Eunotia sp. 2

Ruwer, Daiane Trevisan & Rodrigues, Liliana, 2021, Sediment diatoms from Upper Paraná River floodplAiN lAKeS: New recordS, Iheringia, Série Botânica (e 2021012) 76, pp. 1-16 : 10

publication ID	https://doi.org/ 10.21826/2446-82312021v76e2021012
persistent identifier	https://treatment.plazi.org/id/602387C1-FF94-7B64-DCBD-0766FAEF705D
treatment provided by	Felipe
scientific name	Eunotia sp. 2
status

Treatment

Eunotia sp. 2

( Figs. 83-85)

Valves with dorsal margin slightly convex, ventral margin straight to slightly concave. Slight swelling in the median region of two or only in one valve. Ends cuneate, slightly detached from the valve body. Striae predominantly parallel. Length: 37.5-65.0 μm; width: 7.0-9.5 μm; striae 7-13 in 10 μm. Eunotia sp. 2 resembles Eunotia formica Ehrenberg and Eunotia myrmica Lange-Bertalot , concerning the presence of slight swelling in the median region, the shape, and the striae pattern at the ends. However, these taxa have capitate ends detached from the valve body and different length/width ratios ( Lange-Bertalot 2011, Metzeltin & Lange-Bertalot 1998).

Material examined: BRAZIL, MATO GROSSO DO SUL: Taquaruçú, Patos Lake , 23.III.2018, sediment, D. T. Ruwer (Nupélia UEM - 18109, 18111-118) .

Cocconeidales Cox 2015 Cocconeidaceae Kützing 1844