]> Amateur botanis?t; Medical Surgeon; Research: "History of science and medicine; ... Development of the vascular system; elucidation of the estrous cycle in the rat, and the role of pituitary gonadotropin in reproduction; discover of growth hormone; discovery of and isolation of vitamin E." (vide Univ. Calif.-SF School of Medicine's web site). [collector note: California (1901-40): F, UC (orig.); Montana (1924): F] Botany Evans, Herbert McLean Evans, Herbert McLean H. M. Evans 1882 1971