“串子”李是山东省沂蒙山区特有的李品种。因其果实在一根枝条上4～10个成串地互生(有的两果并生),当地群众呼之为“串子”。果型大,色泽艳丽,味甜多汁,无苦涩味,果肉味介于桃、杏、李之间,产地群众视为珍品,商品价值极高、省内果树专家认为是杏与李的天然杂交种,但其叶形及树形又极似桃。五十年代初期,沂蒙山区的沂源、沂水、蒙阴为主产区,年产果实10～15万公斤,蒙阴县 “String” Lee is a unique species of Li Yimeng Mountain in Shandong Province. Because of its fruit in a branch 4 to 10 in a series of alternate (some of the two fruits and live), the local masses called “string.” Fruit large, bright color, sweet and juicy, no bitter astringency, fruit flavor between peach, apricot, Lee, the origin of the people as treasures, high value of the goods, the fruit experts believe that the province is apricot and plum natural Hybrid, but its leaf shape and tree shape and very peach. The early 1950s, Yimeng Mountain Yiyuan, Yishui, mainly Mengyin producing areas, with an annual output of 10 to 150,000 kilograms of fruit, Mengyin County