Color magnitude diagrams of IC 2391 (left panel) and IC 2601 (right panel). The observed stars are shown as open circles. The VR photometry of IC 2391 is from Patten & Simon (1996). Only members and suspected members according to the analysis of Patten & Simon (1996) are shown. The BV photometry of IC 2602 is from Prosser et al. (1996) and Randich et al. (1995). The photometry was obtained by means of the WEBDA database. In the CMD of IC 2391, star VXR31, found to be a non member, is shown as a full triangle.