Thank you for reporting, we will resolve it shortly
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.