Helia Bravo Hollis was a plant researcher in Mexico, one of few women working in biology in the 1930s. Two species of plants, Ariocarpus bravoanus and Opuntia bravoana, were named to honor her.
She died in 2001, just before her 100th birthday. I'm a huge fan of hers because Latina women are underrepresented in the history of science and because I love desert plants. Also, mid-century field clothes were pretty cool. She did all her fieldwork in a skirt!