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Iris Cypriana
''Iris cypriana'' is a plant species in the genus ''Iris'', it is also in the subgenus ''Iris''. It is a rhizomatous perennial, from Cyprus. It has narrow, glaucous and evergreen leaves, tall slender stem, with 2–3 branches, and 1–3 large flowers in lavender, lilac, red-lilac, to dark purple shades. It is cultivated as an ornamental plant in temperate regions. It is listed in some sources as a synonym of ''Iris germanica''. Description It has long and horizontal rhizomes and numerous secondary roots (underneath the rhizome), they are similar in form to other bearded irises. It has 2–3 basal, narrow, ensiform (sword shaped), glaucous and evergreen leaves.British Iris Society (1997) They can grow up to long, and between wide. They are narrower than '' Iris mesopotamica'' leaves. They are finely and irregularly ribbed. The leaves, soon die after flowering, then compared to ''Iris junonia'', the leaves re-grow in autumn. They are larger enough, that during winter they can be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gilbert Baker
John Gilbert Baker (13 January 1834 – 16 August 1920) was an English botanist. His son was the botanist Edmund Gilbert Baker (1864–1949). Biography Baker was born in Guisborough in North Yorkshire, the son of John and Mary (née Gilbert) Baker, and died in Kew. He was educated at Quaker schools at Ackworth School and Bootham School, York. He then worked at the library and herbarium of the Royal Botanic Gardens, Kew between 1866 and 1899, and was keeper of the herbarium from 1890 to 1899. He wrote handbooks on many plant groups, including Amaryllidaceae, Bromeliaceae, Iridaceae, Liliaceae, and ferns. His published works includ''Flora of Mauritius and the Seychelles''(1877) and ''Handbook of the Irideae'' (1892). He married Hannah Unthank in 1860. Their son Edmund was one of twins, and his twin brother died before 1887. John G. Baker was elected a Fellow of the Royal Society in 1878. He was awarded the Veitch Memorial Medal of the Royal Horticultural Society in 1907. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perianth
The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower, and structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepals when called a perigone. The term ''perianth'' is derived from Greek περί (, "around") and άνθος (, "flower"), while ''perigonium'' is derived from περί () and γόνος (, "seed, sex organs"). In the mosses and liverworts (Marchantiophyta), the perianth is the sterile tubelike tissue that surrounds the female reproductive structure (or developing sporophyte). Flowering plants In flowering plants, the perianth may be described as being either dichlamydeous/heterochlamydeous in which the calyx and corolla are clearly separate, or homochlamydeous, in which they are indistinguishable (and the sepals and petals are collectively referred to as tepals). When the perianth is in two whorls, it is described as biseriate. While the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Matthew
Brian Matthew (17 September 1928 – 8 April 2017) was an English broadcaster who worked for the BBC for 63 years from 1954 until 2017. He was the host of '' Saturday Club'', among other programmes, and began presenting ''Sounds of the 60s'' in March 1990, often employing the same vocabulary and the same measured delivery he had used in previous decades. In January 2017, after a short break from the programme after suffering a fall at home, the BBC announced, against Matthew's wishes, that he would not be returning to the programme and that he would be replaced. He was succeeded by Tony Blackburn. Matthew later died of pneumonia on 8 April 2017, aged 88. Early life Matthew was born on 17 September 1928 in Coventry, Warwickshire, the son of musical parents. His father was a conductor of the Coventry Silver Band and his mother a professional singer. He was educated at the city's Bablake School. Career Matthew first broadcast in Germany in 1948, and trained as an actor at RADA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Variegata
''Iris variegata'', commonly known as the Hungarian iris, is a plant species in the genus ''Iris'', also in the subgenus ''Iris''. It is a rhizomatous perennial from eastern Europe. It has dark green, ribbed leaves. The branched flowering stems can be as tall as the leaves, they can hold 2–3 flowers in summer. They are yellowish-white, with brown-purple veins on the drooping falls. It is very hardy and it is commonly cultivated as an ornamental plant in temperate regions. There are several cultivars. Description ''Iris variegata'' has often been confused for '' Iris pallida 'Argentea Variegata'', which has variegated leaves. But ''Iris variegata'' has variegated flowers. It has stout rhizome, with roots that can go up to 10 cm deep in the ground. It has leaves that are around 1–3 cm wide, dark green, ribbed leaves. They are slightly falcate (sword shaped). It can be variable in height in the wild (30–45 cm). Generally, it grows up to 45 cm (18 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Gardeners' Chronicle
