|
''Crataegus'' × ''lavallei'', sometimes simply known as ''Crataegus lavallei'' or Lavallée's hawthorn, is a hybrid that arose between cultivated specimens of two species in the genus ''Crataegus'' (Hawthorn). The female parent was ''C. mexicana'' (sometimes mistakenly called ''C. pubescens''), and the male parent is thought to be ''C. calpodendron'' 〔Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). ''Hawthorns and medlars''. Royal Horticultural Society, Cambridge, U.K. 〕 (which is sometimes mistakenly called ''C. crus-galli'').〔 Carrière's hawthorn, ''C.'' × ''carrieri'' has the same parentage, and is therefore a synonym, i.e. the same species. There are minor differences between Lavallée's hawthorn and Carrière's hawthorn, and the latter is appropriately considered a separate form, which is formally written as ''Crataegus'' 'Carrieri'. ''C.'' × ''lavallei'' is an ornamental small tree with glossy dark green unlobed leaves that is used horticulturally. The cultivar 'Carrieri' has gained the Royal Horticultural Society's Award of Garden Merit.〔(【引用サイトリンク】url=http://apps.rhs.org.uk/plantselector/plant?plantid=575 )〕 ==References and external links== 〔 *(USDA Plants Profile ) 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「Crataegus × lavallei」の詳細全文を読む スポンサード リンク
|