In the center of a lily flower, there are small, slightly rectangular seeds that seem to float in the center..

Float in the center on very delicate stems...Are these the seeds of the flower? What are they and what is their purpose?

In the center of a lily flower, there are small, slightly rectangular seeds that seem to float in the center..
That is the Anther. This is the part of the stamen that produces and contains pollen. It is usually on top of a long stalk that looks like a fine hair.





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Reply:The stamen (from Latin stamen meaning "thread of the warp") is the male organ of a flower. Each stamen generally has a stalk called the filament (from Latin filum, meaning "thread"), and, on top of the filament, an anther (from Ancient Greek anthera, feminine of antheros "flowery," from anthos "flower,").





The anther is usually composed of four pollen sacs, called microsporangia. The development of the microsporangia and the contained haploid spores, (called pollen-grains) is closely comparable with that of the microsporangia in gymnosperms or heterosporous ferns. The pollen is set free by the opening (dehiscence) of the anther, generally by means of longitudinal slits, but sometimes by pores, as in the heath family (Ericaceae), or by valves, as in the barberry family (Berberidaceae). It is then dropped, or carried by some external agent — wind, water or some member of the animal kingdom — onto the receptive surface of the carpel of the same or another flower, which is thus pollinated.





Typical flowers have six stamens inside a perianth (the petals and sepals together), arranged in a whorl around the carpel (pistil). But in some species there are many more than six present in a flower (see, for example, the spider tree flower, below). Collectively, the stamens are called an androecium (from Greek andros oikia: man's house). They are positioned just below the gynoecium. The anthers are bilocular, i.e. they have two locules. Each locule contains a microsporangium. The tissue between the locules and the cells is called the connective.





In an immature, unopened flower bud, the filaments are still short. Their function is then to transport nutrients to the developing pollen. They start to lengthen once the bud opens. The anther can be attached to the filament in two ways:





* basifixed : attached at its base to the filament; this gives rise to a longitudinal dehiscence (opening along its length to release pollen)


* versatile : attached at its center to the filament; pollen is then released through pores (poricidal dehiscence).





Scanning electron microscope image of Penta lanceolata anthers, with pollen grains on surface


Scanning electron microscope image of Penta lanceolata anthers, with pollen grains on surface





Stamens can be connate (fused or joined in the same whorl):





* monadelphous : fused into a single, compound structure


* diadelphous : joined partially into two androecial structures


* synantherous : only the anthers are connate (such as in the Asteraceae)





Stamens can also be adnate (fused or joined from more than one whorl):





* epipetalous : adnate to the corolla


* didynamous : occurring in two pairs of different length


* tetradynamos : occurring as a set of six filaments with two shorter ones


* exserted : extending beyond the corolla


* included : not extending from the cor



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