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Guide to Chamaepinnularia gandrupii

(J.B.Petersen) Lange-Bert. and Krammer 1996

Chamaepinnularia gandrupii guide
  1. Valve linear slightly trinudulate
  2. Ends capitate
  3. Central area elliptic
  4. Axial area narrow

Valves are linear and slightly triundulate, with capitate ends.  The axial area is narrow and linear. The central area is elliptic and apically elongated. Striae are weakly radiate in the valve center and convergent at the ends.