The fruit is a unique organ of the angiosperm, which generally develops with an ovary. Plants are developed after flowering pollination and fertilization, and the standard fruits include the peel and seed, which is developed by the ovary wall and the seed is developed by ovules. Most of the fruit that people eat is the peel part of the fruit, which is succulent and nutritious. The common part of the fruit is not the peel. Let me talk about these special fruits.
1. Strawberries
Strawberries are common fruits, the fruit of the genus Strawberry in the rosaceae family, which is a false fruit.
It appears spherical or tapered, red or white, and succulent, and develops with most of the detached pistils of a flower clustered on the fleshy flower holder. The edible part is a fleshy flower holder, and on its surface there are small particles like sesame seeds, which are real fruits, which belong to small skinny fruits.
2, apples, pears, hawthorn, loquat
These fruits appear to be large, spherical, tapered, or ovate, with depressions at the top and sepals in or without.
It belongs to the apple subfamily of the Rosaceae family, and its fruit type is pear fruit, which belongs to the pseudo-fruit. Their fruit has 5 carpels, lower ovary and flower tubes that develop together. The fleshy edible part is developed from the flower tube and the middle peel together, and most of the pulp does not develop from the ovary.
3. Citrus
Including oranges, grapefruit, citrus, lemons, etc., the fruit type belongs to the citrus fruit, which is a fleshy fruit unique to citrus plants.
Belonging to the family Rubiaceae, their fruits are developed from the upper ovary of the central axial placenta of the compound pistil. It looks like the outer peel is thick, the surface leather can not be eaten, the middle peel is loosely reticulated, the inner peel is membranous, divided into several petals or chambers, and the room is filled with long filamentous cells containing juicy, and some places are called juicy hair follicles, which is the edible part.
4, pineapple (pineapple)
Pineapple is a southern fruit of our country, looks like a pine tower, belongs to the polyflora fruit, belongs to the fruit of bromeliads.
The edible part is the inflorescence axis with enlarged flesh. Each small lattice on the surface is its true fruit.
5. Figs
Its fruit type belongs to the fig fruit, and some places are called polyflora fruit, compound fruit, cryptoflagell fruit, etc., in fact, the real fruit is a thin fruit. Fig figs are developed by all the flowers on one inflorescence, including the inflorescence axis. The essence of the edible part is the flower tray.
6, turn dates
The fruit of the jujube looks to be crooked and very special. It is the fruit of the genus Lycaenidae , and is eaten in part by enlarged fleshy stalks and inflection shafts.
Its real fruit is a spherical berry-shaped stone fruit that grows at the top.
7, pomegranate
Pomegranates are familiar to everyone, but the edible part is not the peel, but the fleshy and juicy outer seed coat. It belongs to the pomegranate family, the berry, the outer fruit leather is inedible, and the inner seed coat of the seed is woody, nor can it be eaten.
8, watermelon
People eat the red or yellow "flesh" part of the watermelon, which is indeed the fetal seat of its fruit, and the outer peel cannot be eaten.
Of course there are many fruit edible parts that are not peeled, and if you are interested, contain paid consultations.