Description: English: Black and white botanical illustration of the leaves of Annona sclerophylla. Date: 17 June 1914. Source: Safford, William Edwin (1914). "Classification of the Genus Annona with Descriptions of New and Imperfectly Known Species". Contributions from the United States National Herbarium. 18: 22–57. Author: William Safford is the author of the article that the illustration came from, the illustration itself is unattributed.