A) caryopsis
B) cypsela
C) capsule
D) siliqua
Correct Answer: B
Solution :
Cypsela (inferior achene) is an achenial fruit (simple, dry, single-seeded and indehiscent fruit), in which pericarp is fused with thalamus as the ovary is inferior. Single seed is attached to fruit wall at one point only. Ovary is unilocular and uniovulated. It is generally bicarpellary, eg, sunflower, marigold. In many plants, cypsela bears persistent hairy pappus for dispersal, eg, Sonchus, Dandelion, Lactuca. In caryopsis (grain) pericarp is fused with testa completely. Ovary is monocarpellary, superior, unilocular and uniovulated, eg, wheat, rice, maize, oat. Capsule is multiseeded simple, dry, dehiscent fruit. On the basis of dehiscence mechanism they are of 6 type: (i) Porocidal capsule, eg. Opium (ii) Denticidal capsule, eg, Dianthus (iii) Pyxidium capsule, eg, Portulaca (iv) Loculicidal capsule, eg, Ladys finger (v) Septicidal capsule, eg. Pansy (vi) Septifragal capsule, eg. Datura. Siliqua is an elongated cylindrical fruit derived from bicarpellary superior ovary with parietal placentation and false septum, eg, mustard.
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