Harold St. John

Harold St. John (July 24/25 1892 – December 12, 1991) was a professor of botany at the University of Hawaiʻi at Mānoa from 1929 to 1958. A prolific specialist in field botany and systematics, he is credited with naming about 500 new species of ''Pandanus'', along with many other species, especially in the Pacific Islands. Provided by Wikipedia