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Pachypodium Geayi
''Pachypodium geayi'' is a species of ''Pachypodium'' that originated from Southwest Madagascar. It has a metallic grey pachycaul trunk and the leaves are thin and grey-green, with a bright pink mid-rib. The plant has white flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...s. ''Pachypodium geayi'' is one of the largest of the Madagascar species. Gallery image:Pachypodium geayi.JPG, The trunk of ''Pachypodium geayi'' Image:Pachypodium geayi1.jpg, Pachypodium geayi (1) 1200.jpg, Flower of ''Pachypodium geayi'' References * {{Taxonbar, from=Q144916 geayi Endemic flora of Madagascar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longwood Gardens
Longwood Gardens is a botanical garden that consists of over 1,077 acres (436 hectares; 4.36 km2) of gardens, woodlands, and meadows in Kennett Square, Pennsylvania, United States in the Brandywine Creek Valley. It is one of the premier horticultural display gardens in the United States and is open to visitors year-round to enjoy native and exotic plants and horticulture (both indoor and outdoor), events and performances, seasonal and themed attractions, as well as educational lectures, courses, and workshops. History Longwood Gardens has a long varied history. For thousands of years, the native Lenni Lenape tribe fished its streams, hunted its forests, and planted its fields. Evidence of the tribe's existence is found in quartz spear points that have been discovered on and around the property and can be found on display in the Peirce-du Pont House on the Longwood Gardens property. In 1700, a Quaker farmer named George Peirce purchased 402 acres of this English-claimed l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Julien Noël Costantin
Julien Noël Costantin (16 August 1857 – 17 November 1936) was a French botanist and mycologist who was a native of Paris. He studied at École Normale Supérieure on the Rue d'Ulm. In 1881 he received his license in natural history and two years later earned his doctorate. In 1883 he was appointed adjunct professor at Bordeaux, and through influence from Philippe Van Tieghem (1839-1914), became an assistant naturalist at the Muséum national d'histoire naturelle shortly afterwards. In 1887 Costantin became a lecturer of botany at Ecole Normale Superieure. In 1901 he succeeded Marie Maxime Cornu (1843-1901) as chair of horticulture at the museum of natural history. Along with these duties, he taught classes at the École nationale d’horticulture in Versailles and at the École supérieure coloniale in Nogent-sur-Marne. In 1912 he became a member of the French Academy of Sciences. Costantin defended Lamarckian evolution until his death in 1936.Loison, Laurent. (2011). ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Désiré Georges Jean Marie Bois
Désiré Georges Jean Marie Bois (9 October 1856, in Granville – 2 February 1946, in Saint-Mandé) was a French botanist, horticulturist and agronomist. From 1920 to 1932 he was chair of horticulture at the Muséum national d'histoire naturelle. He was in charge of several scientific excursions, including trips to Haute-Savoie (1922) and to Belgium and the Netherlands (1932). He also taught classes at the École Nationale de la France d'Outre-Mer.Biography He was a member of numerous scientific societies, including the Académie des sciences coloniales (from 1925). In 1920 he was named president of the |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachypodium
''Pachypodium'' is a genus of succulent spine-bearing trees and shrubs, native to Madagascar and Africa. It belongs to the family Apocynaceae. Genus characteristics All ''Pachypodium'' are succulent plants that exhibit, to varying degrees, the morphological characteristics of pachycaul trunks and spinescence. These are the most general features of the genus and can be considered distinguishing characteristics. The pachycaul trunk is a morphologically enlarged trunk that stores water so as to survive seasonal drought or intermittent periods of root desiccation in exposed, dry, and rocky conditions. Whereas there is great variation in the habit of the plant body, all ''Pachypodium'' exhibit pachycaul growth. Variation in habit can range from dwarf flattened plants to bottle shaped shrubs to dendroid-shaped trees. The second general characteristic of ''Pachypodium'' is spinescence, or having spines. The spines come clustered in either pairs or triplets with these clusters o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madagascar
Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa across the Mozambique Channel. At Madagascar is the world's second-largest island country, after Indonesia. The nation is home to around 30 million inhabitants and consists of the island of Madagascar (the fourth-largest island in the world), along with numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian subcontinent around 90 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of its wildlife is endemic. Human settlement of Madagascar occurred during or before the mid first millennium AD by Austronesian peoples, presumably arriving on outrigger cano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pachycaul
Pachycauls are plants with a disproportionately thick trunk for their height, and few branches. This can be the product of exceptional primary growth (as with palms and cycads) or disproportioate secondary growth as with Adansonia. The word is derived from the Greek ''pachy-'' meaning thick or stout, and Latin ''caulis'' meaning the stem. All of the tree (and treelike) species of cactus are pachycauls, as are most palms, Cycads and pandans. The most extreme pachycauls are the floodplains, or riverbottom variety of the African Palmyra ( Borassus aethiopum) with primary growth up to seven feet (2.1 meters) in thickness, and the Coquito Palm ( Jubaea chilensis) with primary growth up to six feet (1.8 meters) thick. The most pachycaulous cycad is Cycas thouarsii at up to five feet (150 centimeters) in diameter. The tallest pachycaul is the Andean Wax Palm ( Ceroxylon quindiuense) at up to 220 feet (66 meters). and about 16 inches (41 cm) in diameter. The most pachycaulous ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) resulting from cross-pollination or allow selfing (fusion of sperm and egg from the same flower) when self-pollination occurs. There are two types of pollination: self-pollination and cross-pollination. Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is when pollen is transferred from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination happens in flowers where the stamen and carpel mature at the same time, and are posi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
