Pōhutukawa
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Pōhutukawa
Pōhutukawa (''Metrosideros excelsa''), also known as the New Zealand Christmas tree, or iron tree, is a coastal evergreen tree in the Myrtus, myrtle family, Myrtaceae, that produces a brilliant display of red (or occasionally orange, yellow or white) flowers, each consisting of a mass of stamens. The pōhutukawa is one of twelve ''Metrosideros'' species Endemism, endemic to New Zealand. Renowned for its vibrant colour and its ability to survive even perched on rocky, precarious cliffs, it has found an important place in New Zealand culture for its strength and beauty, and is regarded as a chiefly tree (') by Māori people, Māori. Etymology The generic name ''Metrosideros'' derives from the Ancient Greek language, Ancient Greek ' or 'heartwood' and ' or 'iron'. The specific name (botany), species name ''excelsa'' is from Latin language, Latin ', 'highest, sublime'. ' is a Māori language, Māori word. Its closest equivalent in other Polynesian languages is the Cook Island Māo ...
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Metrosideros
''Metrosideros'' is a genus of approximately 60 trees, shrubs, and vines in the family Myrtaceae, mostly found in the Pacific region. Most of the tree forms are small, but some are exceptionally large, the New Zealand species in particular. The name derives from the Ancient Greek language, Ancient Greek ''metra'' or "heartwood" and ''sideron'' or "iron". Perhaps the best-known species are the pōhutukawa (''M. excelsa''), Metrosideros robusta, northern rātā (''M. robusta'') and Metrosideros umbellata, southern rātā (''M. umbellata'') of New Zealand, and ''Metrosideros polymorpha, ōhia lehua'' (''M. polymorpha'') from the Hawaiian Islands. Distribution ''Metrosideros'' is one of the most widely spread flowering plant genera in the Pacific. New Caledonia has 21 species, New Zealand has 12, New Guinea has seven and Hawaii has 5. The genus is present on most other high Pacific Islands, including Solomon Islands, Vanuatu, Fiji, Samoa, Cook Islands, French Polynesia, Bonin Island ...
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Aerial Root
Aerial roots are Root, roots growing above the ground. They are often Plant development#Adventitious structures, adventitious, i.e. formed from nonroot tissue. They are found in diverse plant species, including epiphytes such as orchids (''Orchidaceae''), tropical coastal swamp trees such as mangroves, banyan figs (''Ficus subg. Urostigma''), the warm-temperate rainforest rata (''Metrosideros robusta''), and pōhutukawa trees of New Zealand (''Metrosideros excelsa''). Vines such as common ivy (''Hedera helix'') and poison ivy (''Toxicodendron radicans'') also have aerial roots. Types This plant organ that is found in so many diverse plant-families has different specializations that suit the plant-habitat. In general growth-form, they can be technically classed as ''gravitropism, negatively gravitropic'' (grows up and away from the ground) or ''positively gravitropic'' (grows down toward the ground). "Stranglers" (prop-root) Banyan trees are an example of a strangler fig th ...
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Myrtaceae
Myrtaceae (), the myrtle family, is a family of dicotyledonous plants placed within the order Myrtales. Myrtle, pōhutukawa, bay rum tree, clove, guava, acca (feijoa), allspice, and eucalyptus are some notable members of this group. All species are woody, contain essential oils, and have flower parts in multiples of four or five. The leaves are evergreen, alternate to mostly opposite, simple, and usually entire (i.e., without a toothed margin). The flowers have a base number of five petals, though in several genera, the petals are minute or absent. The stamens are usually very conspicuous, brightly coloured, and numerous. Evolutionary history Scientists hypothesize that the family Myrtaceae arose between 60 and 56 million years ago (Mya) during the Paleocene era. Pollen fossils have been sourced to the ancient supercontinent Gondwana. The breakup of Gondwana during the Cretaceous period (145 to 66 Mya) geographically isolated disjunct taxa and allowed for rapid ...
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Mōtītī Island
Mōtītī Island is an island in the Bay of Plenty, off the coast of New Zealand's North Island. It is north-east of Papamoa Beach on the mainland and north-east of Tauranga. There were 18 homes occupied by 27 people on the island in the 2006 census.QuickStats About Motiti Island
2006 Census, Statistics New Zealand. Retrieved 29 October 2010.


Geography

A relatively flat island covering some , Mōtītī Island is composed mainly of Miocene andesitic basalt volcanic rocks, overlaid with more recent sediments in the south. The principal activity on the island is agriculture, with a developing plan ...
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