Gelidiaceae

The Gelidiaceae is a small family of red algae containing eight genera. Many species of this algae are used to make agar.
File:Tengusa work.jpg|thumb|left|Drying Gelidium amansii to make agar

Uses

Agar can be derived from many types of red seaweeds, including those from families such as Gelidiaceaae, Gracilariaceae, Gelidiellaceae and Pterocladiaceae. It is a polysaccharide located in the inner part of the red algal cell wall. It is used in food material, medicines, cosmetics, therapeutic and biotechnology industries.