Course Content
GROWTH AND DEVELOPMENT IN PLANTS AND ANIMALS
Biology Form 3
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Dry fruits

Are fruits with a dry pericarp.

(a) Dehiscent fruits

Dry fruits that split open/dehisce to release the seeds.

(i) Legume (pod) e.g. beans

Dry fruit that splits open longitudinally along two sides.

(ii) Capsule

The pericarp dehisces longitudinally at more than two places (e.g. cotton) or by a ring of pores at the top (e.g. poppy).

(iii) Schizocarp g. castor

The ripe fruit breaks up into a number of small one-seeded parts called mericarps.

 

(b) Indehiscent fruits

Dry fruits that do not split open/dehisce to release the seeds.

(i) Nuts e.g. macadamia

The pericarp is tough and woody.

 

(ii) Caryopsis e.g. maize

Seed coat and pericarp are fused.

(iii) Cypsela e.g. Bidens

One-seeded fruit where the seed is free from the pericarp.

 

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