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Keywords from Image Description:
NdP Batrachospermum gelatinosum. Batrachospermum gelatinosum Illustration from Naturgeschichte des Pflanzenreichs table LII NaturgeschichtedesPflanzenreichsTafelLII NaturgeschichtedesPflanzenreichsTafelLII Jacob Sturm derivative work Thiotrix cut out for Batrachospermum Thiotrix NaturgeschichtedesPflanzenreichsTafelLII PDold