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Guide to Gomphonema manubrium

Fricke 1904

Gomphonema Manubrium Guide
Credit: Meredith Tyree, Ian Bishop
  1. Central valve inflated
  2. Headpole narrow, rounded
  3. Footpole very narrow

Valves with an inflated center. The headpole is relatively narrow and rounded. The footpole is narrow and rounded. The axial area is lanceolate.

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