Anna Atkins - (Wikipedia) most likely first female photographer. Used cyanotypes of dried seaweed to illustrate her book : Photographs of British Algae: Cyanotype Impressions
Dictyota dichotoma, in the young state; - Ocean Flowers: Anna Atkins's Cyanotypes Of British Algae - New York Public Library
How to Print Photographs in the Sun Using the Classic Cyanotype Process. An extract from the book Blueprint to cyanotypes describing the classic or traditional cyanotype process. The basic cyanotype recipe has not changed very much since.
The First Female Photog Was an English Botanist Who Made Cyanotypes of Plants