A) parietal
B) marginal
C) axile
D) basal
Correct Answer: A
Solution :
Parietal placentation is found in Brassicaceae (Cruciferae). Here carpels are fused only by their margins, placentas than appearing as internal ridges on ovary wall. In marginal type, placenta develops along the junction of two carpels in a unilocular ovary e.g., pea. In axile placentation margins of carpels fold inwards fusing together in centre of ovary to from a single central placenta, ovary is divided into as many compartments as there are carpels e.g., Asphodelus, Hibiscus. In basal placentation the ovule are few or reduced to one and are borne at the base of ovary, the ovule when solitary often filling the cavity. The ovary is unilocular e.g., Compositae.
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