Hamatani, S. (The Hiroshima Botanical Garden)

Observations of plants of Mt. Roraima and the around area in Guayana Highland

It was examined plants and pH of soils at Mt. Roraima, which was one of the table mountains of Guayana Highland in north of South America, and at Parai-Tepuy which was a lower area near Mt. Roraima. The values of pH were observed between 4.0 and 6.0 on the upper-areas of Mt.Roraima, and between 5.0 and 5.5 at Parai-tepui. According to geographical isolation and climatic differences, it was observed complete differences in the vegetations between Mt. Roraima and Parai-tepui.