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Algae > Volume 13(4); 1998 > Article
Algae 1998;13(4): 427-446.
Taxonomy and Morphology of Undaria( Alariaceae, Phaeophyta) in Korea
Young-Pil Lee, Jang-Taek Yoon
Department of Biology, Cheju National University, National Fisheries Research & Development Institute, South Sea Fisheries Research Institute
Taxonomic circumscription of the genus Undaria has been discussed on a confused generic concept since Okamura (1915). As the description of Undaria was made by Suringar (1872-1874) and Kjellman (Kjellman and Petersen 1884), the genus Undaria was well defined with the descriptions given by Suringar (1872-1874) and characterized by fibrous holdfast, two-edged stipe issuing undulato-plicate wings as sporophylls, and pinnatifid blade with a midrib. The infraspecific taxa previously suggested by Suringar (1872-1874), U. Pinnatifida (Harvey) Suringar var. vulgaris Suringar and U. pinnatifida (Harvey) Suringar var. elongata Suringar, have priority over the infraspecific taxa suggested by Yendo (1911). U. pinnatifida var. elongata occurs in Jindo and Ullungdo Islands, Korea while U,. pinnatifida var. vulgaris in the other places. A new species, U. crenata Y.P. Lee sp. nov.,is to be added in the genus Undaria, which is characterized by linear-lanceolate blade with midrib and laciniate margine, depressed stipe with short wings, and sori on the surface of wing and midrib. Laminaria peterseniana Kjellman (Kjellman and Petersen 1884) should be excluded from Undaria, which has been generally known as a member of the genus under the name of Undaria peterseniana (Kjellman) Okamura since Okamura (1915).
Key words: morphology, taxonomy, Undaria, U. pinntifida, U. pinnatifida var. vulgaris, U. pinnatifida var. elongata, U. crenata Y. Lee sp. nov

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