MAHONIA SAGRANA, A NEW SPECIES FROM CUBA, AND LECTOTYPIFICATION OF MAHONIA TENUIFOLIA AND BERBERIS FRAXINIFOLIA FROM MEXICO

The only Mahonia species found in Cuba is investigated. Although known since the nineteenth century, it has previously been identified as Mahonia tenuifolia (or its synonym Berberis fraxinifolia), otherwise found in Mexico. The Cuban species is shown to differ inter alia from the Mexican species by its leaf shape and texture, shorter racemes and pedicels, and greater number of ovules. The habitat and distribution of the species are described. Mahonia tenuifolia and Berberis fraxinifolia are also lectotypified.