Lǐ Qiú 李璆, zì Yìngxián 應賢 (fl. mid-late 13th c.). Late-Southern-Sòng official posted to Lǐngnán 嶺南. Co-author with 張致遠 of the Lǐngnán wèishēng fāng 嶺南衛生方 (KR3ed031), the earliest extant Chinese tropical-medicine specialty treatise. His historical record outside this work is sparse; not in CBDB. The work’s preservation in Japan and re-edition by Edo-period Japanese physicians is the principal reason that even Lǐ Qiú’s zì “Yìngxián” is documented. Sòng prefectural records identify a Lǐ Qiú as senior official at Guǎngzhōu prefecture in the Xiánchún era (1265–1274), consistent with the Lǐngnán wèishēng fāng attribution.