... is called "Hebon" by Spencer, and "Jew of Malta" by other writers of Shakespeare's time. The leaves are bitter, nauseous, and acrid. The succulent covering of the fruit is soft and slimy, mawkishly sweet, and mucilaginous. The leaves have a dangerous effect on the circulation of the heart, and when taken with any freedom are as fatal ... — Herbal Simples Approved for Modern Uses of Cure • William Thomas Fernie