Diachronic study of the floristic diversity of the Royal Mausoleum of Mauretania, Algeria

This study aimed to provide knowledge on the mural flora of the Royal Mausoleum of Mauretania. Through floristic surveys, we complied a catalog listing168 vascular plants belonging to 141 genera and 58 families. Asteraceae and Poaceae were the most dominant families, constituting 24.81% of the species. Dominant characteristics of this flora included therophytes (41.07%) and Mediterranean floristic elements (67.26%). To update the floristic list of the Mausoleum, we compared our data with 3 old lists from 1867, 1928 and 1985. The diachronic analysis reveals the persistance of 35 taxa representing 16.27% of 215 taxa listed since the first inventory, and the emergence of 30 new taxa (13.95%). The diversity of this wall flora is associated with changes in the landscape around the Mausoleum as well as its conservation status.