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Guide to Pinnularia cuneicephala

(A.Mann) R.M.Patrick 1966

Pinnularia Cuneicephala Guide
  1. Central margin expanded in larger specimens
  2. Apices cuneate
  3. Axial area mottled
  4. Proximal raphe ends gradually deflected

Valves are large, with cuneate apices. The central valve is expanded, especially in larger valves The axial area is broad and mottled, and the proximal raphe ends deflect gradually.