Survey of Poisonous Plants Distributed in Jeju-Island

제주도(濟州道)의 유독식물(有毒植物)에 대(對)한 조사연구(調査硏究)

Because of very little information available regarding the poisonous plants distributed in Jeju-Island, the author made a survey of such plants from March, 1974 to Dec., 1977. The results obtained were as follows: 1. If not all, 68 families, 137 genera and 190 species of poisonous plants distributed in Jeju-island were classified. And 190 species were divided into 137 spp. of herbs, 45 spp. of shrubs, 3 spp. of molds and 5 spp. of toadstools. 2. Relatively, a large number of poisonous plants were distributed in wild field. Jungle area, inhabited region, seashore and high mountainous area took next place gradually by the number of plants. 3. And according to their toxic chemical components or poisoning types, they were classified as 16 spp. of cyanogenetic plants, 14 spp. of oxalate-producing plants, 14 spp. of nitrate. producing plants, 10 spp. of photosensitization and 136 spp. of the other activities.