Eunotia sp. 7.

Bukhtiyarova, Lyudmila N., 2019, The genus Eunotia Ehrenb. (Bacillariophyta) in the Cheremsky Nature Reserve, Ukrainian Polissya, and refined terminology relevant to the raphe system morphology, PhytoKeys 128, pp. 1-31 : 18

Eunotia sp. 7. Fig. 33

Morphometric data.

Length 40 µm, width 12 µm, striae density 10 in 10 µm.

Distribution in Ukraine.

The Cheremsky Nature Reserve, tract Obkopane, ditch, epiphyton on Sphagnum sp.

Comments.

Both Eunotia sp. 6 and Eunotia sp. 7 have similar morphology, valve width and striae density. Moreover, both exemplars were found in the same sample, which may suggest that they belong to the same species, but insufficient data does not provide a conclusion at present.

Figures

Figures 28 - 35. Species of Eunotia Ehrenb. from the Cheremsky Nature Reserve. 28, 28 a, 29 Eunotia dorofeyukiae Lange-Bert. & Kulikovskiy 28 a arrow indicates pore outer on the raphe slit distal end 29 arrow indicates rimoportula at the venral corner of pole where raphe slit distal end finishes on the outer valve surface 30, 30 a Eunotia neocompacta S. Mayama 30 a arrow indicates rimoportula at the venral corner of pole, absence of a hyaline field indicates absence of terminal fissure 31 Eunotia praerupta Ehrenb. 32 Eunotia sp. 6. 33 Eunotia sp. 7. 34, 35 Eunotia tetraodon Ehrenb. Figs 28 - 31 SEM: 28, 28 a outside valve surface; 29 - 31 inside valve surface; 32 - 35 LM. Scale bars: 5 µm (28, 29, 30); 2 µm (28 a); 1 µm (30 a); 10 µm (31 - 34).