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Guide to Fragilaria recapitellata

Lange-Bert. and Metzeltin 2009

Fragilaria Recapitellata Guide
Credit: Ian Bishop, Sarah Spaulding
  1. Capitate ends
  2. Narrow axial area
  3. Central area expanded on one side of valve
  4. Rimoportula present

Valves are wide and linear with capitate ends. Stria density is uniform across the valves, with 16-20 striae in 10 μm. The axial area is narrow and widens slightly near the central area. The central area unilaterally expands toward the valve margin. A single rimoportula is present. Spines are absent.