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Seeds with hard seed coats contain Sclereids. Individual species may have several different types of sclereids in their coats. These are called Osteosclereids because they resemble Bones. | |
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Highly elongated Sclereids can be found in Olive leaves. These probably prevent severe wilting which would kill leaf cells. | |
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The leaves & petioles of Water-Lilies (Nymphaea sps.) have spectacular Sclereids. | |
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Transverse section of a Water-lily leaf. | |
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Cross-section through a living Nymphaea leaf. Note the two star-like Astrosclereids. These remind me of ballet dancers! | |
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An Astrosclereid in all its glory! These have sharp tips & may deter herbivory. | |
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