Explanation

[image:2_image50.emf] (i) A typical angiospermic anther is a bilobed structure having two theca at each lobe (ii) It is tetragonal in shape with 4 microsporangia located at each lobe in its corners (iii) Microsporangia develop into pollen sac, which produces pollen [image:2_image51.png] (a) A typical stamen (b) Three-dimensional cut section of an anther