Professor Giles Waines, Director of Botanic Gardens at the University of California Riverside and Bert J. Davidson, M.D., Ph.D., Clinical Professor of Obstetrics and Gynecology, Western University of Health Sciences Pomona will be the featured speakers at the 14th Annual Open House of the Southern California Medical Museum 2:00 p.m., Sunday, May 1 at the San Bernardino County Medical Society headquarters, 3993 Jurupa Avenue, Riverside.