1, Myrica rubra: evergreen trees with a height of15m or more and a DBH of 60cm or more; Bark gray, longitudinal shallow crack when old; The crown is spherical. Branchlets and buds are glabrous, lenticels are usually few and inconspicuous, and only round and peltate glands are attached when they are young. Leaves leathery, hairless, surviving to fall off in 2 years, usually densely on the upper part of branchlets; Most of them are oblong or wedge-lanceolate, with a length of more than 16 cm, a tapering or acute tip, and sparse sharp serrations above the middle of the edge.
The drupe is spherical with papillae on the outer surface, with a diameter of 1- 1.5 cm, and the cultivated variety can reach about 3 cm. Exocarp is fleshy, juicy, resinous, sweet and sour, and dark red or purplish red at maturity. The nucleus is usually oblong or oval, slightly flat, with a length of 1- 1.5 cm and a width of 1- 1.2 cm. Endocarp is very hard and woody. It blooms in April and matures in June and July.
2. Plum blossom: Dipterocarpaceae, a tree of plum blossom, is about 20 meters high. Branchlets are stellate tomentose. Leaf blade leathery, oblong to oblong-lanceolate, apex acuminate or mucronate, base rounded or wedge-shaped, both sides protruding, reticulate veins obvious, petiole densely covered with grayish yellow short fluff. Panicle terminal or axillary.
Calyx lobes valvate, ovate-lanceolate or oblong, densely covered with stellate hairs or scaly hairs on both sides; Petals are white, sometimes pale yellow or reddish, fragrant, oblong or linear spoon-shaped, filaments are short, anthers are oblong, ovaries are spherical, densely covered with short villi, and fruits are spherical; 12- 1 flowering, April-May fruiting.
Second, the distribution is different.
1, Myrica rubra: Myrica rubra is distributed in China, including Yunnan, Guizhou, Zhejiang, Jiangsu, Fujian, Guangdong, Hunan, Guangxi, Jiangxi, Sichuan, Anhui and Taiwan Province provinces. There is a small amount of cultivation abroad, such as Japan and South Korea, and also distributed in Southeast Asian countries, such as India, Myanmar, Vietnam and the Philippines.
2. Li: Distributed in Hainan, China. Vietnam, Thailand, Philippines and Indonesia are all distributed. The type specimens were collected from the Philippines.
Third, the growth environment is different.
1, Myrica rubra: Myrica rubra, which likes acidic soil, is native to hillside or valley forests at an altitude of 125- 1500m in temperate and subtropical humid climate in China. It is mainly distributed in the south of the Yangtze River basin and the north of Hainan Island, that is, between 20 degrees north latitude and 3 1 degree, with citrus, loquat and loquat.
2. Plum Blossom: It is suitable for growing in hills and sloping forests below 700 meters above sea level.
Plum blossom likes sunshine and warm and humid climate, which requires an annual average temperature of about 65438 06℃, shallow roots and poor drought and cold resistance. However, the low temperature below -8℃ at flowering stage or below -4℃ at young fruit stage will cause freezing damage, such as falling flowers and fruits and reducing production. The requirements for soil are not strict, but the demand for potash fertilizer is large. Long life, it grows best on sandy loam with good drainage, fertility, leeward and abundant sunshine, and is suitable for hilly areas with an altitude below 500 meters and a slope below 25 degrees.
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