Abstract
Based mainly on the results of pollenanalyses of the late Pleistocene deposits in Japan, the vegetational succession was surveyed.
1. We are able to reproduce the vegetation during the Main Würm reasonably by the parallel replacement of the present vegetational zone. This means the vegetation type during the Main Würm can still be found somewhere in Japanese Islands at present.
2. During the inter-glacial period including sub-interglacial stage, warm and cool temperate elements had fluorished with some subtropical extinct species from Japan such as Lagerstroemia near the sea-side areas of the western part of Japan at least. From this fact it may be inferred that the climate at that time was cooler in summer and milder in winter than at present.