Liú Shūyuān 劉叔淵 (late Yuán / early Míng), a senior disciple (gāodì 高弟) of 朱震亨 Zhū Zhènhēng (1281–1358) and the father of the early-Míng physician 劉純 Liú Chún (c. 1340 – 1412). Known almost exclusively through Liú Chún’s filial preface to the Yījīng xiǎoxué (KR3er051), in which Shūyuān is credited with the personal transmission of the Dānxī 丹溪 doctrines to his son. No independently transmitted writings survive. Not in CBDB.