A cypsela is a dry, one-seeded fruit that develops from an inferior ovary. In many plants, particularly those in the Asteraceae family (like sunflowers and dandelions), the cypsela is equipped with a pappus(a structure consisting of fine, feathery hairs or bristles). This pappus acts like a parachute, increasing the fruit's surface area and buoyancy, allowing it to be easily carried and dispersed by the wind over long distances.
Schizocarp: This is a dry fruit that splits into single-seeded parts (mericarps) at maturity. While some schizocarps (like those of maples) are wind-dispersed, the term itself refers to the method of splitting rather than a specific adaptation for wind like the cypsela's pappus.
Caryopsis: This is a dry, indehiscent fruit where the fruit wall (pericarp) is fused with the seed coat (testa), common in grasses like maize and rice. These are typically dispersed by gravity or animals rather than specialized wind structures.
Capsule: This is a dry, dehiscent fruit that opens at maturity to release many seeds, often through pores or slits. While some seeds inside capsules may be wind-blown, the capsule itself is not the primary unit of wind dispersal.
There is an explanation video available below.
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