About A.H. Reginald Buller Arthur Henry Reginald Buller (1874–1944) was a British-Canadian mycologist and formely a professor of Botany at the University of Manitoba. He is mainly known as a researcher of fungi and wheat rust. Books by A.H. Reginald Buller Researches on Fungi, Vol. VII The Sexual Process in the Uredinales by (author) A.H. Reginald Buller