<i>Plocamium violaceum</i> (IMAGE) Smithsonian Tropical Research Institute Caption Spectacular marine algae like this specimen of Plocamium violaceum, are easily identified using the new marine plant guide. Credit Dianne Littler Usage Restrictions This image may be used once per article that mentions the new data base. Please contact D.S. Littler (littler@si.edu) for higher resolution images or to use the image for other purposes. 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.