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Souddi Mohammed

  • Biodiversity Journal, 14 (3): 0441-0448

    Souddi Mohammed, Bendidjelloul-Ghezlaoui-Baha-Eddine & Nouar Belgacem
    Floristic diversity and therapeutic proprieties of medicinal plants in the region of Tlemcen (Western Algeria)
    https://doi.org/10.31396/Biodiv.Jour.2023.14.3.441.448

    ABSTRACT
    This study is devoted to assessing the floristic diversity (systematic, biology, chorology) and therapeutic properties of medicinal plants in the region of Tlemcen (Western Algeria); a survey was conducted over four successive study years (2014–2015–2016–2017) in the study area. The objective of this study was to contribute to the knowledge and description of these plant groups through an inventory of vegetation. The floristic inventory showed us to identify 71 medicinal plants belonging to 34 families; including the dominance of Asteraceae (15.5%) followed by Lamiaceae (11.3%) and Poaceae (8.5%). The biological spectrum of these species is characterized by a high presence of Therophytes (26.8%) followed by Chamaephytes (23.9%). In biogeographical terms, Mediterranean species are the most represented and constitute more than half of the medicinal flora (54.9%). These plants are principally used in order of importance in the treatment of digestive pathologies (15.3%), dermal diseases (13.8%), and diuretics (9.4%). The results obtained are a very valuable source of information for the region studied and for the national medicinal flora.

  • Biodiversity Journal, 12 (3): 0729-0732

    Belgacem Nouar, Benchohra Maamar, Hicham Berrabah, Mohammed Souddi, Okkacha Hasnaoui & Abdelkader Nouar
    Diversity and floristic composition of Djebel Nessara region (Tiaret -Algeria)
    https://doi.org/10.31396/Biodiv.Jour.2021.12.3.729.732

    ABSTRACT
    This work undertaken represents an phytoecological approach of Djebel Nessara vegetation (Tiaret Mountains). The floristic analysis allowed us to release a list of 119 taxa distributed in 96 genera and 35 families. Angiosperms constitute 97.47% (Monocotyledonous 21% and Dicotyledonous 76.47%) while gymnosperms represent only 2.52%. The most represented families are Asteraceae, Fabaceae and Poaceae with percentages of 19.3%, 10.9% and 9.2%, respectively. The comparison of the different biological spectra shows the importance of the therophytes to the number of 57 species with 47.9%. On the biogeographical level, we notice the predominance of Mediterranean biogeographical species with 47.1%. Shannon's biodiversity index (H) is 4.28, while Piélou's Equitability (J) is 0.89 and the Simpson's index (1-D) is 0.98. However, the Perturbation index (PI) is in the order of 61.34%.