Ultrastructure of the sporoderm in megaspores of some Indian Selaginellas

Abstract

Megaspores of six species of the genus Selaginello were studied under light microscope and Scanning Electron Microscope. In general, the sporoderm of all the species investigated shows a tuberculate sculpture, intervening areas have fine reticulum. The sporopollenin units could also be examined in some megaspores by fracturing the spore wall.

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