botanical reference

FLICKR - BHL
https://www.flickr.com/photos/biodivlibrary/page1700

PLANTILLUSTRATIONS
www.plantillustrations.org

NATURAL HISTORY MUSEUM - FRANCE
http://bibliotheques.mnhn.fr/

BOTANICAL ARTISTS
www.botanicalartandartists.com
http://www.porter-design.com/artists.htm

http://www.design-is-fine.org/tagged/botanical-illustration

BOTANICUS
https://www.botanicus.org/Search.aspx?searchTerm=BOTANY

rkd
https://rkd.nl/en/explore/images#filters[naam]=Robert%2C+Nicolas

wikimedia
https://commons.wikimedia.org/wiki/The_North_American_Sylva#Vol._1