A lithograph of Cocos Weddelliana from the book, L'Illustration Horticole: Revue Mensuelle Des Serres et Des Jardins (1875)… Free Image from public domain license 
Water Lily (1920 - 1930) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Blue Irises (1900 - 1930) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Sparrow on blooming magnolia branch (1900 - 1930) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally… Free Image from public domain license 
Birds and plants (1900 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Indian tobacco (Lobelia inflata) from Illustrations of Himalayan plants (1855) by W. H. (Walter Hood) Fitch (1817-1892). Free Image from public domain license