largest genera are ''Bulbophyllum'' (2,000 species), ''Epidendrum'' (1,500 species), ''Dendrobium'' (1,400 species) and ''Pleurothallis'' (1,000 species). It also includes ''Vanilla'' (the genus of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diploid
Ploidy () is the number of complete sets of chromosomes in a cell, and hence the number of possible alleles for autosomal and pseudoautosomal genes. Sets of chromosomes refer to the number of maternal and paternal chromosome copies, respectively, in each homologous chromosome pair, which chromosomes naturally exist as. Somatic cells, tissues, and individual organisms can be described according to the number of sets of chromosomes present (the "ploidy level"): monoploid (1 set), diploid (2 sets), triploid (3 sets), tetraploid (4 sets), pentaploid (5 sets), hexaploid (6 sets), heptaploid or septaploid (7 sets), etc. The generic term polyploid is often used to describe cells with three or more chromosome sets. Virtually all sexually reproducing organisms are made up of somatic cells that are diploid or greater, but ploidy level may vary widely between different organisms, between different tissues within the same organism, and at different stages in an organism's life cycle. Half ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromosome
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones. These proteins, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation. Chromosomes are normally visible under a light microscope only during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form). Before this happens, each chromosome is duplicated ( S phase), and both copies are joined by a centromere, resulting either in an X-shaped structure (pictured above), if the centromere is located equatorially, or a two-arm structure, if the centromere is located distally. The joined copies are now called si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cattleya × Elegans
''Cattleya'' × ''elegans'' is a hybrid orchid in the subtribe Laeliinae. It is a pseudobulb epiphyte. Its formula hybridae is '' Cattleya purpurata'' (Lindl. & Paxton) Van den Berg (2008) × '' Cattleya tigrina'' A.Rich. (1848). It is found in South and South-East Brazil. References External links * * * ''Cattleya × elegans'' at the World Checklist of selected plant families''Cattleya × elegans''at Tropicos ''Cattleya × elegans'' at International Plant Name Index (IPNI) Plants described in 1848 elegans Orchids of Brazil Interspecific orchid hybrids {{Laeliinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cattleya Purpurata
''Cattleya purpurata'', known in the past as ''Laelia purpurata'' and ''Sophronitis purpurata'', is native to Brazil where it is very popular among orchid growers. It is an epiphyte that is found in the canopy of tall trees near coastal areas, in the Brazilian states of Rio Grande do Sul, Santa Catarina and São Paulo. The orchid favors bright light and cool to warm conditions and is relative easy to cultive. ''C. purpurata'' has been used extensively as a parent in hybridizing with Cattleyas. ''Cattleya purpurata'' blooms from late spring to fall with three to five flowers on a spike. The flowers are long-lasting and fragrant. Horticultural forms * C. purpurata f. alba; white lip, sepals and petals * C. purpurata f. carnea; pink lip, white sepals and petals * C. purpurata f. flammea; magenta lip, pink sepals and white petals * C. purpurata f. oculata; purple patches on lip, white sepals and petals * C. purpurata f. roxo-violeta; light reddish purple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bifoliate Cattleya
The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular or irregular, may be smooth or bearing hair, bristles or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from the same plant. For example, whether to call leaves on the same tree "acuminate", "lanceolate", or "linear" could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
