Dear Rahul,
Maize (Zea mays) is a monoecious plant with both types of unisexual flowers i.e Staminate as well as pistillate.
flower formula of male flower will be % , symbol of male , P3 (lodicules), A3, G0
flower formula of female flower will be % , symbol of female , P3 (lodicules), A0, G1