Floristic Analysis and Diversity of the Cruciferous species Represented by Voucher Specimens Depending on the Flora of Libya

Fathi. G. Al-Sghair, Mohammed. H. Mahklouf


The present research was designed to explore the species diversity and floristic analysis of the Family Brassicaceae depending on species represented by voucher specimens and deposited at the National herbarium depending on the data supplied from the Flora of Libya series. The results showed presence of 83 species belonging to 51 genera. The largest genera in the Brassicaceae family in the flora of Libya are Matthiola with 8 species, followed by Brassica with 7 species, Sisymbrium (5 species), Diplotaxis and Sinapis (4 species each). Second-highest monotypic genera recorded in the family Brassicaceae with 15 monotypic genera. There are 4 species endemic in this family which are (Ammosperma variabile Nigre& Le Houerou., Matthio laglutinosa Jafri, Oudneya africana R.Br. and Savignya parviflora (Delile) Webb. Simpson’s Diversity index displayed that the Brassicaceae family has high diversitydue to about 44.5% of the genera has only one species. The chorological characteristic of the Brassicaceae species showed the dominance of Mediterranean elements with the the highest percentage (33.7%) followed by Mediterranean/Irano-Turanian elements (18.1%). The life form analysis showed that Therophytes displayed the highest percentage (61.44 %) followed by the Hemicryptophytes (15.66%). It clearly showed from the map of species distribution that most of the species of the Family Brassicaceae are located within the Mediterranean region.


Flora of Libya- Brassicaceae - Species diversity- Floristic analysis- Life forms- Chorotype.

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