4.'D Diferent antworpogimi actiilis house cimbruct on riuens? - Justify the statement utili bare simb! - ay negative
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The anther of androecium of angiospermic flowers are bilobed and each lobe is divided into two parts or theca. Thus, the anther of angiospermic flowers are called dithecous
A typical microsporangium is surrounded by four layers - epidermis, endothecium, middle layer and tapetum.
The outer 3 layers ie., epidermis, endothecium and middle layer are protective in function and help in dehiscence of anther to release pollen grains.
Tapetum (innermost layer) nourishes the developing pollen grains and the cells of tapetum generally have more than one nucleus.
When the anther is young, a group of compactly arranged homogenous cells called sporogenous tissue occupy the centre of each microsporangium.
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