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International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Imprimir: 1521-9429
ISSN En Línea: 1940-4328

International Journal on Algae

DOI: 10.1615/InterJAlgae.v6.i2.10
pages 101-115

Morphological variability and taxonomy of the Baikal endemics from the genus Cyclotella Kütz. (Bacillariophyta)

S. I. Genkal
I.D. Papanin Institute for Biology of Inland Waters of RAS, Settle Borok, Nekouz District, Yaroslavl Region 152742, Russia
G. I. Popovskaya
Limnological Institute Siberian Department of the Russian Academy of Sciences, 3, Ulan-Batorskaya St., 664033, Irkutsk, Russia


The results of electron-microscopic studies on morphological variability of frustules of the Baikal diatomic algae Cyclotella baicalensis Skv. and C. minuta (Skv.) Antipova are presented. The regularities of variability found in the main structure elements of frustules have been observed in other taxa of the genus. The character and extent of variability in the quantitative traits of C. baicalensis and C. minuta are the same as in other representatives of Cyclotella. There is no reason to isolate C. ornata (Skv.) Flower into an independent species. A number of traits are given for identification of “intermediate” forms.

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