《晋书·志·第十九章》
当时内史吕会上书道： 照瑞应图》，不同根却同体叫连理，不是一棵禾苗却谷穗相连叫作嘉禾。
时内史吕会上言： 案《瑞应图》，异根同体谓之连理，异亩同颖谓之嘉禾。
At that time, the Minister of History, Lu Shang, wrote: according to Ruixingtu, if different roots have the same body, it is called Lianli. If it is not a wheat seedling but a rice ear, it is called Ji禾.