Algologia 2015, 25(3): 231–237 https://doi.org/10.15407/alg25.03.231Morphology, Anatomy, Cytology
New data to morphology, taxonomy and distribution Eunotia biconstricta (Grunow) Lange-Bert. (Bacillariophyta)
S.I. Genkal1, T.A. Chekryzheva2- 1I.D. Papanin Inst. of Biology of Inland Waters, RAS,
- Settle Borok, Nekouzskiy District, Yaroslavl Region 152742, Russia,
- e-mail: genkal@ibiw.yaroslavl.ru
- 2Institute of Water Problems of the North, Karelian Research Center, RAS,
- 50, Pr. A. Nevskogo, Petrozavodsk 185003, Republic of Karelia, Russia
- e-mail: tchekryzheva@mail.ru
Abstract
This scanning electron microscopy study of vast materials from lakes in Karelia and Western Siberia has shown a significant morphological variability of quantitative (valve length and width, number of striae and areolae in 10 µm) and qualitative (shape of valve and terminal raphe fissures) features. Based on the original and published data, this allowed extending the diagnosis of Eunotia biconstricta and referring some taxa to the synonymy.
Keywords: Bacillariophyta, Eunotia biconstricta, morphology, taxonomy, distribution
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