Benjamin Daydon Jackson

Benjamin Daydon Jackson was a pioneering botanist and taxonomer who wrote the first volume of Index Kewensis to include all the flowering plants.

Jackson was the eldest child of Benjamin Daydon Jackson and Elizabeth Gaze , born in London and educated at private schools. He is perhaps best known as the compiler of Index Kewensis, a reference book which appeared from 1893 to 1895, and which was at once accepted as authority throughout the world for names of flowering plants. In 1880 he was elected secretary of the Linnaean Society.

Source: Wikipedia