Tulip - Philipp Otto Runge
A Still Life Of An Iris, A Tulip, A Rose, Moss-roses And Other Flowers And Plants In A Glass Vase, Flanked By A Lizard And A Dragonfly, All Within A Stone Niche - Roelandt Jacobsz Savery
Arum Lilies - Samuel John Peploe
Two Caterpillars And A Chrysalis On A Vine - Maria Sibylla Merian
Cows In A Summer Landscape - Jan Willem Van Borselen
The Sacred Tree of the Hindoos at Gyah Bahar - Thomas Daniell
A Sunlit Interior - Carl Vilhelm Holsoe
A Statue Of The Virgin And Child In A Niche Surrounded By Garlands With Tulips, Roses, Carnations, Anemonies, Daffodils, And Other Flowers - Antwerp School
Autumn in the pastures, Epsom - John Frederick Lewis
Windflowers 1912 - Gaines Ruger Donoho
Note that a few countries have copyright terms longer than 70 years: Mexico has 100 years, Colombia has 80 years, and Guatemala and Samoa have 75 years. This image may not be in the public domain in these countries, which moreover do not implement the 
