<i>Ursinia speciosa</i>: Microscopic Petal 'Striations' (IMAGE) University of Cambridge Caption This is a close up top view of the microscopic striations found on the surface of the dark pigment area of Ursinia speciosa petals. Taken using Scanning Electron Microscopy imaging. Credit Tobias Wenzel Usage Restrictions Please credit 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.