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Guide to Discostella stelligera

(Cleve and Grunow) Houk and Klee 2004

Discostella Stelligera Guide
Credit: Rex Lowe
  1. Valves concave or convex
  2. Central stellate pattern of striae
  3. Marginal striae form well-defined ring

Valves are either concave or convex in the center. Central striae form a stellate pattern, although the central striae may be absent or composed of ghost striae.The marginal striae are of equal length.