Eucalypt
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Eucalypt
Eucalypt is a descriptive name for woody plants with capsule fruiting bodies belonging to seven closely related genera (of the tribe Eucalypteae) found across Australasia: ''Eucalyptus'', '' Corymbia'', '' Angophora'', ''Stockwellia'', ''Allosyncarpia'', ''Eucalyptopsis'' and ''Arillastrum''. Taxonomy For an example of changing historical perspectives, in 1991, largely genetic evidence indicated that some prominent ''Eucalyptus'' species were actually more closely related to ''Angophora'' than to other eucalypts; they were accordingly split off into the new genus ''Corymbia''. Although separate, all of these genera and their species are allied and it remains the standard to refer to the members of all seven genera ''Angophora'', ''Corymbia'', ''Eucalyptus'', ''Stockwellia'', ''Allosyncarpia'', ''Eucalyptopsis'' and ''Arillastrum'' as "eucalypts" or as the eucalypt group. The extant genera ''Stockwellia'', ''Allosyncarpia'', ''Eucalyptopsis'' and ''Arillastrum'' comprise six k ...
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Eucalyptus
''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corymbia'', they are commonly known as eucalypts. Plants in the genus ''Eucalyptus'' have bark that is either smooth, fibrous, hard or stringy, leaves with oil glands, and sepals and petals that are fused to form a "cap" or operculum over the stamens. The fruit is a woody capsule commonly referred to as a "gumnut". Most species of ''Eucalyptus'' are native to Australia, and every state and territory has representative species. About three-quarters of Australian forests are eucalypt forests. Wildfire is a feature of the Australian landscape and many eucalypt species are adapted to fire, and resprout after fire or have seeds which survive fire. A few species are native to islands north of Australia and a smaller number are only found outside the continent. Eucalypts have been grow ...
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Eucalyptus Deglupta
''Eucalyptus deglupta'' is a species of tall tree, commonly known as the rainbow eucalyptus, Mindanao gum, or rainbow gum that is native to the Philippines, Indonesia, and Papua New Guinea. It is the only ''Eucalyptus'' species that usually lives in rainforest, with a natural range that extends into the northern hemisphere. It is characterized by multi-colored bark. Description ''Eucalyptus deglupta'' is a fast-growing tree that typically reaches a height of with the trunk up to in diameter and with buttresses up to high. It has smooth, orange-tinted bark that sheds in strips, revealing streaks of pale green, red, orange, grey, and purplish brown. The branchlets are roughly square in cross section, often with narrow wings on the corners. The leaves are arranged in opposite pairs, mostly long and wide on a short petiole. The flower buds are arranged in a branching inflorescence in leaf axils, or on the end of branchlets, each branch with groups of seven buds, the individ ...
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Eucalyptus Urophylla
''Eucalyptus urophylla'', commonly known as Timor white gum, Timor mountain gum, popo or ampupu, is a species of eucalypt native to islands of the Indonesian Archipelago and Timor. It is also common in other countries with humid and subhumid tropical climates where it is grown as plantation timber. It is the floral emblem of East Timor. Description This ''Eucalypt'' is an evergreen tree that typically grows to a height of but can also be gnarled shrub when growing conditions are unfavourable. The tree has a straight bole with no branches present on the trunk for up to . The trunk can have a diameter of up to . The appearance of the bark is variable depending on conditions but is typically persistent and subfibrous, smooth to shallow with close longitudinal fissures and red-brown to brown in colour. It will sometimes have a rougher texture mostly at the base of the trunk. The discolourous evergreen adult leaves have a subopposite to alternate, arrangement and are a broadly la ...
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Corymbia
''Corymbia'', commonly known as bloodwoods, is a genus of about one hundred species of tree that, along with ''Eucalyptus'', '' Angophora'' and several smaller groups, are referred to as eucalypts. Until 1990, corymbias were included in the genus ''Eucalyptus'' and there is still considerable disagreement among botanists as to whether separating them is valid. As of January 2020, ''Corymbia'' is an accepted name at the Australian Plant Census. Description Eucalypts in the genus ''Corymbia'' are trees, sometimes mallee-like, that either have rough, fibrous or flaky bark, or smooth bark that is shed in small flakes or short strips. Young plants and coppice regrowth have leaves that differ from adult leaves. The adult leaves are arranged alternately (strictly disjunct opposite, but appearing alternate), with oil glands. The flower buds are arranged in groups on a branching peduncle, each branch usually with seven buds, but with the pedicels of differing lengths, so that the inflo ...
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Eucalypteae
Eucalypteae is a large tribe of flowering plants in the family Myrtaceae; members of this tribe are known as eucalypts. In Australia the genera '' Angophora'', ''Corymbia'', and ''Eucalyptus'' are commonly known as gum trees, for the sticky substance that exudes from the trunk of some species. , the tribe comprised around 860 species, all native to Southeast Asia and Oceania, with a main diversity center in Australia. Genera There are seven genera in the tribe Eucalypteae: *''Allosyncarpia'' – Australia *'' Angophora'' – Australia *''Arillastrum'' – New Caledonia *''Corymbia'' – Oceania *''Eucalyptopsis'' – Indonesia, New Guinea *''Eucalyptus'' – Southeast Asia, Oceania *''Stockwellia ''Stockwellia'' is a monotypic genus in the flowering plant family Myrtaceae. The sole species in the genus, ''Stockwellia quadrifida'' (commonly known as Vic Stockwell's puzzle), is endemic to Queensland. Description ''Stockwellia quadrifida ...'' – Australia Reference ...
