lamina (algae)

The lamina or blade in macroscopic algae like seaweed is a generally flattened structure that typically forms the principal bulk of the

thallus Thallus (plural: thalli), from Latinized Greek (), meaning "a green shoot" or "twig", is the vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria. Many of these organisms ...

. It is often developed into specialised organs such as flotation bladders and reproductive organs. The lamina is typically an expansion of the stipe which in term is attached to the substrate by the holdfast. Brown algae {{Protist structures