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''Dipodium punctatum'' is a native orchid of Australia. It is commonly known as blotched hyacinth-orchid or hyacinth orchid, though both names can refer to other species. ''D. punctatum'' is a leafless mycoheterotrophic plant.〔 The species is terrestrial, favouring protected shady positions in dry forests or woodlands as it is drought and frost tender. The flowers are about 20-25 mm across〔 and are pink with dense purple-red spotting on segments. They appear in hyacinth-like racemes between November and March on a green to blackish scape that grows to a height of 40-100 cm. This orchid is common along the coast and Northern Tablelands of New South Wales, also Queensland, Victoria and South Australia. Similar species include ''D. variegatum'', ''D. pulchellum'', ''D. hamiltonianum'' and ''D. roseum''. ==Taxonomy== The species was formally described in 1804 by English botanist James Edward Smith in the journal ''Exotic Botany''. Smith gave it the name ''Dendrobium punctatum''. In 1810, Scottish botanist Robert Brown placed the species in his newly described genus ''Dipodium''. The World Checklist of Selected Plant Families (WCSP) records this species as a synonym of ''Dipodium squamatum''.〔(【引用サイトリンク】work=The Plant List version 1.1 )〕 In Australia, however, ''Dipodium punctatum'' is an accepted name in the Australian Plant Census.〔 In New Caledonia the name ''Dipodium punctatum var. squamatum'' is used to refer to a ''Dipodium'' species that occurs there.〔(【引用サイトリンク】work=endemia.nc. )〕 However ''Dipodium punctatum'' var. ''squamatum'' is recorded as an illegitimate name and a synonym of ''Dipodpium squamatum'' in the WCSP.〔(【引用サイトリンク】work=World Checklist of Selected Plant Families )〕 ''Dipodium punctatum'' does not occur in Tasmania. Plants in that state previously classified as ''D. punctatum'' are currently referred to ''D. roseum'', which was described in 1991.〔(【引用サイトリンク】title=A Census of The Vascular Plants of Tasmania - 2012 edition )〕 In South Australia, ''D. punctatum'' is listed as endangered. Populations currently included within ''D. roseum'' and ''D. campanulatum'' were originally part of a wider circumscription of ''D. punctatum'' in South Australia. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Dipodium punctatum」の詳細全文を読む スポンサード リンク
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