Silva Center for Phycological Documentation: Index Nominum Algarum

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Indexes (very large files) to all taxa:

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Fragilaria harrisonii var. trigona Krasske
Arch. Hydrobiol. 24: 437, pl. XVI: fig. 7. 1932. (G)
Type: Coll. Krasske A VII 54 in KASSEL (fide H. Lange-Bertalot et al. in H. Lange-Bertalot (ed.), Iconographia Diatomologica 3: 83. 1996)
Type locality: Germany: Willershausen near Osterode, Harz
Upper Pliocene

See Fragilaria leptostauron var. trigona (Krasske) H. Lange-Bertalot & M. Willmann 1996

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