| 翻訳と辞書 |
Syconium
A syconium is the type of inflorescence borne by figs (genus ''Ficus''), formed by an enlarged, fleshy, hollow receptacle with multiple ovaries on the inside surface.〔(Ficus: The Remarkable Genus Of Figs )〕 In essence, it is really a fleshy stem with a number of flowers, so it is considered both a multiple and accessory fruit. The name comes from the Ancient Greek word ''sykon'', meaning "fig".〔Merriam-Webster Collegiate Dictionary entry for (''syconium'' )〕
==Morphology==
The syconium is an urn-shaped receptacle which contains between 50 to 7000 (depending on the species) highly simplified uniovulate flowers or florets on its inner surface. It is closed off from most organisms by the ostiole, formed by bracts.
Syconia can be monoecious or functionally dioecious: the former contain female flowers with variable style length and few male flowers, and produce seeds and pollen. The latter have male and female forms in different plants: seed figs contain female flowers with long styles and produce seeds; gall figs contain female flowers with short styles and male flowers and produce pollen.
Once pollinated, the florets develop into achenes or drupes, in which the seeds are enclosed by a layer of endocarp. From this perspective, the fig is an enclosure with tens to thousands of fruits within it.〔Galil, J. (1977). "Fig biology". ''Endeavour'' 1(2): 52–56.〕
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「Syconium」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.
|
|