《太平广记·卷四百一十·草木五》
唐天宝十年，皇上对一个幸臣说： 近年在宫内种了几棵甘子，今秋结了一百五十颗果子。这些果子与江南和蜀地所进贡的没有不同。 
唐天宝十年，上谓幸臣曰： 近于宫内种甘子数株，今秋结实一百五十颗，与江南蜀道所进不异。 
In the tenth year of the Tang Tianbao Period, the emperor said to a favored minister: Several sweet cherry trees have been planted in the palace in recent years, and this autumn they have borne 150 fruits. These fruits are no different from those offered as tribute from Jiangnan and Shu. 