Anthonotha Macrophylla (IMAGE) Smithsonian Tropical Research Institute Caption Photo that shows the external morphology of a pollen grain of the extant species Anthonotha macrophylla. Credit Ingrid Romero Usage Restrictions None 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.