Abstract: The family Araceae with 105 genera and approximately 2500 species is almost world-wide in distribution,it inhabits most major ecological zones. In this paper the areas of genera are classified into 12 dustibution patters and 29 subpatterns,namely:1. Cosmopolitan;2.Pantropic with 8 genera ,including 3 subpatterns;3.Old World Tropics with 7 genera,including 3 subpatterns;4.Tropical Asia with 27 genera,including 5 subpatterns;5.Tropical Africa with 13 genera,including 5 subpatterns;6.Tropical Australia with 1 genus;7.Neotropic with 32 genera,including 5 subpatterns;8.North Temperate with 6 genera,including 4 subpatterns;..etc.

Key words: Araceae