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Arthrochilus Huntianus
''Arthrochilus huntianus'', commonly known as common elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to south-eastern Australia. It has no leaves but an insect-like flower which has its labellum dangling like a lure away from the rest of the flower. Because of its thin, wiry stem and small, dull-coloured flowers, this orchid is difficult to locate. Like others in the genus, the flowers are pollinated by a species of thynnid wasp. Some authorities use the name ''Thynninorchis huntiana'' for this orchid. Description ''Arthrochilus huntianus'' is a leafless terrestrial, perennial, deciduous, sympodial herb with an underground tuber which produces daughter tubers on the end of root-like stolons. Up to ten insect-like flowers long and about wide are borne on a thin, wiry, green to reddish flowering stem tall. There are two, three or four bracts at the base of the flowering stem. The dorsal sepal and petals are long about wide and the lateral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lerderderg State Park
Lerderderg State Park (incorporating the former Pyrete State Forest) is a 14,250-hectare park located between Bacchus Marsh and Blackwood, an hour's drive from Melbourne, Australia. The park is part of an Aboriginal cultural landscape in the traditional country of the Wurundjeri People. There are several maintained tracks for walking through the park and camping is allowed. The park is named for the Lerderderg River which has cut the 300-metre-deep Lerderderg Gorge through sandstone and slate, almost bisecting the park. Parks Victoria maintains six designated walks: three short walks of 3.5 km or less; Blackwood-O'Briens Crossing and return (22 km); O'Briens Crossing-Cowan Track loop (14 km); and the overnight walk O'Briens Crossing to Mackenzies Flat (20 km). In addition, one leg of the Great Dividing Trail, the Lerderderg Track, passes through the park, entering from Blackwood in the park's northwest, and exiting south towards Bacchus Marsh. Bicyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petal
Petals are modified leaves that surround the reproductive parts of flowers. They are often 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 genera such as '' Aloe'' and '' Tulipa''. Conversely, genera such as ''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. Since they include Liliales, an alte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-pollination
Self-pollination is a form of pollination in which pollen from the same plant arrives at the stigma of a flower (in flowering plants) or at the ovule (in gymnosperms). There are two types of self-pollination: in autogamy, pollen is transferred to the stigma of the same flower; in geitonogamy, pollen is transferred from the anther of one flower to the stigma of another flower on the same flowering plant, or from microsporangium to ovule within a single (monoecious) gymnosperm. Some plants have mechanisms that ensure autogamy, such as flowers that do not open ( cleistogamy), or stamens that move to come into contact with the stigma. The term selfing that is often used as a synonym, is not limited to self-pollination, but also applies to other types of self-fertilization. Occurrence Few plants self-pollinate without the aid of pollen vectors (such as wind or insects). The mechanism is seen most often in some legumes such as peanuts. In another legume, soybeans, the flowers ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Cunninghamii
''Nothofagus cunninghamii,'' commonly known as myrtle beech or Tasmanian myrtle, is the dominant species of cool temperate rainforests in Tasmania and Southern Victoria. It has low fire resistance and grows best in partial shade conditions. It has rough bark covered in mosses and epiphytic growth. Its leaves are triangular-shaped, small, and dark green with differentiated margins. It has white unisexual flowers. Description & Habit ''N. cunninghamii'' range from trees of up to 50 meters in protected rainforest valleys to low-growing alpine shrubs less than 1 m tall in exposed conditions. Maximum height is about 55 m. The leaves are simple and alternate, growing 0.5–1.5 cm long, and in Victoria up to 2 cm (0.8 in) long. The leaves are dark green, with new growth brilliant red, pink or orange in spring. They are triangular with irregular minute teeth with craspedodromous veins with all secondary veins terminate at leaf margins and spread from a central primar ... [...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 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mark Alwin Clements
Mark Alwin Clements (b. 1949) is an Australian botanist and orchidologist. He obtained his doctorate at the Australian National University defending his thesis entitled ''Reproductive Biology in relation to phylogeny of the Orchidaceae, especially the tribe Diurideae''. In 2008 he was a researcher at the Center for Research on Plant Biodiversity at the Australian National Botanic Gardens in Canberra. As of January 2012, it had identified and classified 1,992 new species. Publications * * Indsto, JO; Weston PH; Clements MA; Dyer AG; Batley M; Whelan RJ. 2006''Pollination of ''Diuris maculata'' (Orchidaceae) by male ''Trichocolletes venustus'' bees'' Australian Journal of Botany 54 (7): 669 * MA Clements. 2006''Molecular phylogenetic systematics in Dendrobieae (Orchidaceae)'' Aliso 22: 465—480 * Indsto, JO; PH Weston; MA Clements; RJ Whelan. 2005. ''Highly sensitive DNA fingerprinting of orchid pollinaria remnants using AFLP''. Australian Systematic Botany 18 (3): 207 - ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David L
