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Initially, many citrus types were identified and named by individual taxonomists, resulting in a large number of identified species: 870 by a 1969 count. [18] Some order was brought to citrus taxonomy by two unified classification schemes, those of Chōzaburō Tanaka and Walter Tennyson Swingle, that can be viewed as extreme alternative visions of the genus.
Citrus is a genus of flowering trees and shrubs in the family Rutaceae. Plants in the genus produce citrus fruits, including important crops such as oranges, mandarins, lemons, grapefruits, pomelos, and limes. Citrus is native to South Asia, East Asia, Southeast Asia, Melanesia, and Australia. Indigenous people in these areas have used and ...
Chōzaburō Tanaka classified the Dancy in Citrus tangerina; he thought it was similar or identical to the obenimikan of Japan, and close to the Keonla and Ladu mandarins of India. [2] Under the Swingle classification, the Dancy is classed in Citrus reticulata, the mandarin group.
The sour orange (Citrus x aurantium) derives from a direct cross between a pure mandarin and a pomelo [11] Lemon (Citrus x limon), a sour orange × citron hybrid. [15] Lime (Citrus x latifolia), a lemon × Key lime cross [15] Bergamot orange (Citrus x bergamia), a lemon × sour orange backcross [15]
The Rutaceae (/ r uː ˈ t eɪ s i ˌ aɪ,-s iː ˌ iː /) is a family, commonly known as the rue [3] or citrus family, [4] of flowering plants, usually placed in the order Sapindales. Species of the family generally have flowers that divide into four or five parts, usually with strong scents.
Citrus bergamia: Citrus bergamia, the bergamot orange, is a fragrant citrus fruit the size of an orange, with a yellow or green colour similar to a lime, depending on ripeness. Genetic research into the ancestral origins of extant citrus cultivars found bergamot orange to be a probable hybrid of lemon and bitter orange. Citron: Citrus medica
Citrus medica is a slow-growing shrub or small tree that reaches a height of about 8 to 15 ft (2 to 5 m). It has irregular straggling branches and stiff twigs and long spines at the leaf axils . The evergreen leaves are green and lemon-scented with slightly serrate edges, ovate-lanceolate or ovate elliptic 2.5 to 7.0 inches long.
Citrus × yuge-hyokan Yu.Tanaka The bitter orange , sour orange , Seville orange , bigarade orange , or marmalade orange is the hybrid citrus tree species Citrus × aurantium , and its fruit. It is native to Southeast Asia and has been spread by humans to many parts of the world.