Close-up photo of oranges sliced transversely to show the thick rind and segments.

The fruit of Citrus ( #Rutaceae) is called a hesperidium (as in the golden apples of the Hesperides). A hesperidium is a septate berry (from many carpels) with thick leathery skin. 📷: oranges by David Stewart CC BY 2. #fruit #hesperidium #Botany #PlantScience 🌾🧪