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''Carnarvonia'' is a flowering plant genus of a single species, commonly named red oak or red silky oak and constituting part of the plant family Proteaceae. The single species named ''Carnarvonia araliifolia'' grows to large trees of or more. They grow naturally only (endemic) in the Wet Tropics rainforests region of north-eastern Queensland, Australia.〔〔〔〔 The species has two described varieties, ''C. araliifolia'' var. ''araliifolia'' and ''C. araliifolia'' var. ''montana'', and the common names are used for both.〔〔〔〔 ''C. araliifolia'' var. ''araliifolia'' grows naturally in the lowlands and up to the lower parts of the uplands, from about altitude.〔〔 The trees are recorded as developing into the largest size on basalt derived fertile soils.〔 ''C. araliifolia'' var. ''montana'' grows naturally in the uplands, tablelands and mountains of the region, from about altitude, with its variety name referring to mountains.〔〔 ==Taxonomy and naming== In 1867, the colonial botanist Ferdinand von Mueller named the species in honour of Henry Herbert, 4th Earl of Carnarvon.〔〔〔〔 In 1995, the Australian tropical rainforest botanist Bernie Hyland updated the description and described the two different varieties.〔〔 Phylogenetics studies have indicated that ''C. araliifolia'' branched off from an early lineage of the plant family Proteaceae and it retains the ancient characteristics. Botanists have classified the species as a member of the subfamily Grevilleoideae because its cotyledons have auricles, which all other Grevilleoideae have and other Proteaceae outside the subfamily do not have.〔 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「Carnarvonia」の詳細全文を読む スポンサード リンク
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