David (; , "beloved one") (traditional spelling), , ''Dāwūd''; grc-koi, Δαυΐδ, Dauíd; la, Davidus, David; gez , ዳዊት, ''Dawit''; xcl, Դաւիթ, ''Dawitʿ''; cu, Давíдъ, ''Davidŭ''; possibly meaning "beloved one". was, according to the Hebrew Bible, the third king of the United Kingdom of Israel. In the Books of Samuel, he is described as a young shepherd and harpist who gains fame by slaying Goliath, a champion of the Philistines, in southern Canaan. David becomes a favourite of Saul, the first king of Israel; he also forges a notably close friendship with Jonathan, a son of Saul. However, under the paranoia that David is seeking to usurp the throne, Saul attempts to kill David, forcing the latter to go into hiding and effectively operate as a fugitive for several years. After Saul and Jonathan are both killed in battle against the Philistines, a 30-year-old David is anointed king over all of Israel and Judah. Following his rise to power, D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donald Frederick Blaxell
Donald Frederick Blaxell (born 1 February 1934, Sydney, New South Wales), is an Australian botanist, botanical collector and taxonomist. Blaxell worked at the University of New South Wales for 11 years and joined the New south Wales Herbarium in 1968. He was particularly interested in plants from family ''Orchidaceae'' and the genus ''Eucalyptus''. He worked extensively with Lawrence Alexander Sidney Johnson through the 1960s completing descriptions of many species. He was also an avid collector, particularly ''Eucalyptus'' species, usually with Johnson or L D. Pryor. Blaxell was appointed as the Australian Botanical Liaison Officer at Kew Gardens between 1974 and 1975. In 2001, he was awarded an OAM in the Australia Day honours. ''Eucalyptus blaxellii'' was named in his honour by L.A.S.Johnson Lawrence Alexander Sidney Johnson FAA, (26 June 1925 – 1 August 1997) known as Lawrie Johnson, was an Australian taxonomic botanist. He worked at the Royal Botanic Gardens, Sydne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Victorian Naturalist
''The Victorian Naturalist'' is a bimonthly scientific journal covering natural history, especially of Australia. It is published by the Field Naturalists Club of Victoria and is received as part of the membership subscription of that club. From 1881, club proceedings and papers had been published in the ''Southern Science Record and Magazine of Natural History'' before the first issue of ''The Victorian Naturalist'' appeared in January 1884. The journal publishes peer-reviewed research articles, research reports, "Naturalist Notes", and book reviews. The journal was published monthly until 1976, since then it has been published bimonthly. In that period several special issues have been published. These covered particular natural history topics or significant centenaries: of the club (1980), the death of Ferdinand von Mueller (1996), and the establishment of Wilsons Promontory National Park and Mount Buffalo National Park (1998). In 2001 there was a special issue on Frederick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferdinand Von Mueller
Baron Sir Ferdinand Jacob Heinrich von Mueller, (german: Müller; 30 June 1825 – 10 October 1896) was a German-Australian physician, geographer, and most notably, a botanist. He was appointed government botanist for the then colony of Victoria (Australia) by Governor Charles La Trobe in 1853, and later director of the Royal Botanic Gardens, Melbourne. He also founded the National Herbarium of Victoria. He named many Australian plants. Early life Mueller was born at Rostock, in the Grand Duchy of Mecklenburg-Schwerin. After the early death of his parents, Frederick and Louisa, his grandparents gave him a good education in Tönning, Schleswig. Apprenticed to a chemist at the age of 15, he passed his pharmaceutical examinations and studied botany under Professor Ernst Ferdinand Nolte (1791–1875) at Kiel University. In 1847, he received his degree of Doctor of Philosophy from Kiel for a thesis on the plants of the southern regions of Schleswig. Mueller's sister Ber ... [...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 the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thorax (insect Anatomy)
The thorax is the midsection ( tagma) of the hexapod body ( insects and entognathans). It holds the head, legs, wings and abdomen. It is also called mesosoma or cephalothorax in other arthropods. It is formed by the prothorax, mesothorax and metathorax and comprises the scutellum; the cervix, a membrane that separates the head from the thorax; and the pleuron, a lateral sclerite of the thorax. In dragonflies and damselflies the mesothorax and metathorax are fused together to form the synthorax. In some insect pupae, like the mosquitoes', the head and thorax can be fused in a cephalothorax. Members of suborder Apocrita (wasps, ants and bees) in the order Hymenoptera have the first segment of the abdomen fused with the thorax, which is called the propodeum. The head is connected to the thorax by the occipital foramen, enabling a wide range of motion for the head. In most flying insects, the thorax allows for the use of asynchronous muscles Asynchronous muscles are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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