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Q. The male cone of Pinus is composed of microsporophylls. Each microsporophyll has

AMUAMU 1996

Solution:

: In Pinus a pair of microsporangia occurs on the ventral (adaxial) surface of the microsporophyll while the dorsal surface (abaxial) is sterile. Each microsporangium is a small sessile and elongated sac like structure having two-layered wall.