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Angophora
''Angophora'' is a genus of nine species of trees and shrubs in the myrtle family, Myrtaceae. Endemic to eastern Australia, they differ from other eucalypts in having juvenile and adult leaves arranged in opposite pairs, sepals reduced to projections on the edge of the floral cup, four or five overlapping, more or less round petals, and a papery or thin, woody, often strongly ribbed capsule. Species are found between the Atherton Tableland in Queensland and south through New South Wales to eastern Victoria, Australia. Description Plants in the genus ''Angophora'' are trees, occasionally shrubs, with rough bark except for '' A. costata''. The juvenile leaves differ from adult leaves in being hairy with raised oil glands. Both juvenile and adult leaves are arranged in opposite pairs, the adult leaves usually glabrous and paler on the lower surface. The flower buds are arranged in groups of three or seven. The flower has four or five small sepals, reduced to small projections on th ...
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Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ...
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Eucalyptopsis
''Eucalyptopsis'' is a genus of describing two species of trees, constituting part of the plant family Myrtaceae and included in the eucalypts group. They have botanical records of growing naturally in New Guinea and the Moluccas, within the Malesia region. Plant geneticists have found their closest evolutionary relatives in the monotypic genera and species ''Stockwellia quadrifida'' and ''Allosyncarpia ternata''. Species * ''Eucalyptopsis alauda'' – New Guinea incl. Woodlark Island ::Synonym: ''Eucalyptopsis'' sp. aff. ''papuana'' (1951) * ''Eucalyptopsis papuana ''Eucalyptopsis papuana'' is a species of plant in the family Myrtaceae. It is found in Maluku and New Guinea. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a ...'' – New Guinea, Moluccas References Myrtaceae genera Myrtaceae Taxonomy articles created by Polbot Australasian realm flora {{Myrtaceae-stub ...
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Epicormic Shoot
An epicormic shoot is a shoot growing from an epicormic bud, which lies underneath the bark of a trunk, stem, or branch of a plant. Epicormic buds lie dormant beneath the bark, their growth suppressed by hormones from active shoots higher up the plant. Under certain conditions, they grow into active shoots, such as when damage occurs to higher parts of the plant, or light levels are increased following removal of nearby plants. Epicormic buds and shoots occur in many woody species, but are absent from many others, such as most conifers. Function Human horticultural practices that exploit epicormic growth rely on plants that have epicormic budding capabilities for regenerative function in response to crown damage, such as through wind or fire. Epicormic shoots are the means by which trees regrow after coppicing or pollarding, where the tree's trunk or branches are cut back on a regular cycle. These forestry techniques cannot be used on species which do not possess strong ...
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Stockwellia
''Stockwellia'' is a monotypic genus in the flowering plant family Myrtaceae. The sole species in the genus, ''Stockwellia quadrifida'' (commonly known as Vic Stockwell's puzzle), is endemic to Queensland. Description ''Stockwellia quadrifida'' is a very large rainforest emergent, growing up to tall and DBH. It has straight boles with reddish-brown flaky bark and buttress roots up to high. The leaves are opposite to sub-opposite, glabrous, elliptic and leathery, measuring up to long by wide and turning red before falling. Inflorescences are axillary, produced in groups of three sessile flowers on a peduncle measuring in length. The fruits are a fused woody capsule containing oval-shaped seeds measuring up to . Discovery This species first became known to botanical science in 1971, when Atherton resident Keith Gould began experimenting with aerial photography as a means of forestry interpretation. Some of his photos appeared to show a large group of emergent tree ...
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Sulawesi
Sulawesi (), also known as Celebes (), is an island in Indonesia. One of the four Greater Sunda Islands, and the world's eleventh-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Mindanao and the Sulu Archipelago. Within Indonesia, only Sumatra, Borneo, and New Guinea, Papua are larger in territory, and only Java and Sumatra have larger populations. The landmass of Sulawesi includes four peninsulas: the northern Minahassa Peninsula, Minahasa Peninsula, the East Peninsula, Sulawesi, East Peninsula, the South Peninsula, Sulawesi, South Peninsula, and the Southeast Peninsula, Sulawesi, Southeast Peninsula. Three gulfs separate these peninsulas: the Gulf of Tomini between the northern Minahasa and East peninsulas, the Tolo Gulf between the East and Southeast peninsulas, and the Bone Gulf between the South and Southeast peninsulas. The Strait of Makassar runs along the western side of the island and separates the island from Borneo. Etymology ...
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Bark (botany)
Bark is the outermost layers of stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs. Bark refers to all the tissues outside the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner bark, which in older stems is living tissue, includes the innermost layer of the periderm. The outer bark on older stems includes the dead tissue on the surface of the stems, along with parts of the outermost periderm and all the tissues on the outer side of the periderm. The outer bark on trees which lies external to the living periderm is also called the rhytidome. Products derived from bark include bark shingle siding and wall coverings, spices and other flavorings, tanbark for tannin, resin, latex, medicines, poisons, various hallucinogenic chemicals and cork. Bark has been used to make cloth, canoes, and ropes and used as a surface for paintings and map making. A number of plants a ...
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