Lists of web sites where you can find botany illustrations

I was looking for web sites where I can find botany illustrations. Here is the list of the web sites:

• http://pharm1.pharmazie.uni-greifswald.de/allgemei/koehler/koeh-eng.htm
• Flora von Deutschland Österreich und der Schweiz (1885)
• Curtis's Botanical Magazine · Rare Books · Special Collections Exhibits

Images on these web sites seem to be in the public domain because their copyrights has expired. Please check the copyrights again according to your country's regulation.

:)