Algae. 1991; 6(2): 105-112.

A Study of Diatom Species Cymbella affinis Kutz. (Ⅰ) Morphology and Comparison with C. turgidula Grun. var. nipponica Skv., a Closely Related Taxon

Jung Ho Lee, Jun Chung

Department of Biology, Kyungpook National University

The samples of Cymbella affinis were collected form Yungchun Dam reservoir in Korea and observed with light and scanning electron microscope. C. affinis was compared with C. turgidula var. nipponica, a closely related species, collected form Lake Biwa, its type locality, in Japan. The number of stigma and shape of valve were not stable as dividing characters between these two taxa. Consequently there is a high possibility of Cymbella turgidula Grun. bar. nipponica Skv. to be a synonym of Cymbella affinis Kutz.

Keywords : diatom, Cymbella Affinis, synonym, C. turgidula var. nipponica