Question

"The anther is bilobed and each lobe encloses 4 pollen sacs or microsporangia."
Is the above statement true? If yes then explain

Answer 1

An anther is bilobed and dithecous means each anther has two lobes and each lobe again has two chambers. Each chamber bears a single microsporangium. So there are four microsporangia in each anther. If the anthers are not lobed, they can only accommodate one sporangium. To produce more number of pollens by each anther, it is bilobed and dithecous.