\r胡桐泪\pd338.bmp\r
味咸、苦，大寒，无毒。主大毒热，心腹烦满，水和服之，取吐。又主牛马急黄黑汗，
水研三、二两灌之，立瘥。又为金银焊药。出肃州以西平泽及山谷中。形似黄矾而坚实。有
夹烂木者，云是
胡桐树滋沦入土石碱（音减）卤地作之。其树高硕，皮、叶似白杨、青桐、桑辈。故名胡桐
木，
堪器用。又名胡桐律。律、泪声讹也。《西域传》云∶胡桐似桑而曲
臣禹锡等谨按蜀本图经云∶凉州以西有之。初生似柳，大则似桑、桐之间。津下入地，
与土石相染，状如姜石，极咸苦，得水便消，若矾石、类石类也。冬采之。日华子云∶治风
牙齿痛。有二般∶木律不中入药用；石律形如小石片子，黄土色者为上。即中入齿药用，
兼杀火毒并面毒。
图经曰∶胡桐泪，出肃州以西平泽及山谷中，今西蕃亦有商人货之者。相传其木甚高硕，
皮似白杨、青桐辈。其药初生似柳，渐大则似桑、桐辈。其津液沦入地中，与大石相着，冬
月采得之，状如黄矾、姜石，味极咸苦，得水便消，如硝石也。古方∶稀用，今治口齿家为
最要之物。一名胡桐律。律、泪声近也。然有一种木律极相类，不堪用也。
海药∶谨按《岭表记》云∶出波斯国。是胡桐树脂也，名胡桐泪。又有石泪，在石上采
也。主风疳 齿牙疼痛，骨槽风劳，能软一切物。多服令人吐也。作律字非也。通典∶西戎
楼国，多出柽柳、胡桐、白草。白草，牛马所嗜也。胡桐亦似虫食其树而津下流出者，俗名
为胡桐泪，可以焊金银，俗讹呼泪为律。
味咸、苦，性大寒，无毒。主治严重的热毒，以及心腹部烦闷胀满，用水调和服用，可引发呕吐。又主治牛马患急黄病出现黑汗的症状，将药物用水研磨成三至二两的量灌服，病立愈。此外，它还可作为金银焊接的焊药。产于肃州以西的平泽及山谷中。形状类似黄矾但质地坚实。有的夹杂腐烂木材，说是胡桐树的汁液渗入含有碱（音减）和盐卤的土地中形成的。这种树高大粗壮，树皮、叶子像白杨、青桐、桑树之类。所以叫胡桐木，可用于制作器具。又名胡桐律。“律”与“泪”是声音讹传所致。《西域传》说：胡桐树像桑树但枝条弯曲。
臣禹锡等人谨按蜀本图经记载：凉州以西有出产。初生时像柳树，长大则介于桑树、桐树之间。树液流入地下，与土石混合，形状像姜石，味道极咸苦，遇水即溶，性质如同矾石，属于矿物类。冬季采集。日华子说：治疗风邪引起的牙齿疼痛。有两种：木律不适合入药；石律形状像小石块片，黄土色的为上品。适合入齿科药用，兼能清除火毒和面部毒素。
《图经》说：胡桐泪，产于肃州以西的平泽及山谷中，如今西蕃也有商人贩卖。相传这种树木非常高大粗壮，皮像白杨、青桐之类。药材初生时像柳，渐大则像桑、桐之类。其津液渗入地中，与大石接触，冬季采得，形状如黄矾、姜石，味道极咸苦，遇水即溶，像硝石一样。古方中很少使用，现在治疗口齿疾病是最为重要的药物。一名胡桐律。“律”、“泪”声音相近。然而有一种木律极相似，不堪使用。
海药：谨按《岭表记》说：产于波斯国。是胡桐树脂，名叫胡桐泪。又有石泪，在石头上采集。主治风疳引起的牙齿疼痛，骨槽风劳，能使一切物体变软。多服会让人呕吐。写作“律”字是错误的。
《通典》：西戎楼国，多出柽柳、胡桐、白草。白草，是牛马喜爱的食物。胡桐也像被虫蛀食的树而树液流出，俗名为胡桐泪，可以焊接金银，俗误称“泪”为“律”。
Hu Tong Lei (Poplar Tamarisk Gum Resin)
Salty and bitter in flavor, greatly cold in nature, non-toxic. It primarily treats severe toxic heat, and fullness and oppression with vexation in the heart and abdomen; when mixed with water and taken orally, it induces vomiting. It also treats cattle and horses suffering from acute jaundice with black sweat; grinding two to three liang of the drug in water and administering it orally leads to immediate recovery. Furthermore, it serves as a soldering agent for gold and silver. It is produced in the flat marshes and valleys west of Suzhou. Its shape resembles Huang Fan (Yellow Alum) but is solid and firm. Some pieces contain rotten wood, said to be formed when the sap of the Hu Tong tree seeps into alkaline (pronounced 'jian') and saline soils. The tree is tall and robust, with bark and leaves resembling those of white poplar, blue paulownia, or mulberry. Hence it is called Hu Tong Mu (Hu Poplar), which is suitable for making utensils. It is also known as Hu Tong Lv (Hu Poplar Law). "Lv" and "Lei" are phonetic corruptions of each other. The *Records of the Western Regions* states: Hu Tong resembles mulberry but has curved branches.
Chen Yuxi and others respectfully note according to the Shu Ben Tu Jing: It is found west of Liangzhou. When newly sprouting, it resembles willow; when mature, it is intermediate between mulberry and paulownia. The sap flows underground, mixing with earth and stones, taking the shape of Jiang Shi (Ginger Stone), with an extremely salty and bitter taste, dissolving upon contact with water, similar to alum minerals. It is harvested in winter. Ri Hua Zi states: It treats wind-induced toothache. There are two types: Mu Lv (Wood Law) is not suitable for medicinal use; Shi Lv (Stone Law) resembles small stone flakes, with those of yellow earth color being superior. It is suitable for dental medicinal use and can clear fire toxins and facial toxins.
The *Tu Jing* states: Hu Tong Lei is produced in the flat marshes and valleys west of Suzhou; currently, merchants from Xifan also trade it. It is passed down that the tree is very tall and robust, with bark resembling white poplar or blue paulownia. The drug initially resembles willow, gradually growing to resemble mulberry or paulownia. Its sap seeps into the ground, adhering to large stones, and is harvested in winter. It resembles Huang Fan or Jiang Shi, with an extremely salty and bitter taste, dissolving in water like Xiao Shi (Niter). In ancient prescriptions, it was rarely used; now it is the most important substance for treating oral and dental conditions. Another name is Hu Tong Lv. "Lv" and "Lei" have similar pronunciations. However, there is a type of Mu Lv that is extremely similar but unsuitable for use.
Maritime Medicines: Respectfully noting the *Ling Biao Ji*: It originates from Persia. It is the resin of the Hu Tong tree, named Hu Tong Lei. There is also Shi Lei (Stone Tear), collected from rocks. It treats wind-related gan disease causing toothache, and bone cavity wind consumption, capable of softening all substances. Excessive intake causes vomiting. Writing it as "Lv" is incorrect.
Tong Dian: The Lou State of the Western Barbarians produces much Cheng Liu (Tamarisk), Hu Tong, and Bai Cao (White Grass). Bai Cao is favored by cattle and horses. Hu Tong also resembles trees eaten by insects with sap flowing out, commonly known as Hu Tong Lei, which can be used to solder gold and silver; colloquially, "Lei" is erroneously called "Lv".