Polysiphonia affinis c. 1843 - 1853

"Polysiphonia affinis" is a cyanotype photograph by Anna Atkins, a pioneer of photography. Created between 1843 and 1853, the image showcases a delicate seaweed specimen against a vibrant blue background. Atkins' work, "Photographs of British Algae: Cyanotype Impressions", documented various algae species, highlighting her scientific interest and artistic skill. This particular cyanotype, part of her groundbreaking book, exemplifies the early development of photography, and Atkins' significant contribution to the field of botanical illustration.