Mangrove swamps are coastal wetlands found in tropical and subtropical regions. They have different types of special root systems and adaptations to cope with the extreme saline environment. Epiphytic algae associated with the mangroves are significant in increasing the productivity of the ecosystem as well as nutrient cycling. The presence of algae doubles the carbon sequestration power of mangrove forests. Among the mangroves, some species like Avicennia are wide in occurrence and their pneumatophores contains abundant algal microflora. Few studies on mangrove epiphytic algae are available. However the previous studies reported a number of mangrove associated algae belonging to different groups. Recently developed technologies provides a lots of opportunities to utilize and reveal the role of these epiphytic algal forms for a better environment in future. Hence the present paper makes an attempt to review the studies regarding epiphytic algal forms, their distribution, biomass and seasonal occurrence associated with pneumatophores of Avicennia species.