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Morphology of Flowering Plants
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#1
Aestivation
Types: Valvate, Twisted, Imbricate, Vexillary
Aestivation refers to the arrangement of sepals or petals in a floral bud with respect to other members of the same whorl.
Terms:
Valvate
Sepals or petals just touch each other at the margin without overlapping.
Twisted
One margin of the appendage overlaps that of the next one.
Imbricate
Margins of sepals or petals overlap one another but not in any particular direction.
Vexillary
The largest petal overlaps the two lateral petals, which in turn overlap the two smallest anterior petals.
Aestivation is the mode of arrangement of sepals or petals in a floral bud.
Common Use:
Understanding flower morphology and classification.
Botany
Flower Morphology
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