Grapevine speciments (IMAGE) University of California - Berkeley Caption UC Berkeley postdoctoral scholar Alexandra Kahn (left) and graduate student Monica Donegan with historic grapevine specimens from the University and Jepsen Herbaria. Credit Mathew Burciaga/UC Berkeley Usage Restrictions with credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.