Structure of the flower
2007-09-24 22:27:11.0
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Essence about the colored structure, more unanimous view inclines to regard the flower as abnormal short one shortenned among one festival, every part of the flower has general nature of the leaf according to shape , structure. It was poet , dramatist and naturalist of Germany Goethe (Goethe 1749-1832 ) that proposed this view at first, he thinks the flower is abnormal one that is suited to breeding function . This view has got the support of the fossil record and much systematic development and ontogeny evidence, and can explain the structure of most angiosperm flowers well , therefore continue to use so far.
An intact flower includes six basic parts, namely the pedicel (pedicel), receptacle (receptacle ) , calyx (calyx ) , corolla (corolla ) , the stamen group (androecium ) and pistil group (gynoecium ). Among them the pedicel and receptacle are equivalent to the part of one, four other parts are equivalent to the abnormal leaf on one, Chang He is called the flower department (flower parts ). An four available flowers are called the complete flower (complete flower ), the ones that lacks among them let a part call the imperfect flower (incomplete flower ).
Every part (such as calyx , corolla , stamen group and pistil group ,etc. ) and inflorescence of the flower are in the course of long-term evolution, have produced the adaptability variation of all kinds, therefore has formed various types.
Shape in different poses and with different expressions form that structure spend, among about 250,000 kinds of angiosperm, there is 250,000 kinds of colored styles. But it is diagrammatic that all flowers still have common structure, their composition is usually:
An intact flower includes six basic parts, namely the pedicel (pedicel), receptacle (receptacle ) , calyx (calyx ) , corolla (corolla ) , the stamen group (androecium ) and pistil group (gynoecium ). Among them the pedicel and receptacle are equivalent to the part of one, four other parts are equivalent to the abnormal leaf on one, Chang He is called the flower department (flower parts ). An four available flowers are called the complete flower (complete flower ), the ones that lacks among them let a part call the imperfect flower (incomplete flower ).
Every part (such as calyx , corolla , stamen group and pistil group ,etc. ) and inflorescence of the flower are in the course of long-term evolution, have produced the adaptability variation of all kinds, therefore has formed various types.
Shape in different poses and with different expressions form that structure spend, among about 250,000 kinds of angiosperm, there is 250,000 kinds of colored styles. But it is diagrammatic that all flowers still have common structure, their composition is usually:
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