Timeline of United States discoveries
The Red Delicious is a clone of apple cultigen, now comprising more than 50 cultivars. The Red Delicious apple was discovered in 1875 by Jesse Hiatt on his farm in Peru, Iowa. Believing that the seedling was nothing more than nuisance. After chopping down the tree three times, Hiatt decided to let the tree grow and eventually, it produced an unknown and new harvest of red apples. Hiatt would eventually sell the rights to this type of apple to the Stark Brothers Nurseries and Orchards who renamed it the Red Delicious.
Nanfang Caomu Zhuang
The "Nanfang caomu zhuang" has two entries (62 and 63) for "Citrus" trees: "Jú" (橘 "Citrus × sinensis", Sweet Orange) and "Gān" (柑 "Citrus reticulata", Mandarin Orange).
The Chü has white flowers and reddish fruits which have fragrant petals and a delicious taste. Since the time of Wu Ti of Han, there was a Minister of Oranges with a salary of two hundred "shih" [of rice], responsible for presenting oranges to the royal court. In the Huang-wu period of Wu (A.D. 222-229), Shih Hsieh 士燮, the Governor of Chiao-chih, once presented an orange specimen with seventeen fruits to one stalk, considered as a symbol of auspiciousness. The entire court entourage presented their congratulations. (62, tr. Li 1979: 118) 
Shi Xie (137-226) was a Han dynasty Administrator of Jiaozhi commandery (present-day northern Vietnam). This story about Shi Xie sending as tribute a sweet orange plant with seventeen fruits to Sun Quan (r. 229-252), the founder of the Eastern Wu dynasty, is not recorded elsewhere, and Ma (1978: 243) believes it is a forgery based on the (492-493) "Songshu" history record that in 33I Yu Liang sent a sweet orange plant with twelve fruits to the Jin dynasty court.