Résumé
The recent publication in the Revue d'Ecolie (Terre et Vie) of a study on the impact of gulls on the vegetation of Rachgoun island in Algeria prompted the publication of a personal floristic list of the island established in 2006 but remained unpublished. For methodological reasons, the publication in question provided a partial list of plants that it was useful to complete here. Moreover, it also contained some uncertainties or errors that it seemed important to correct. Some of them are due to having difficulty with conventional floras and/or misuse of recent synonymous index. Others are due to non-intelligence of biological types sensu Raunkiaer in these classical floras. Simple and effective solutions to address these chronic shortcomings in the field of Maghrebian botany are proposed.