The first three genera are Australian systems, and the last three genera are Asian systems (citrus fruit trees). In fact, the latter three genera have great economic value and are really used for fruit tree cultivation or rootstock utilization.
Fructus Aurantii: 1, Fumin Fructus Aurantii; 2. Fructus Aurantii: (1) Common Fructus Aurantii (2) Variegated Fructus Aurantii (3) Natural hybridization: ① orange ② pomelo.
Kumquat genus: kumquat, golden bean, kumquat with long leaves, luofu, rib, golden bullet and longevity kumquat.
Citrus is divided into Citron, Pomelo, Orange, Wide Peel Orange, Big Winged Orange and Yichang Orange.
Schwinger divided citrus into two subgenus, namely subgenus Citrus and subgenus Papeda.
Subgenera of Citrus: Citrus, Pomelo, Orange and Wide-skinned Citrus; Subgenus of Dawing Orange: Dawing Orange and Yichang Orange.
Citrus area: citrus, citrus, bergamot, lemon, lime, Beijing lemon, lime.
Grapefruit area: grapefruit and grapefruit (also called grapefruit)
Orange area: 1, sweet orange: common sweet orange, navel orange, blood orange and acid-free sweet orange; 2. Lime (alias: bitter orange, green orange, spring is not old, and round)
Wide-peel citrus area: orange group, orange/orange group,
Citrus: 1, honey tube 2, sand orange 3, European orange 4, banana orange 5, satsuma orange 6, wrinkled orange.
Orange/orange group: 1, zhuju No.2, chazhi orange No.3, ruju No.4, jieju No.5, guangju No.6, hanju No.7, tuju No.8, ponkan No.9, Hong Ju 10, and sour orange.
Large-winged orange area: 1, Honghe orange 2, chickpea 3, large-winged thick-skinned orange.
Yichang orange area: 1, Yichang orange 2, Xiang orange