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Eucalyptus Vernicosa
''Eucalyptus vernicosa'', commonly known as varnished gum, is a species of shrub or a mallee that is endemic to mountainous areas of Tasmania. It has smooth greyish bark, crowded, egg-shaped to elliptical or round leaves, flower buds singly or in groups of three in leaf axils, white flowers and hemispherical or bell-shaped fruit. Description ''Eucalyptus vernicosa'' is a shrub that typically grows to a height of or a mallee to and forms a lignotuber. It has smooth grey or greyish brown bark. Young plants and coppice regrowth have crowded, sessile, glossy green, egg-shaped leaves that are long and wide and arranged in opposite pairs. Adult leaves are crowded, glossy green, egg-shaped to elliptical or round, long and wide with a rounded base, on a petiole long, arranged in opposite pairs or alternately. The flower buds are arranged in groups of three in leaf axils on an unbranched peduncle up to long, the individual buds sessile or almost so. Sometimes two of the buds in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Dalton Hooker
Sir Joseph Dalton Hooker (30 June 1817 – 10 December 1911) was a British botanist and explorer in the 19th century. He was a founder of geographical botany and Charles Darwin's closest friend. For twenty years he served as director of the Royal Botanical Gardens, Kew, succeeding his father, William Jackson Hooker, and was awarded the highest honours of British science. Biography Early years Hooker was born in Halesworth, Suffolk, England. He was the second son of the famous botanist Sir William Jackson Hooker, Regius Professor of Botany, and Maria Sarah Turner, eldest daughter of the banker Dawson Turner and sister-in-law of Francis Palgrave. From age seven, Hooker attended his father's lectures at Glasgow University, taking an early interest in plant distribution and the voyages of explorers like Captain James Cook. He was educated at the Glasgow High School and went on to study medicine at Glasgow University, graduating M.D. in 1839. This degree qualified him for ... [...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] |
Eucalyptus Subcrenulata
''Eucalyptus subcrenulata'', commonly known as Tasmanian alpine yellow gum, is a species of small to medium-sized tree that is endemic to the highlands of Tasmania. It has smooth bark, glossy green, lance-shaped to egg-shaped adult leaves, flower buds in groups of three, white flowers and hemispherical to bell-shaped fruit. It is similar to '' E. johnstonii'', '' E. vernicosa'' and '' E. urnigera''. Description ''Eucalyptus subcrenulata'' is a tree that typically grows to a height of , sometimes a tall, straight tree to , and forms a lignotuber. It has smooth, pale grey to brown or yellowish bark, often with horizontal black scars. Young plants and coppice regrowth have stems that are square in cross-section, sometimes with a wing on each corner and sessile leaves, arranged in opposite pairs. These leaves are egg-shaped to round, glossy green, long and wide with small teeth on the edge. Adult leaves are arranged alternately, lance-shaped to egg-shaped, the same shade of glossy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucalyptus Johnstonii
''Eucalyptus johnstonii'', commonly known as Tasmanian yellow gum, is a species of medium-sized to tall tree endemic to Tasmania. It has smooth yellow to greenish bark, lance-shaped adult leaves, flower buds in groups of three, white flowers and hemispherical or bell-shaped fruit. Description ''Eucalyptus johnstonii'' is a tree that typically grows to a height of and forms a lignotuber. It has smooth yellow to brownish or greenish bark, sometimes with persistent fibrous bark near the base. Young plants and coppice regrowth have stems that are more or less square in cross-section with a broad wing on each corner and sessile. The juvenile leaves are egg-shaped to almost round, long, wide and arranged in opposite pairs. Adult leaves are lance-shaped or curved, more or less the same glossy green on both sides, long and wide on a petiole long. The flower buds are arranged in leaf axils on a thick, unbranched peduncle long, the individual buds sessile. Mature buds are oblong to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orites
''Orites'' is a genus of 9 known species, 7 endemic to Australia (4 of which occur in Tasmania) and 2 in South America; 1 in the Chilean Andes and 1 in Bolivia. Species This listing was sourced from the ''Australian Plant Name Index'' and other scholarly sources: * '' Orites acicularis'' , Yellow bush – Tasmania, Australia * '' Orites diversifolia'' , Variable orites – Tasmania, Australia * ''Orites excelsus'' , Mountain silky oak, prickly ash, white beefwood, southern silky oak, siky oak – NSW and Qld, Australia * '' Orites fiebrigii'' – Bolivia * '' Orites lancifolius'' , Alpine orites – NSW, ACT and Victoria, Australia * '' Orites megacarpus'' - endemic to mountains of NE. Qld, Australia * '' Orites milliganii'' , Toothed orites – Tasmania, Australia * '' Orites myrtoidea'' – Chile * '' Orites revolutus'' – Tasmania, Australia ;Formerly included here, and awaiting the ''Australian Plant Census'' update of the new name to the accepted species names: * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athrotaxis
