Flowers - a filament which supports the anther . The anther...

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Flowers Flowers are collections of reproductive and sterile tissue arranged in a tight whorled array having very short internodes . Sterile parts of flowers are the sepals and petals . When these are similar in size and shape, they are termed tepals. Reproductive parts of the flower are the stamen (male, collectively termed the androecium ) and carpel (often the carpel is referred to as the pistil , the female parts collectively termed the gynoecium ). Androecium The individual units of the androecium are the stamens, which consist of
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Unformatted text preview: a filament which supports the anther . The anther contains four microsporangia within which microspores (pollen) are produced by meiosis. Stamens are thought to represent modified sporophylls (leaves with sporangia on their upper surface). Examinations by James E. Canright in the 1950s suggested an evolutionary series from primitive angiosperms (like Austrobaileya ) which have leafish stamens to others with "normal" stamens ( Lilium )....
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Flowers - a filament which supports the anther . The anther...

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