（《拾遗》）
【释名、集解】 曰∶越王余算生南海水中，如竹算子，长尺许。刘敬叔《异苑》云∶
昔晋安越王渡南海，将黑角白骨作算筹，其有余者，弃于水中而生此。故叶白者似骨，黑者
似角，遂名之。相传可食。
【气味】咸，温，无毒。
【主治】水肿浮气结聚，宿滞不消，腹中虚鸣，并煮服之（李 ）。
【附录】沙箸
时珍曰∶按∶刘恂《岭表录》异有沙箸，似是余算之类，今附于此。云∶海岸沙中生沙
箸，春吐苗，其心若骨，白而且劲，可为酒筹。凡欲采者，须轻步向前拔之。不然，闻行声
遽缩入沙中，不可得也。
（《日华》）
【集解】弘景曰∶石帆状如柏，水松状如松。
藏器曰∶石帆生海底，高尺余。根如漆色，至梢上渐软，作交罗纹。
大明曰∶石帆紫色，梗大者如箸，见风渐硬，色如漆，人以饰作珊瑚装。
颂曰∶左思《吴都赋》∶草则石帆、水松。刘渊林注云∶石帆生海屿石上，草类也。无
叶，高尺许，其花离楼相贯连。若死则浮水中，人于海边得之，稀有见其生者。
【气味】甜、咸，平，无毒。
【主治】石淋（弘景）。煮汁服，主妇人血结月闭（藏器）。
（《纲目》）
【集解】弘景曰∶水松状如松。
颂曰∶出南海及交趾，生海水中。
【气味】甘、咸，寒，无毒。
【主治】溪毒（弘景）。水肿，催生（藏器）。
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Names and Explanation] Li states: Yuewang Yusuan grows in the South Sea, resembling bamboo counting rods (suanzi), approximately one chi in length. Liu Jingshu's *Yi Yuan* records: "In ancient times, when the King of Yue from Jin'an crossed the South Sea, he used black horn and white bone to make counting rods. The surplus pieces were discarded into the water and grew into this plant. Hence, the white parts resemble bone, and the black parts resemble horn, thus giving it its name. It is said to be edible."
[Properties and Flavor] Salty, warm, non-toxic.
[Indications] Edema, accumulation of floating qi, stagnation of old food not digesting, and hollow sounds in the abdomen; all treated by boiling and drinking the decoction (Li).
[Appendix] Shazhu (Sand Chopsticks)
Shizhen says: According to Liu Xun's *Lingbiao Lu*, there is a strange plant called Shazhu, which appears similar to Yuesuan, so it is appended here. It states: "Shazhu grows in the sand on the coast, sprouting shoots in spring. Its core resembles bone, being white and tough, suitable for use as wine counters. To harvest it, one must approach lightly and pull it out. Otherwise, upon hearing footsteps, it will quickly retract into the sand, making it impossible to obtain."
(From *Rihua Bencao*)
[Explanation] Hongjing states: Shifan resembles cypress; Shuisong resembles pine.
Cangqi states: Shifan grows at the bottom of the sea, over one chi high. The roots are lacquer-colored, becoming softer towards the tips, forming an interlaced pattern.
Daming states: Shifan is purple; thick stems are like chopsticks, hardening upon exposure to wind, with a color like lacquer. People use it to decorate imitations of coral.
Song states: Zuo Si's *Wu Du Fu* mentions: "Among grasses, there are Shifan and Shuisong." Liu Yuanlin's annotation says: "Shifan grows on rocks in sea islands, belonging to the grass category. It has no leaves, stands about one chi high, and its flowers are intricately intertwined. If dead, it floats in the water. People find it on the seashore; few have seen it growing alive."
[Properties and Flavor] Sweet, salty, neutral, non-toxic.
[Indications] Shilin (Stone strangury) (Hongjing). Boiled juice treats blood stasis and amenorrhea in women (Cangqi).
(From *Bencao Gangmu*)
[Explanation] Hongjing states: Shuisong resembles pine.
Song states: Produced in the South Sea and Jiaozhi, growing in seawater.
[Properties and Flavor] Sweet, salty, cold, non-toxic.
[Indications] Xidu (Stream toxicity) (Hongjing). Edema, promoting childbirth (Cangqi).