Chen Collection, Middle Volume Radical: Tree (mù) Entry: 20 Page 561, Entry 16 Pronounced li Shuowen Jiezi says it refers to a device for straightening the fingers. Xu Kai says it refers to using wood to straighten ten fingers and binding them. Guangyun says it refers to a horse manger. In the poem by Huan Wen of the Jin Dynasty regarding Cao Cao, it is written: An old steed lies by the manger, yet its heart is set on a thousand miles. It is also written as a variant form (li). In the Biography of Mei Fu from the History of the Former Han (Hanshu), it is written: Lying by the mangers are a thousand teams of horses. It also refers to a type of tree. In Zhang Heng's Rhapsody on the Southern Capital (Nandu Fu), it appears alongside maples and other trees. Li Shan notes that it is the same as the sawtooth oak (li). Additionally, the Rhyme Compilation (Yunhui) cites a poem by Han Yu titled Mountain Rocks (Shanshi), which mentions seeing pine and oak trees all ten spans in circumference. The Correct Rhymes (Zhengyun) notes that a tray used for silkworms is called a manger (li).