"Tang Yun" uses the characters "luo" and "hu" for fanqie, and "Ji Yun" uses "long" and "du" for fanqie, with the same pronunciation as "lu". "Shuowen Jiezi" explains it as the name of a tree, produced in Tuo Mountain. "Tang Yun" records it as the yellow wood (huang ju mu), which can be used for dyeing. Also, "Ji Yun" and "Lei Pian" use the characters "tong" and "du" for fanqie, with the same pronunciation as "lu". Also, "Ji Yun" uses the characters "huang" and "hu" for fanqie, with the same pronunciation as "hu". It also uses the characters "long" and "wu" for fanqie, with the same pronunciation as "lu". The meanings are the same.