Rhytiphlea complanata / (Polysiphonia cristata) c. 1843 - 1853

This cyanotype print by Anna Atkins, a pioneer of photography, depicts the delicate structure of the seaweed *Rhytiphlea complanata*. Atkins, who was a botanist, used the cyanotype process to capture the intricate details of various seaweeds, creating a unique and influential collection of photograms. This image showcases the delicate branches of the seaweed against a vibrant blue background, highlighting the beauty and complexity of the natural world. The cyanotype process, which uses light-sensitive chemicals, results in a distinctive blue color, adding to the aesthetic appeal of Atkins' botanical studies. This work is a testament to Atkins' contributions to both photography and scientific illustration.