Article

Several infraspecific taxa within Arum italicum have been reported for the lberian Peninsula and the Balearic Islands. Nevertheless morphological distinction of these taxa is made difficult by very high individuai variation within the whole specific population. In order to provide new suitable additional characters for ii better infraspecific distinction an ecological method has been tried. A Digitai Terrain Model (DTM) of the studied area was elaborated in order to obtain, by an interpolation process, geographical and meteorologicalinforrnation for each plant locality. Canonical redundance analysis was run to evaluate relationships between morphological data and environrnental variables, and the Mantel test was used to evaluate the influence ofthe spatial distribution on the plant localities.