Watermelon Diversity (image) Boyce Thompson Institute Share Print E-Mail Caption The seven species of watermelon have an incredible amount of diversity. Credit Xingping Zhang/Syngenta Usage Restrictions Cannot be used without getting credit from Syngenta. I am in the process of getting these permissions, but as of now I do not have them. Share Print E-Mail 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.