2. Oranges are hybrids of oranges and grapefruit. The fruit is round or rectangular, the peel is smooth and thin, and the capsule is compact, so it is not easy to peel.
3. Citrus and orange belong to Rutaceae, and their fruit structures are basically similar. The pericarp is divided into three layers: the exocarp is tough and has many oil pockets. People should peel off this skin before eating. After peeling off the exocarp, there will be many spongy white material, that is, mesocarp. The mesocarp of oranges is very thick, while the mesocarp of oranges has many veined orange nets. Below the mesocarp or orange complex is the edible gravy pulp, namely the endocarp, which contains more or less seeds.
4. Citrus has rough surface, loose exocarp and easy peeling of mesocarp and endocarp. The orange skin is smooth and tightly wrapped, so it is difficult to peel it off from the fruit inside. When eating, it can only be peeled with the help of a knife. The pulp petals of oranges are closely combined and difficult to separate, while the pulp petals of oranges are very easy to separate. Judging from the appearance color of pulp petals, oranges are slightly orange-red, while oranges are lighter in color. From the observation and comparison of tree morphology, the leaf shape of citrus is larger than that of citrus, and the petiole of citrus has narrow wings, but citrus does not. When eating, oranges can also be clearly distinguished from oranges. Oranges are full of water, but their sweetness is weak, while oranges are full of sweetness, leaving fragrance between their teeth for a long time, so oranges are generally more expensive.
5. Oranges: Oranges are ripe fruits of many kinds of oranges in Rutaceae, such as Fuju or Juju. There are many kinds, including Babu Orange, Money Orange, Sweet Orange, Lime, Miyagawa Orange, Xinjin Orange, Zhangwei Orange, Wenzhou Orange, Sichuan Orange and so on. The fruit is small, usually oblate, and the peel is orange red, vermilion or orange yellow. The pericarp is thin and loose, the sponge layer is thin, tough and easy to peel, and there are 7 to 1 1 cysts. It tastes sweet or sour, and the seeds are thin and not resistant to storage.