Many have edible fruits. Backhousia Seven species are found in eastern Australia. Backhousia citriodora yields an essential oil. Eucalyptus 500 species are found in Australia and two or three species in Indo Malaysia. The barks of the trees of this family vary considerably but, being easily recognized, are an aid in classification and account for some of the common names.
Eucalyptus oils vary in chemical composition.
Behl et al. Eugenia 1000 species are found in tropical and subtropical regions. Many have edible fruit. Myrtus 100 species are native to tropical and subtropical regions especially of America. Myrtle This West Asian tree which figures in the Old Testament has long been naturalized in Europe.