Abstract
In this contribution new chromosome data obtained from material collected in Italy are presented. It includes four chromosome counts for the following genera: Bellevalia (Asparagaceae), Genista (Fabaceae), Linaria (Plantaginaceae), and Teucrium (Lamiaceae).
Highlights
Root tips were pre-treated with 0.4% colchicine for 3 hours and fixed in Carnoy fixative solution for 1 hour
After hydrolysis in 1N HCl at 60° C, the tips were stained in leuco-basic fuchsin
Squash preparations were made on root tips obtained from germinating seeds
Summary
Bellevalia webbiana is a species endemic to a pre-Apennine belt between the administrative regions of Tuscany and Emilia-Romagna, where it occurs in the hills around Florence and Faenza, respectively (Gestri et al 2010). Chromosome counts were available for Tuscan populations only (Chiarugi 1949, Capineri et al 1979, Maggini 1972) and no data for populations occurring in Romagna were reported so far. Our count is the first for B. webbiana in this region and confirms the tetraploid asset of the species.
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