Article

Floristic richness and phytogeography of the “Torrente Trasubbie” nature reserve (S-Tuscany, Italy)

Authors:
Frignani F.
,
Landi M.
,
Angiolini C.
,
Boddi M.
,
Selvi F.
Publication: Flora Mediterranea
Pages: 65-96
Article history:
Abstract

The results of a floristic survey carried out in the “Torrente Trasubbie” nature reserve in Southern Tuscany (Grosseto province) are reported and briefly discussed. Firstly, a brief description of the geomorphology, climatic and vegetation of the area is given. Secondly, the list of the vascular flora is reported, which was based on field researches and herbarium material. This list includes 684 species belonging to 85 families and to 358 genera; 662 taxa are native or naturalized, whereas 28 are introduced species. The biological spectrum shows a comparable proportion of therophytes (238, 36.4%) and hemicryptophytes (240 species, 36.6%) suggesting a transition between the flora of coastal areas of southern Tuscany and that of inner mountain systems. However, the chorological analysis reveals the dominance of Mediterranean species. There are 11 endemics and a number of taxa of phytogeographical relevance at the regional and national level. The data indicate that the Torrente Trasubbie is an important area for the conservation of a complex environmental mosaic which contains a fairly high level of floristic biodiversity