SYSTEMATICS OF THE GENUS POLYSIPHONIA GREVILLE (CERAMIALES, RHODOPHYTA) FROM SETSE AND KYAIKKHAMI COASTAL AREAS, MYANMAR

Two species of the genus Polysiphonia Greville (Ceramiales, Rhodophyta) collected from Setse and Kyaikkhami coastal areas of Mon State, from June 2011 to March 2015, were identified as P. subtilissima Montagne and uncertain species as P. sp.1, mainly based on morphology of vegetative and reproductive structures. The plants are widely distributed in estuaries and salt marshes attached to substrata such as pneumatophores of trunks of mangroves trees and on other solid objects. In the present study, the plants of P. subtillissima Montagne were commonly found in the Kyaikkhami coastal areas while those of Polysiphonia sp.1 were uniquely encountered in the Setse coastal areas. In addition, the comparison on main characteristics and some ecological notes of Polysiphonia spp. from Setse and Kyaikkhami coastal areas are provided.