Stamen in pisum sativum is dithecous. Each microsporangium has 20 pollen mother cells. The total number of pollen grains formed from one flo
The Pisum sativum flower contains 10 anthers which are dithecous. Thus each stamen contains 4 microsporangia. These microsporangia develop into pollen sacs.
Thus the total number of pollen sacs in each flower
= Number of anthers X Number of pollen sacs per anther
=10 x 4
=40 pollen sacs