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Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .

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Map of south Florida Loxahatchee (LOX) WCA 2A WCA 3A Biscayne Bay Shark River Slough (SRS) Taylor Slough (TS) Florida Bay Everglades National Park (ENP) Everglades National Park (ENP)

Pinnularia viridiformis

Pinnularia viridiformis

Krammer, K. (1992). Pinnularia eine Monographie der europäischen Taxa. in: Bibliotheca Diatomologica 26, pp. 160-161; 326-327 [t.68:1-2]
Pinnularia viridis var. minor Cl. 1891; Pinnularia streptoraphe var. minor (Cl. 1891) Cl. 1895
Ecological Preference:
Valve is linear in shape, with straight to weakly wavy sides, and dully- to broadly-tapered wedge-shaped edges; axial area widens into a small circular central area with small, round central pore; raphe is semicomplex to complex, appearing from time to time as a wide lateral raphe; length is 80-165µm, breadth is 14-22µm; striae count is 7-9 in 10µm
  • Transect Project

  • Sample localities:
  • Taylor Slough (TS)