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According to the *Guang Zhi* (Broad Records): It is produced in the cliffs of Ezhou, Yuezhou, and other prefectures. The tree is named Haiteng (Sea Vine). The stamens of its flowers scatter on the rocks, and local people collect them, referring to the substance as "Huang" (Yellow). Those collected directly from the tree are light and exquisite, called "Lacao" (Wax Grass). It has a sour and astringent taste and is toxic. It primarily treats dental caries (tooth decay); when applied, the teeth fall out. Regarding what is currently called "Tonghuang" (Copper Yellow), its collection method is no different from collecting "Shilei" (Stone Tears). Painters and alchemists both use it frequently.

According to the *Han Shu* (Book of Han): During the reign of Emperor Wu of Han, the Western Regions presented "Fanhun Xiang" (Resurrection Incense). The *Wu Wang Nei Zhuan* (Inner Transmission of King Wu) states: In the Jue Cave, there is a Fanhun Tree. Its roots are harvested, boiled in water in a cauldron, and once the juice is formed, the dregs are removed. It is then refined with intense fire until it resembles lacquer; upon solidification, the incense is formed. Envoys from the Western Regions stated that there are six types. The Emperor asked: What are their names? One is called Fanhun (Return Soul), one Jingjing (Startle Essence), one Huisheng (Restore Life), one Zhentan (Shake Altar), one Renmajing (Human-Horse Essence), and one Jiesixiang (Stop Death Incense). Burning an amount roughly the size of a bean allows those who have died from epidemics to revive upon smelling the fragrance, hence it is called Fanhun Xiang.

According to Xu Biao's *Nan Zhou Ji* (Records of the Southern Prefectures): It grows in the Nanhai region. It is a large tree in residential gardens. The leaves are round, with flowers; it is slightly cold in nature and slightly toxic. It primarily treats black skin tinea, floral tinea, and wandering wind on the head and face. It is suitable for inclusion in facial powders and Zao Dou (Algae Beans); planting it near the You Shu region also results in successful growth.

Luoyan Mu (Wild Goose Dropping Wood)
According to Xu Biao's *Nan Zhou Ji*: Luoyan Mu grows in the mountains and wilds of Nanhai. It grows as a vine, with sides as smooth as if cut by a knife; it is also found in Yanmen, Daizhou. The vines can grow over one zhang high; geese flying by get entangled in them, hence the name Luoyan Mu. It is also said that geese carry it to Yanmen, Daizhou, drop it, and let it grow, thus giving it this name. It is also produced in Yazhou, Shu region. It has a neutral and warm taste and is non-toxic. It primarily treats wind-pain (rheumatic pain), traumatic injuries, Hongjiaojiao swelling (podagra/foot qi swelling), and abdominal fullness with deficiency bloating. Boiling the powder with wood to extract the juice for soaking and washing yields immediate effects. It also primarily treats female yin sores with edema; boiling it with Chunmu (Toona Sinensis wood) yields excellent results.

The *Tu Jing* (Illustrated Classic) records: Luoyan Mu is produced in Yazhou. It has a sweet taste and is neutral in nature, non-toxic. It treats postpartum blood and qi pain, as well as diseases such as fractures and internal trauma. Its seedlings grow into vines wrapping around large trees; the shape and color of the seedling leaves are mostly similar to tea, but it has no flowers or fruits. Local people harvest the seedlings in the fourth month for medicinal use.