Middle layers of the microsporangial wall

Tapetum present in the microsporangial wall occurs between

Tapetum present in the microsporangial wall occurs between

Main function of middle layer in microsporangium is

The outermost and innermost wall layers of microsporangium in an anther are respectively (A) Endothecium and tapetum (B) Epidermis and endodermis (C) Epidermis and middle layer (D) Epidermis and tapetum

The innermost wall layer of microsporangium is called.

The innermost wall layer of microsporangium is called.

The innermost wall layer of microsporangium is called.

The middle layer of the wall of eyeball is

Which of the following microsporangial layer posses stomium?