Part one of term paper
Although only a dozen plant families are unique to , there are 530 unique genera and many unique species within these genera. As the n fragment of prehistoric Gondwanaland drifted north, its ancient flora became the basis for the present plant systems. Increasing aridity modified this vegetation, giving much of it hardened, pointed leaves of ...

Part two of term paper
... in coastal north Queensland. In climax rain forests, three layers of trees appear, entangled with shrubs, lianas, and epiphytes. Closest to original Gondwanan conditions are the temperate rain forests of Tasmania, dominated by the myrtle beech and swathed in tree-ferns and mosses--called moss forests. The second type of vegetation, communities dominated by the tall, straggly eucalyptus trees, is the most ubiquitous, forming a wide, concentric band around the desert core. Of the 500 species, ...