Abstract:

The genus Remusatia with 4 species is distributed in tropical Africa and Asia. The primitive species R.vivipara occources in an area with the same range as large as that of the genus Remusatia. The origin, development and disjunction of R. vivipara's distribution area is closely related to the genus. The writer of the present paper considers that the genus Remusatia as well as R. vivipara might be originated in Indian peninsula of Gondwanaland. During Oligocene period, Remusatia vivipara pas-sed through Arabian peninsula and furthered into Africa. In other word, they migrated directly into oth-er tropical forest regions.

Key words: Distribution area, Formation, Disjunction, Genus Remusatia