''The Gardeners' Chronicle'' was a British horticulture periodical. It lasted as a title in its own right for nearly 150 years and is still extant as part of the magazine ''Horticulture Week''. History Founded in 1841 by the horticulturists Joseph Paxton, Charles Wentworth Dilke, John Lindley and the printer William Bradbury it originally took the form of a traditional newspaper, with both national and foreign news, but also with vast amounts of material sent in by gardeners and scientists, covering every conceivable aspect of gardening. Its first editor, John Lindley, was one of the founders. Another founder, Paxton, later also became editor. Prominent contributors included Charles Darwin and Joseph Hooker. By 1851, the circulation of ''The Gardeners' Chronicle'' was given as 6500. Compared with that of the far more eminent ''Observer'' at 6230, and ''The Economist'' at 3826, ''The Gardeners' Chronicle'' did astonishingly well. Possibly these figures include the Chronicle's lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botanical Name
A botanical name is a formal scientific name conforming to the '' International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the ''International Code of Nomenclature for Cultivated Plants'' (ICNCP). The code of nomenclature covers "all organisms traditionally treated as algae, fungi, or plants, whether fossil or non-fossil, including blue-green algae ( Cyanobacteria), chytrids, oomycetes, slime moulds and photosynthetic protists with their taxonomically related non-photosynthetic groups (but excluding Microsporidia)." The purpose of a formal name is to have a single name that is accepted and used worldwide for a particular plant or plant group. For example, the botanical name ''Bellis perennis'' denotes a plant species which is native to most of the countries of Europe and the Middle East, where it has accumulated various names in many languages. Later, the plant was intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetraploid
Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains one or more chromosomes and comes from each of two parents, resulting in pairs of homologous chromosomes between sets. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by meio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromosomes
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 sis ... [...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] |
Iris Pallida
''Iris pallida'', the Dalmatian iris or sweet iris, is a hardy flowering perennial plant of the genus ''Iris'', family Iridaceae. It is native to the Dalmatian coast (Croatia) but widely naturalised elsewhere. It is a member of the subgenus ''Iris'', meaning that it is a bearded iris, and grows from a rhizome. Description This iris prefers rocky places in the Mediterranean and Submediterranean zone and reaches sometimes montane regions at its southern range in Montenegro. It grows to a stem height of . The leaves are bluish-green in color, and sword-shaped, in length, and in width. The inflorescence, produced in May/June, is fan-shaped and contains two or three flowers which are usually pale purplish to whitish. Cultivation It is cultivated as a garden plant, and commercially for extraction of essential oils from its rhizome (orris root). The variegated cultivar 'Variegata' has gained the Royal Horticultural Society's Award of Garden Merit. Subspecies Three subspecies of ''I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Croatica
''Iris croatica'' is a bearded rhizomatous species of iris (subgenus ''Iris'') endemic to Croatia. Description It has branched stems and dark violet flowers. Like other irises, it has 2 pairs of petals, 3 large sepals (outer petals), known as the 'falls' and 3 inner, smaller petals (or tepals), known as the 'standards'. The standards are slightly paler than the falls, they have white veining on the throat. It has a beard which is whitish yellow, and the spathes are slightly tinged with red-violet, like those of ''Iris aphylla''. Biochemistry As most irises are diploid, having two sets of chromosomes, this can be used to identify hybrids and classification of groupings. It was counted as 4n=48 (making it a tetraploid). Taxonomy It was described in 1962 by botanists Ivo and Marija Horvat, in 'Acta Bot. Croatica', Issue 20–21 on page 8. Then in 1981, Brian Mathew in his book 'The iris', reclassified it a synonym of ''Iris germanica''. Distribution and habitat ''Iris croatica'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Kashmiriana
''Iris kashmiriana'' is a plant species in the genus ''Iris'', it is also in the subgenus ''Iris''. It is a rhizomatous perennial, from Kashmir, India. It has straight, sword-shaped, glaucous leaves, tall, thick stem with up 2 short branches, which hold 2–3 flowers, which can be white, cream or pale blue, lilac, lavender or blue-purple. It is cultivated as an ornamental plant in temperate regions, although in Kashmir, it is also planted on graves. Description It has thick and stout rhizome,British Iris Society (1997) which is fibrous, and creeps along the ground. It has ensiform (sword-like), yellowish-green, or glaucous (blue-green), straight, leaves. They have scarious (paper-like) margins, and ribs. The herbaceous leaves, can grow up to between long, and between wide. It has an oval (in cross-section), thick stem or peduncle,Kelly Norris that can grow up to between tall. Occasionally, it can reach up to tall. It has 1–2 short, 1 cm long, branches (or pedicels ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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