Lawant & Winthagen (2001) proposed that a succulent Euphorbia, specifically E. resinifera, was portrayed about 1500 years ago, on page 149 of the monk-made parchment manuscript entitled Codex Neapolitanus. An alternative hypothesis, that the plant portrayed is a species of Caralluma, is here rejected. A full translation of the Greek text which accompanies the plant picture is also provided.