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Keywords from Image Description:
Beitrge zur Kenntniss der Gattung Najas Taf. VIII . iV TaflT fcH aa PTMe lai oU ' Taf VIII Illustration biodiversitylibrary org Magnus Biodiversity Heritage Library Beitrge zur Kenntniss der Gattung Najas Natural History Museum Library London bhl page dc identifier org natural history museum library london Information