Anna Atkins, from Photographs of British Algae

Anna Atkins cyanotype of three slender ribbon-like specimens.

Laminaria fascia

NYPL record

Anna Atkins cyanotype of overlapping translucent kelp.

Laminaria bulbosa

NYPL record

Anna Atkins cyanotype of long, looping ribbon-like algae.

Himanthalia lorea

NYPL record

Anna Atkins cyanotype of five branching algae specimens.

Polysiphonia fastigiata

NYPL record