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Guide to Nitzschia palea var. tenuirostris

Grunow in Van Heurck 1881

Nitzschia Palea Tenuirostris Guide 1
Credit: Pat Kociolek
  1. Valves with parallel sides
  2. Apices subcapitate
  3. Valve width 2.5-3.5 µm
  4. Fibulae approx. 12-15 in 10 µm

Valves with parallel or nearly parallel sides, tapering to a fine apex with subcapitate apices. Striae are not visible, or barely visible, with LM.