Helia Bravo Hollis, MS
Helia Bravo Hollis was a renowned botanist and made great contributions to the study of cacti. She was born in 1901 in Mixcoac, an area in southern Mexico City. In her youth, she was renowned for her achievements, receiving a diploma of achievement from President Porfirio Diaz. In 1919, she entered Escuela Nacional Preparatoria (National […]