1、 Single fruit

The fruit developed from only one pistil in a flower is called single fruit, which is divided into fleshy fruit and dry fruit

1. Flesh fruit: flesh fruit is divided into berry, stone fruit, orange fruit, pear fruit and bottle gourd fruit. Among them, the characteristic of berry is that the exocarp is thin, the mesocarp and endocarp are fleshy, and the fruit is full of juice, such as honeysuckle, grape, etc; Drupe is characterized by thin exocarp, fleshy mesocarp and hard endocarp, such as peach, plum, etc; Citrus fruit is characterized by leathery exocarp, loose mesocarp and membranous endocarp, which is a unique structure of Rutaceae

2. Dry fruit: dry fruit refers to that the peel is dry after the fruit is mature, and the dry fruit is divided into split fruit and non split fruit. The split fruit includes pod, follicle, horn and capsule, and the non split fruit includes split fruit, nut, Samara, caryopsis, achene, etc

2、 Aggregate fruit

Several free carpel pistils in the flower gather on the receptacle, and the fruit developed from it is called aggregate fruit, which is one flower and many fruits. Aggregate fruit can be divided into aggregate follicle, aggregate achene, aggregate nut and aggregate stone fruit, among which the four plants represented respectively are star anise, strawberry, lotus and Rubus

3、 Fig

The fruit developed from the whole inflorescence, also known as the poly flower fruit, has many flowers and fruits, among which the representative plants are fig, mulberry and pineapple