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Disc floret, SEM
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Disc floret, SEM
Disc floret. Coloured scanning electron micrograph (SEM) of a disc floret of a composite flower. Daisies (family Asteraceae, formerly Compositae) have inflorescences composed of two types of flowers. Disc florets such as this are found in the centre of the daisy. They are small, reproductive flowers with reduced petals (yellow) and stalks. They are surrounded by larger, usually sterile, ray florets (not seen) that act as guides to pollinating insects. Pollen is produced from stamens (blue) in the centre of the disc floret. Once pollinated, the ovules of the disc florets develop into the seeds of the plant
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Media ID 6288893
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
Asteraceae Compositae Composite Daisy Disc Floret Flowering Part Magnified Image Microscopic Photos Parts Re Production Reproductive Reproductive Parts Stamen Stamens Subjects Vertical
EDITORS COMMENTS
This print showcases the intricate beauty of a disc floret, a vital component of composite flowers like daisies. In this coloured scanning electron micrograph (SEM), we are granted a magnified view of the reproductive prowess hidden within these unassuming blooms. The disc florets, nestled in the heart of the daisy, possess reduced yellow petals and delicate stalks. Their purpose is to produce pollen from their vibrant blue stamens, which serve as the male organ responsible for fertilization. Surrounded by larger ray florets that remain unseen in this image, these tiny disc florets play an essential role in attracting pollinating insects with their alluring colors and shapes. Once successfully pollinated, the ovules within these remarkable structures develop into seeds that ensure future generations of plants. Through this SEM photograph, we gain insight into the microscopic world of flowering plants and appreciate their complex reproductive mechanisms. It serves as a reminder that even within seemingly ordinary natural subjects lie extraordinary wonders waiting to be discovered.
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