Diatoms of North AmericaDiatoms of North America
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Guide to Pinnularia turfosiphila

E.E.Gaiser and J.R.Johansen 2000

Pinnularia Turfosiphila Guide
Credit: David Burge
  1. Central area asymmetric
  2. Apices tapered and acutely rounded
  3. Distal raphe ends curved

Valves linear-lanceolate with an asymmetric central area. Apices are acutely rounded and tapered with curved, bayonet-shaped distal raphe ends. Valves lack a fascia.