Honshu Island, Yamaguchi Prefecture, in the village of Sengo-Kubara, 2½ miles n.w., of Yokoyama village, Iwakuni City. (25.6 miles west of Hiroshima City), base of east slope at Castle Mountain (Shiro-yama) National Forest, west bank of the Nishiki River., Yamaguti, Japan, Asia-Temperate