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Algae > Volume 11(3); 1996 > Article
Algae 1996;11(3): 269-275.
Taxonomic Study of Amphiroa valonioides Yendo(Corallinaceae, Rhodophyta) in Korea
Do-Sung Choi, In-Kyu Lee
Department of Science Education, Kwangju National University of Education, Department of Biology, Seoul National University
Morphological and anatomical characters of Amphiroa valonioides Yendo are investigated with field materials and taxonomic accounts are given to the species. The species is well defined by a 1-2 cm height, one-tired geincula and prominent tetrasporangial conceptacles scattered on all sides of intergenicula. And these characters agree with the original description by Yendo. The significant taxonomic characters of the species newly investigated in this study are that the surface structure of intergeniculum is a typical Amphiroa-type, and it has trichocytes and genicular medullary filament s connected by secondary pits. In addition, the species grow on rocks in the calcareous debrisfilled tufts with conspicuous crustose holdfast. It is a warm temperate species, and grows in the sub-tidal zone of the Cheju Island and its vicinities in Korea. The distribution region of the species seems to be th warm temperate and tropical coasts of the North Pacific Ocean. Male and female reproductive organs of the species have not been found along the coasts of the world until now. Therefore, it seems to need further considerations about its reproduction and life history.
Key words: Amphiroa valonioides Yendo, Corallinaceae, Rhodophyta, taxonomy

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