Article

This is the nineteen of a series of reports of chromosomes numbers from Mediterranean area, peri-Alpine communities and the Atlantic Islands, in English or French language. It comprises contributions on 21 taxa: Allium, Ammi, Andryala, Daucus, Diplotaxis, Emex, Mercurialis, Torilis, Urtica from Morocco, by F. E. El Alaoui-Faris, H. Tahiri, P. Cubas & C. Pardo (Nos 1688-1696); Bellevalia from Israel, by A. Giordani & L. Peruzzi (Nos 1697); Gagea from Cyprus, Italy, France, by L. Peruzzi, G. Astuti, A. De Rossa & A. Giordani (Nos 1698-1701); Calicotome from Balearic Islands, Corse, Greece, Israel, Italy, Sardinia, Sisily, Spain, Portugal, Tunisia and Morocco, by T. Cusma Velari, L. F. Caparella & V. Kosovel (Nos 1702-1705); Chamaecytisus from Canary Islands, by T. Cusma Velari, L. Feoli Chiapella, V. Kosovel & A. Santos Guerra (Nos 1706-1708).