There are over 100 varieties of lychees, and new varieties are constantly emerging every year.
Now is the season for officially enjoying lychees. A large quantity of lychees are available on the market. Supermarkets, fruit stores, and street vendors are all shouting about the fresh lychees, with enticing phrases like "No need to pay if it's not sweet" and prices varying from high to low. 
Litchi (scientific name: Litchi chinensis Sonn.) belongs to the Sapindaceae family and the Litchi genus. It is a evergreen tree, approximately 10 meters tall. The fruit skin has scaly protrusions, is bright red and purplish red. When fully ripe, it turns bright red; the seeds are all covered by a fleshy false seed coat. The flowering period is in spring and the fruiting period is in summer. When fresh, the fruit flesh is translucent and gelatinous, with a fragrant and delicious taste, but it is not suitable for storage. 
It is distributed in southwestern China, including Yunnan, Guizhou, Sichuan and Chongqing, as well as southern regions such as Guangxi, Guangdong and Hainan, and the southeastern regions like Fujian, Zhejiang and Taiwan. It is also cultivated in the southeastern part of Asia. There are records of its introduction to Africa, America and Oceania. Lychee is known as one of the "Four Major Fruits of the South" along with bananas, pineapples and longans. 
Litchi is sweet, sour in taste, and warm in nature. It enters the meridians of the heart, spleen and liver. It can stop hiccups and diarrhea. It is an excellent food therapy choice for those with stubborn hiccups and nocturnal diarrhea. At the same time, it has the effects of nourishing the brain, promoting fitness, stimulating the appetite and benefiting the spleen. Due to its hot nature, excessive consumption can easily lead to excessive heat.

Morphological characteristics Announcement

The crown is round-shaped, the main trunk is gray-brown and relatively smooth. The branches are sparse and long, with an upward growth tendency. The one-year-old branches are yellowish-brown with gray-white tints, having dense lenticels, nearly circular in shape. The branches are relatively brittle and prone to breaking. The leaf stalks are short, thin, and slightly flattened and round, measuring 8.0 centimeters in length. The upper part is dark red-brown with a hint of light gray, the lower part is brown-green, and the leaf axils are relatively small. There are 2 to 3 pairs of small leaves, which are opposite or nearly opposite. The leaves are long elliptical, with short tips, the base is broad and wedge-shaped, measuring 7 to 9 centimeters in length and 2.5 to 3.8 centimeters in width. The leaf margins are inwardly curled or slightly wavy, with fine and slightly undulating veins; the main veins are fine, the lateral veins are sparse and not obvious; the leaf is relatively thick, light green and lustrous; the leaf stalks are flat, with shallow grooves, upper side is reddish-brown, and the lower side is green-brown.

The flower spike is 23.0 centimeters long, the flower branches are thin and sparse, scattered, yellow-green in color, with sparse hairs, and the flower axis has indistinct lenticels. The male flowers are large, measuring 1.1 centimeters in height and 1.0 centimeter in diameter. The flower stalk is 4.0 millimeters long, the sepals are yellow-green, 5-lobed, with short and sparse brown hairs. There are 6 to 8 stamens, usually 7, with flower filaments 4.6 millimeters long, the hairs are short and dense, the anthers are large, the flower disk is 2 to 4 millimeters in diameter, pale yellow; the female flower is reduced and only traces remain; the longitudinal diameter is 8.7 millimeters, the transverse diameter is 6.7 millimeters, the flower stalk is 4.0 millimeters, the ovary is yellow-green, the stigma is short and slightly divided, with sparse and short hairs, and there are 6 degenerated stamens. 

The fruit is medium-sized, averaging about 17 grams (long diameter 2.9 - 3.7 centimeters, transverse diameter 3.2 - 3.4 centimeters); it is round or nearly round, with a flat shoulder and a rounded top; the fruit skin is light red, thin and brittle; the lobes are prominent and in an irregular cone shape, becoming finer and denser near the top and the base of the fruit; the suture line is distinct, deep and narrow, and concave; the fruit stalk diameter is 2.1 millimeters; the fruit base diameter is 3.3 millimeters; the seed handle is small, 4.6 millimeters long and 3.5 millimeters wide; the fruit flesh is milky white, 1.1 centimeters thick. The full seeds are long elliptical, slightly flattened, with a longitudinal diameter of 1.2 - 1.8 centimeters and a transverse diameter of 0.6 - 0.9 centimeters, the longitudinal diameter of the seed core is 1.4 centimeters, the transverse diameter is 0.9 centimeters, weighing 0.5 grams, the seed coat is reddish-brown and lustrous. With many seed cores