Description: English: Botanical illustration of Goniothalamus monospermus (using basionym Richella monosperma) showing leavers, branches, flower parts, fruit and seeds. Date: 1856. Source:
https://www.biodiversitylibrary.org/item/134851. Author: Image drawn by Sprague, engraved by W.H. Dougal, in Atlas, Botany, Phanerogamia, Vol. I, By Asa Gray, 1956.