Silva Center for Phycological Documentation: Index Nominum Algarum

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Indexes (very large files) to all taxa:

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Gomphonema olivaceum var. thumii ('thumi') Fricke
A. Schmidt's Atlas: pl. 266: figs. 26-28. 1906. (nomen)
Type locality: Germany: Leipzig

See Gomphonema thumii (Fricke) H. Lange-Bertalot 2005

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