Austrobaileya Flower (image) University of Tennessee at Knoxville Caption By hand pollinating the rare vine Austrobaileya, whose flower is seen here, University of Tennessee, Knoxville, researcher Joe Williams uncovered new information about the origins of flowering plants' incredible diversity. Credit Joe Williams/University of Tennessee, Knoxville Usage Restrictions Only with appropriate caption or credit. 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.