1925 Herbarium Specimen (IMAGE) Michigan State University Caption 1925 Herbarium specimen of the grass Avena fatua collected in Davis, Calif. from which two viruses were extracted. Credit Linsey Newton, Michigan State University Usage Restrictions With credit to Michigan State University License Licensed 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.