| 翻訳と辞書 |
| Ulmus laciniata var. nikkoensis ： ウィキペディア英語版 |
Ulmus laciniata var. nikkoensis
''Ulmus laciniata'' var. ''nikkoensis'' Rehder, the Nikko elm, was discovered as a seedling near Lake Chuzenji, near Nikkō, Japan, and obtained by the Arnold Arboretum in 1905.〔Heybroek, H. M. (1981). The Japanese elm species and their value for the Dutch elm breeding program. ''Proceedings of the Dutch Elm Disease symposium and workshop''. October 5–9, 1981, Winnipeg, Manitoba. pp 78-90〕 The taxonomy of the tree remains a matter of contention, and has been considered possibly a hybrid of ''U. laciniata'' and ''U. davidiana'' var. ''japonica''. However, in crossability experiments at the Arnold Arboretum in the 1970s, ''U. laciniata'', a protogynous species, was found to be incompatible with ''U. davidiana'' var. ''japonica'', which is protandrous.
Significantly, the variety was not recognized by Ohwi, though his reasons are not clear.
==Description==
'Nikkoensis' is a small tree; the specimen at the Morton Arboretum likened to a cherry tree. The tree is chiefly distinguished by leaves which are red on emergence, and toothed but not lobed as in the species. The perfect apetalous wind-pollinated flowers appear in March in England.
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「Ulmus laciniata var. nikkoensis」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|