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Guide to Staurosira construens var. venter

(Ehrenb.) P.B.Ham. 1992

Staurosira Construens Ventor Guide
Credit: Eduardo Morales
  1. Valves lanceolate
  2. Axial area lanceolate
  3. Spines hollow

Valves of S. construens var. venter are lanceolate, becoming elliptic in smaller specimens. Spines are hollow, spatulate and positioned between striae.

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