Silva Center for Phycological Documentation: Index Nominum Algarum

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Gomphonema fractum Schumann
Schr. K. Phys.-Ökon. Ges. Königsberg 3(Abh.): 187, pl. IX: fig. 32. 1862. (L)
Type locality: Russia: Kaliningrad ["Königsberger Lager; Offene Süsswasser"]

See image Rhoicosphenia curvata var. fracta (Schumann) Cleve 1895
See Rhoicosphenia fracta (Schumann) De Toni 1891
See Rhoicosphenia abbreviata var. fracta (Schumann) H. Pankow 1990, inval.

Retrieve all Gomphonema
Get original family assignment from Index Nominum Genericorum
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