（《别录》中品）
【释名】垣嬴（《别录》）、天韭（《别录》）、鼠韭（《别录》）、昔邪（《别录》）。
【集解】《别录》曰∶垣衣生古垣墙阴或屋上。三月三日采，阴干。
恭曰∶此即古墙北阴青苔衣也。其生石上者名昔邪，一名乌韭；生屋上者名屋游。
形并相似，为疗略同。江南少墙，故陶弘景云∶方不复用，俗中少见也。
时珍曰∶此乃砖墙城垣上苔衣也。生屋瓦上者，即为屋游。
【气味】酸，冷，无毒。
【主治】黄胆心烦，咳逆血气，暴热在肠胃，暴风口噤，金疮内塞，酒渍服之。久服补
中益气，长肌肉，好颜色（《别录》）。捣汁服，止衄血。烧灰油和，敷汤火伤（时珍）。
（《别录》下品）
【释名】瓦衣（《纲目》）、瓦苔（《嘉 》）、瓦藓（《纲目》）、博邪。
【集解】《别录》曰∶屋游生屋上阴处。八月、九月采。
弘景曰∶此古瓦屋上青苔衣也。剥取用之。
时珍曰∶其长数寸者，即为瓦松也。
【气味】甘，寒，无毒。
【主治】浮热在皮肤，往来寒热，利小肠膀胱气（《别录》）。止消渴（之才）。小儿痫热，
时气烦闷（《开宝》）。煎水入盐漱口，治热毒牙龈宣露。研末，新汲水调服二钱，止鼻衄
（时珍）。
【发明】时珍曰∶《别录》主治之证，与《本经》乌韭文相同，盖一类，性气不甚辽远
也。
【附方】新一。
犬咬∶旧屋瓦上刮下青苔屑，按之即止。（《经验方》）
（收录于《名医别录》中品）
【释名】垣嬴（出自《名医别录》）、天韭（出自《名医别录》）、鼠韭（出自《名医别录》）、昔邪（出自《名医别录》）。
【集解】《名医别录》记载：垣衣生长在古老城墙的背阴处或屋顶上。三月三日采集，阴干保存。
苏恭说：这就是古墙北面背阴处的青苔衣。生长在石头上的称为昔邪，又名乌韭；生长在屋顶上的称为屋游。
它们的形状相似，治疗作用大致相同。江南地区少墙，所以陶弘景说：现在不再使用，民间也很少见到了。
李时珍说：这是砖墙城垣上的苔衣。生长在屋瓦上的，就是屋游。
【气味】味酸，性冷，无毒。
【主治】黄疸、心烦、咳嗽气逆、吐血咯血，肠胃中的突发高热，中风导致的口噤不开，金创（金属利器造成的创伤）内部瘀塞，用酒浸泡后服用。长期服用可以补益中气、益气力，促进肌肉生长，使面色红润好看（出自《名医别录》）。捣烂取汁服用，可止鼻出血。烧成灰后用油调和，敷治汤火烫伤（李时珍）。
（收录于《名医别录》下品）
【释名】瓦衣（出自《本草纲目》）、瓦苔（出自《嘉祐本草》）、瓦藓（出自《本草纲目》）、博邪。
【集解】《名医别录》记载：屋游生长在屋顶的背阴处。八月、九月采集。
陶弘景说：这是古瓦房屋顶上的青苔衣。剥取后使用。
李时珍说：其中长度达数寸的，就是瓦松。
【气味】味甘，性寒，无毒。
【主治】皮肤表面的浮热，忽冷忽热的往来寒热，通利小肠和膀胱的气机（出自《名医别录》）。止消渴症（徐之才）。小儿癫痫发热，时行疫病导致的心烦胸闷（出自《开宝本草》）。煎水加盐漱口，可治疗热毒引起的牙龈红肿暴露。研成粉末，用刚打来的冷水调服二钱，可止鼻出血（李时珍）。
(Recorded in the Middle Category of *Bencao Jing Shu* / *Shennong's Classic of Materia Medica by Various Authors*)
[Names] Yuanlei (from *Bencao Jing Shu*), Tianjiu (from *Bencao Jing Shu*), Shujiu (from *Bencao Jing Shu*), Xixie (from *Bencao Jing Shu*).
[Collection and Explanation] *Bencao Jing Shu* states: Yuanyi grows in the shade of ancient walls or on roofs. It is harvested on the third day of the third lunar month and dried in the shade.
Su Gong stated: This is the green moss growing on the north side of old walls in the shade. The variety growing on stones is called Xixie, also known as Wujiu; the variety growing on roofs is called Wuyou.
Their shapes are similar, and their therapeutic effects are roughly the same. There are few walls in the Jiangnan region, so Tao Hongjing said: It is no longer used, and rarely seen among the common people.
Li Shizhen stated: This is the moss growing on brick walls and city ramparts. The variety growing on roof tiles is called Wuyou.
[Flavor and Properties] Sour, cold, non-toxic.
[Therapeutic Indications] Jaundice, irritability, cough with rebellious Qi, hematemesis and hemoptysis, sudden high fever in the intestines and stomach, trismus caused by wind-stroke, internal blockage from metal wounds (Jinchuang). Take after soaking in wine. Long-term use tonifies the middle Jiao, benefits Qi, promotes muscle growth, and improves complexion (from *Bencao Jing Shu*). Crush and take the juice to stop epistaxis. Burn to ash, mix with oil, and apply to treat scalds and burns (Li Shizhen).
(Recorded in the Lower Category of *Bencao Jing Shu* / *Shennong's Classic of Materia Medica by Various Authors*)
[Names] Wayi (from *Bencao Gangmu* / *Compendium of Materia Medica*), Watai (from *Jiayou Bencao* / *Jiayou Pharmacopoeia), Waxian (from *Bencao Gangmu* / *Compendium of Materia Medica*), Boxie.
[Collection and Explanation] *Bencao Jing Shu* states: Wuyou grows in the shaded areas of roofs. Harvest in August and September.
Tao Hongjing stated: This is the green moss growing on the roofs of old tiled houses. Peel it off for use.
Li Shizhen stated: The variety that grows several inches long is called Wasong (Dendrobium nobile / Roof Pine).
[Flavor and Properties] Sweet, cold, non-toxic.
[Therapeutic Indications] Floating heat in the skin, alternating chills and fever, promotes the Qi mechanism of the small intestine and bladder (from *Bencao Jing Shu*). Stops Xiao Ke (Wasting-Thirst syndrome) (Xu Zhicai). Pediatric epilepsy with heat, irritability and chest oppression due to seasonal epidemics (from *Kaibao Bencao*). Decoct water, add salt, and gargle to treat gum swelling and exposure caused by heat toxicity. Grind into powder, mix with fresh cold water, and take 2 qian to stop epistaxis (Li Shizhen).
[Innovation and Clarification] Li Shizhen stated: The indications recorded in *Bencao Jing Shu* are identical to those for Wujiu in *Shennong Bencao Jing* (*Classic of Divine Husbandman’s Materia Medica*), suggesting they belong to the same category, with similar properties and flavors not being far apart.
[Attached Formulas] One new formula.
Dog bite: Scrape green moss from old roof tiles and apply directly to the wound to stop bleeding immediately (from *Jingyan Fang* / *Experienced Prescriptions*).