(family Myrtaceae, subfamily Leptospermoideae)
A genus of trees and shrubs which are closely allied to eucalypts, but which have flower petals and no operculum, and opposite leaves. They are found in or near rain forests in the east. A. costata (Sydney red gum or smooth-barked apple) is a tree growing to at least 14 m, with red bark and white flowers in spring and summer. It is the dominant tree of deep sands behind coastal dunes in New South Wales, and on alluvial sands. There are 8 species, all endemic to Australia.
Subjects: Plant Sciences and Forestry.