Pinnularia Brebissonii Guide
Credit: Loren Bahls
  1. Valves fusiform to nearly elliptic
  2. Apices broadly apiculate
  3. Fascia rhombic

Pinnularia brebissonii has small to medium-sized elliptic to fusiform valves, with broadly apiculate apices. The central area is a rhombic fascia. Striae number 10-13 in 10 µm.

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