Koishikawa Arboretum
Koishikawa Arboretum occupies about 0.6 ha of the northwest part in Koishikawa Botanical Gardens, Graduate School of Science, and has served tree materials for research on physiology, pathology, genetics and breeding of trees as an experimental nursery since 1909.
A rhizotron constructed in 2003 has provided valuable facilities for researchersand students who study symbiology between trees and fungi. It was officially named "Koishikawa arboretum" along with the start of National University Corporation "The University of Tokyo" in April, 2004.