Table 3. List of species with their corresponding biome and phylogenetic associations and drought indices as described by Niinemets and Valladares (2006). Drought tolerance is expressed as an index where one denotes low and four high tolerance to drought. Category of the drought tolerance is denoted in parenthesis as follow: I – intolerant, M – moderately tolerant, T – tolerant. All species came from local ecotypes. Species are ordered by drought tolerance index from the most intolerant to the most tolerant.