Department of Marine Science, Chulalongkorn University
Abstract
The currently known 18 Thai species of Gracilaria sensu lato (Gracilaria, Gracilariopsis and
Hydropuntia) were re-examined on the basis of the specimens housed in the herbaria of Kasetsart
University (Thailand), Bishop Museum (USA), and Kagoshima University (Japan) and our recently
collected material. Although Gracilaria minuta and Gracilaria rhodymenioides had been previously known
only from the Gulf of Thailand (Western Pacific), they were collected also from the Andaman Sea (Indian
Ocean). Hydropuntia eucheumatoides, previously collected only from the Andaman Sea, was found
to grow in the Gulf of Thailand (Samui Island). Four of the 18 species (Gracilaria irregularis, Gracilaria
minuta,Hydropuntia fisheri, Hydropuntia percurrens) are relatively described as endemic to Thailand,
while others are commonly found in Southeast Asian waters.In: Charoen Nitithamyong (ed.) "Proceedings of the first joint seminar on coastal oceanography : Chiang Mai, Thailand, December 14-16, 2003".conference pape