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Gomphonema (Bacillariophyceae)

Gomphonema sp. from a lake in NH USA
Note branching mucilaginous stalks

Gomphonema sp. from a lake in NH USA
Girdle view

Gomphonema sp. from a lake in NH USA
A pair of cells in girdle view

Gomphonema sp. from a lake in NH USA
Wedge shape easily seen in girdle view

Gomphonema sp. from a lake in NH USA
Valve view

Gomphonema truncatum
Photograph from 'Common Freshwater Diatoms of Britain and Ireland' posted online

Diatom development team: Helen Bennion (centric diatoms); Eileen Cox, Ben Goldsmith and David Mann (raphid diatoms); Martyn Kelly (araphid and monoraphid diatoms)

Other positions: David Mann (photography), Martyn Kelly and Jane Jamieson (project management), Steve Juggins and Richard Telford (computing)

Gomphonema acuminatum Ehrenb. 1832
Modified from sketch by Ettl & Gaertner (1995) from the collection of Manfred Bölter, University of Kiel, DE

Ettl, H. & G. Gärtner 1995. Syllabus der Boden-, Luft- und Flechtenalgen. Gustav Fischer, Stuttgart.

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