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Bunya Pine : ウィキペディア英語版
Araucaria bidwillii

''Araucaria bidwillii'', the bunya pine, is a large evergreen coniferous tree in the plant family Araucariaceae. It is found naturally in south-east Queensland Australia and two small disjunct populations in north eastern Queensland's World Heritage listed Wet Tropics. There are many fine old planted specimens in New South Wales, and around the Perth, Western Australia metropolitan area. They can grow up to 30–45 m.
The bunya pine is the last surviving species of the Section ''Bunya'' of the genus ''Araucaria''. This section was diverse and widespread during the Mesozoic with some species having cone morphology similar to ''A. bidwillii'', which appeared during the Jurassic. Fossils of Section ''Bunya'' are found in South America and Europe. The scientific name honours the botanist John Carne Bidwill, who sent the first specimens to Sir William Hooker in 1843.
==Distribution==
Native in Queensland, historically trees were found in populations recorded as abundant and widespread in suitable habitats of South East Queensland and Wide Bay-Burnett (regions). In these regions of Queensland the natural ecosystems growing Bunya Pines have sustained European agricultural occupation and have been fragmented now into the areas of the Blackall Range, Bunya Mountains, upper Brisbane River reaches and upper Mary River valley. Natural ecosystems having Bunya pines are found again approximately to the north, in the wet tropics region of north eastern Queensland. There the species natural populations are rare and restricted. Two outlying restricted populations are known in the Cannabullen Falls and Mt. Lewis areas.〔(【引用サイトリンク】url=http://www.catalogueoflife.org/annual-checklist/2009/show_species_details.php?record_id=5647836 )
''A. bidwillii'' has a limited distribution within Australia in part because of the drying out of Australia with loss of rainforest and poor seed dispersal. The remnant sites at the Bunya Mountains and Mount Lewis in Queensland have genetic diversity. The cones are large, soft-shelled and nutritious and fall intact to the ground beneath the tree before dehiscing. The suggestion that extinct large animals – perhaps dinosaurs and later, large mammals – may have been dispersers for the Bunya is reasonable, given the seeds' size and energy content, but difficult to confirm given the incompleteness of the fossil record for coprolites.
At the start of European occupation, ''A. bidwillii'' occurred in great abundance in southern Queensland, to the extent that a Bunya Bunya Reserve was declared in 1840 to protect its habitat. The tree once grew as large groves or sprinkled regularly as an emergent species throughout other forest types on the Upper Stanley and Brisbane Rivers, Sunshine Coast hinterland (especially the Blackall Range near Montville and Maleny), and also towards and on the Bunya Mountains. Today, the species is usually encountered as very small groves or single trees in its former range, except on and near the Bunya Mountains, where it is still fairly prolific.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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