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''Xylomelum pyriforme'', commonly known as the woody pear, is a tree species in the family Proteaceae. It is endemic to Australia. First documented at Botany Bay by Joseph Banks and Daniel Solander in 1770, it was first described as ''Banksia pyriformis'' by German botanist Joseph Gaertner in 1788 in ''De Fructibus et Seminibus Plantarum''. It was given its current name in 1809 by the gardener Joseph Knight in his ''On the cultivation of the plants belonging to the natural order of Proteeae''.〔 The species name "pear-shaped" is derived from the Latin words ''pyrus'' "pear" and ''formis'' "shape". ''Xylomelum pyriforme'' grows as a large shrub or small tree, usually reaching high, although trees to have been recorded in the Howes Valley northwest of Sydney. The large juvenile leaves have dentate (toothed) margins with 6 to 11 teeth along each edge, while the adult leaves have entire margins. The prominently veined leaves measure and are up to wide. They are glabrous (smooth) and dark green.〔 New growth is covered in a fine rust-coloured fur. Flowering from September to November, the inflorescences measure and are rusty coloured.〔 Flowers are followed by the development of the large, woody, pear-shaped seed pod which is up to long and wide.〔 The plant's range is from the New South Wales mid-north coast south to Mittagong, with an outlying record from the vicinity of Cooma.〔 ''Xylomelum pyriforme'' grows on nutrient-poor well-drained sandstone soils in open eucalypt woodland. It is associated with such species as yellow bloodwood (''Corymbia eximia''), red bloodwood (''C. gummifera''), scribbly gum (''Eucalyptus haemastoma''), silvertop ash (''E. sieberi''), brown stringybark (''E. capitellata''), grey gum (''E. punctata'') and scribbly gum (''E. sclerophylla'').〔 ''Xylomelum pyriforme'' regenerates from a lignotuber or epicormic buds after bushfires, and can sucker from the roots.〔 It is one of a number of Australian species that require a fire to open and disperse their seeds. Early European settlers of Australia used the tree's wood to make gun stocks. Rarely seen in cultivation due to the scarcity of seed, ''Xylomelum pyriforme'' seedlings grow readily but commonly quickly succumb to damping off. A plant may take 20 years to reach flowering stage from seed. File:Woody Pear Long Track.jpg|new leaves File:X pyriforme flowers Henry Head orig.jpg|habit File:Xylomelum pyriforme.jpg|illustration by Edward Minchen ==References== 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「Xylomelum pyriforme」の詳細全文を読む スポンサード リンク
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