in the WGSRPD's Southwestern Pacific region, and placed into a new region, Papuasia, whose eastern boundary extends to line 5 in map 2.

Using the Flora Malesiana definition, Malesia has a shared tropical flora derived mostly from Asia, but also with numerous elements of the Antarctic flora. Malesia is a hotspot of global biodiversity. In 1995, it was estimated that there were 42,000 species of vascular plants,