Name the innermost and outermost wall layers of a microsporangium in an angiosperm anther. [Foreign 2013]
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The wall layers of a microsporangium from outermost to innermost are: epidermis, endothecium, middle layers and tapetum. The first three layers generally provide protection and help in dehiscence of anther. Tapetum performs nutritive function for pollen grains.
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epidermis and endothelium
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