1. The varieties of oranges in Hunan Province are: tangerine, south orange, _ orange, rock sugar orange, sweet orange and Ji orange.

2. huangyan tangerine: huangyan tangerine, a special product of huangyan district, Taizhou city, Zhejiang province, and a symbol product of chinese national geography. Huangyan tangerine is a kind of wide-skinned tangerine with orange-yellow peel, kidney-shaped, hollow central column, soft pulp and slag, which is sweet and sour. The fruit of this plant is oblate, with thin and smooth skin, juicy and fragrant. Early orange fruit is oblate, and _ orange fruit is oblate or conical, with slightly rough and crisp skin, aroma and storage resistance; Milk orange fruit is oblate, juice cells are orange-yellow, and its flavor is sweet and fragrant. The fruit of Miyagawa Satsuma Mandarin is oblate, thin-skinned and sweet.

3. Linhai tangerine: There are 18, mu of citrus bases in Linhai, Zhejiang Province. Linhai tangerine has neat fruit shape, bright color, crisp meat and rich flavor. The city's annual output of tangerines is 23, tons, with an annual output value of 38 million yuan. At present, the orange variety planted in Linhai tangerine is seedless tangerine.

4. Nanfeng tangerine: Nanfeng tangerine is rich in more than 4 kinds of vitamins and trace elements such as amino acids and selenium, and has been a royal tribute since the Tang Dynasty. Nanfeng Tangerine is a national geographical indication product, a well-known trademark in China, a famous agricultural product in China and a green food, with an annual output of 3 billion Jin, which is sold well in China and exported to more than 4 countries and regions. The planting scale and output of a single variety are the highest in the world, and the export volume and countries rank first in China. It is the first "1 billion" agricultural industry in Fuzhou, Jiangxi Province.