Nanfang Caomu Zhuang
The (c. 304 CE) Nanfang caomu zhuang (南方草木狀 Plants of the Southern Regions), attributed to the Western Jin dynasty scholar and botanist Ji Han (嵇含, 263-307), is a Flora describing the plants of Nanyue and Jiaozhi, present-day South China and northern Vietnam. The Nanfang caomu zhuang is the oldest work extant in any language on subtropical botany. The book contains the first descriptions of several economic plants, for instance jasmine and black pepper, as well as the earliest accounts of some agricultural techniques such as biological pest control (using "citrus ants" to protect orange crops), and the cultivation of vegetables on floating gardens (centuries before the earliest recorded Mesoamerican chinampa).
Since 1273, when the Nanfang caomu zhuang was first printed in the Song dynasty, it was frequently quoted by Chinese authors, both in literature and technical books on horticulture, agriculture, and Chinese herbology. Since the 19th century (e.g., Hirth 1865 and Bretschneider 1870), many Western sinologists, botanists, and historians of plant cultivation have studied it.
The Nanfang caomu zhuang author Ji Han was "one of the greatest of all Chinese botanists" (Needham, Ho, and Lu 1976: 80).
The primary source of information about Ji Han's life is the Book of Jin biography of his uncle Ji Shao (嵇紹), who was the son of the poet-musician Ji Kang (23–262), one of the Seven Worthies of the Bamboo Grove. Ji Han was born in 263 in Zhixian (銍縣, in present-day Anhui province). His courtesy name was Jun Dao (君道 "Gentleman's Way"), and his pen name Boqiuzi (亳丘子 "Master of Boqiu") refers to his residence at Boqiu (present-day Henan) near the capital Luoyang. He served as a scholar-administrator and poet on the staff of several princes.
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