This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Bacillariales aus Innerasien gesammelt von Sven Hedin BHL. Bacillariales aus Innerasien gesammelt von Sven Hedin Text Drawing biodiversitylibrary org title Hedin Sven Anders Hustedt Friedrich Public domain The BHL considers that this work is no longer under copyright protection Biodiversity Heritage Library Check categories