''Athrotaxis'' is a genus of two to three species (depending on taxonomic opinion) of conifers in the cypress family, Cupressaceae. The genus is endemic to western Tasmania, where they grow in high altitude temperate rainforests.Farjon, A. (2005). ''Monograph of Cupressaceae and Sciadopitys''. Royal Botanic Gardens, Kew. Australian Plant Names Index''Athrotaxis''/ref> They are medium-sized evergreen trees, reaching 10–30 m (rarely 40 m) tall and 1-1.5 m trunk diameter. The leaves are scale-like, 3–14 mm long, are borne spirally on the shoots. The cones are globose to oval, 1–3 cm diameter, with 15-35 scales, each scale with 3-6 seeds; they are mature in 7–9 months after pollination, when they open to release the seeds. The male (pollen) cones are small, and shed their pollen in early spring. They are very susceptible to bush fires, and have declined markedly in abundance due to accidental and deliberate fires since the European colonisation of Tasmania. Taxo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richea
''Richea'' is a genus of 11 species of flowering plants in the family Ericaceae. Nine of the species are endemic to Tasmania and the other two are endemic to the south-east of the Australian mainland. Species include: *'' Richea acerosa'' (Lindl.) F.Muell. *'' Richea alpina'' Menadue *'' Richea continentis'' B.L.Burtt – Candle heath *'' Richea dracophylla'' R.Br. – Dragonleaf richea *'' Richea gunnii'' Hook.f. – Gunn's candle heath *'' Richea milliganii'' (Hook.f.) F.Muell. – Milligan's candle heath or nodding candle heath *'' Richea pandanifolia'' Hook.f. – Pandani or giant grass tree *'' Richea procera'' (F.Muell.) F.Muell. – Lowland richea *''Richea scoparia ''Richea scoparia (formerly known as R. angustifolia)'', is a wide spread Tasmanian endemic plant. The genus '' Richea,'' forms part of the Ericaceae (formerly Epacridaceae) family, which are commonly heath-like shrubs. The name refers to the e ...'' Hook.f. – Scoparia *'' R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tree Line
The tree line is the edge of the habitat at which trees are capable of growing. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environmental conditions (usually cold temperatures, extreme snowpack, or associated lack of available moisture). The tree line is sometimes distinguished from a lower timberline, which is the line below which trees form a forest with a closed Canopy (biology), canopy. At the tree line, tree growth is often sparse, stunted, and deformed by wind and cold. This is sometimes known as ''krummholz'' (German for "crooked wood"). The tree line often appears well-defined, but it can be a more gradual transition. Trees grow shorter and often at lower densities as they approach the tree line, above which they are unable to grow at all. Given a certain latitude, the tree line is approximately 300 to 1000 meters below the permanent snow line and roughly parallel to it. Causes Due to their vertical structure, tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented sand, sandstone may be any color due to impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Since sandstone beds often form highly visible cliffs and other topographic features, certain colors of sandstone have been strongly identified with certain regions. Rock formations that are primarily composed of sandstone usually allow the percolation of water and other fluids and are porous enough to store large quantities, making them valuable aquifers and petroleum reservoirs. Quartz-bearing sandstone can be changed into quartzite through metamorphism, usually related to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resistant hilltops. The nearly pure silica conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cradle Mountain
Cradle Mountain is a locality and mountain in the Central Highlands region of the Australian state of Tasmania. The mountain is situated in the Cradle Mountain-Lake St Clair National Park. At above sea level, it is the sixth-highest mountain in Tasmania. The locality of Cradle Mountain is a rural locality in the local government areas of Meander Valley, Kentish and West Coast in the Launceston and North-west and west local government regions of Tasmania. The locality is about west of the town of Westbury. The 2016 census has a population of 66 for the state suburb of Cradle Mountain. Cradle Mountain was gazetted as a locality in 1966. Cradle Mountain (the mountain) occupies a small area in the north-west of the locality, which occupies the northern half of Cradle Mountain-Lake St Clair National Park. Route C132 (Cradle Mountain Road / Dove Lake Road) enters from the north and runs south to Dove Lake, where it ends. History Cradle Mountain sits between the Big River ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Tundra
Alpine tundra is a type of natural region or biome that does not contain trees because it is at high elevation, with an associated alpine climate, harsh climate. As the latitude of a location approaches the poles, the threshold elevation for alpine tundra gets lower until it reaches sea level, and alpine tundra merges with tundra#Arctic tundra, polar tundra. The high elevation causes an adverse climate, which is too cold and windy to support tree growth. Alpine tundra ecotone, transitions to sub-alpine forests below the tree line; stunted forests occurring at the forest-tundra ecotone are known as ''Krummholz''. With increasing elevation it ends at the snow line where snow and ice persist through summer. Alpine tundra occurs in mountains worldwide. The flora of the alpine tundra is characterized by dwarf shrubs close to the ground. The cold climate of the alpine tundra is caused by adiabatic cooling of air, and is similar to polar climate. Geography Alpine tundra occurs at hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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