In this article we will discuss about the layers of the spore and pollen wall. Sporoderm stratification (Erdtman’s concept): Sporoderm (L. sporodermis), i.e. the spore and pollen wall is composed of distinct layers or subdivisions, the sequence of which is as follows from outside inwards in a fresh pollen grain and spore. Sclerine (Gr. Scleros […]