《宋书·志·卷三十四》
当时内史吕会上言说： 查核《瑞应图》，异根同体的树木叫做连理，异苗同颖的禾苗叫做嘉禾。
时内史吕会上言： 案《瑞应图》，异根同体谓之连理，异苗同颖谓之嘉禾。
At that time, Neishi Lu Shang said: according to the "Rui Ying Tu", trees with different roots but the same body are called "lianli", and rice seedlings with different seedlings and the same spikes are called "jiahe".