In this article we will discuss about the external morphology of sargassum. 1. Thallus is large, macroscopic and brown-coloured. 2. Plant body is sporophytic and looks like an angiospermic herb. 3. Thallus is differentiated into a basal holdfast, “stem”-like main axis, and primary and secondary laterals. Some of these laterals change into “leaf”- like structures […]