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stamen : ウィキペディア英語版
stamen

The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower.
==Morphology and terminology==
A stamen typically consists of a stalk called the filament and an anther which contains ''microsporangia''. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle portion. The sterile tissue between the lobes is called the connective. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte.
The stamens in a flower are collectively called the ''androecium''. The androecium in various species of plants form a great variety of patterns, some of them highly complex.〔Sattler, R. 1973. ''Organogenesis of Flowers. A Photographic Text-Atlas''. University of Toronto Press. ISBN 0-8020-1864-5.〕〔Sattler, R. 1988. A dynamic multidimensional approach to floral morphology. In: Leins, P., Tucker, S. C. and Endress, P. (eds) ''Aspects of Floral Development''. J. Cramer, Berlin, pp. 1-6. ISBN 3-443-50011-0〕〔Greyson, R. I. 1994. ''The Development of Flowers''. Oxford University Press. ISBN 0-19-506688-X.〕〔Leins, P. and Erbar, C. 2010. ''Flower and Fruit''. Schweizerbart Science Publishers, Stuttgart. ISBN 978-3-510-65261-7.〕 It surrounds the gynoecium and is surrounded by the perianth. A few members of the family Triuridaceae, particularly ''Lacandonia schismatica'', are exceptional in that their gynoecia surround their androecia.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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