Authors:
Dieng Birane, Mbaye Mame Samba, Diouf Jules, Diouf Macoumba, Diouf Ndongo, Mall Ibrahima, Gueye
Fatou Kine, Gaye Alioune, & Noba Kandioura ,Senegal |
Abstract:
The floriculture sector is expanding rapidly in Senegal and particularly in Dakar where it is noted
an important plant diversity consisting of both native species and species introduced for a very
long time or recently. However, ornamental succulents have been the subject of little scientific
investigation. In addition, little is known about the distribution of these species in the major
taxonomic groups. Objective: It is with this in mind that this study was undertaken to
characterize the succulent ornamental flora identified in Dakar. It proposes to analyze the
taxonomic, biological and chorological spectra. Methodology and results: To carry out this
study, a traveling inventory was carried out in the various nurseries in the city of Dakar. Thus,
the results showed that 35 succulent ornamental species, belonging to 20 genera and united in 12
families were identified. The most diverse genera are five (5) and include 60% of the species
listed, or 21 species in total. These genera are in descending order: Kalanchoe (5 species),
Euphorbia (5 species), Agave (3 species), Sansevieria (3 species) and Tradescantia (2 species).
The distribution of these species in the major taxonomic groups indicates that the dicotyledons
are largely predominant and represent 58.33% of families, 60% of genera, and 62.86% of
species. In addition, this flora is dominated by 4 families which include 60% of the species
listed, or 21 species in total. These families are: Euphorbiaceae (7 species), Asparagaceae (5
species), Crassulaceae (5 species) and Apocynaceae (4 species). This flora is mainly made up of
perennial species which account for 97.14%. This flora is mainly made up of perennial species
which account for 97.14%. In contrast, analysis of the chorological spectrum has shown that this
flora is dominated by African and African-American species which each have 25.71 flora |
