Name: Picea crassifolia Category: arbor

Alias: Pinaceae Name: Pinaceae

Latin scientific name: Picea crassifolia.

Garden use:

Suitable for single and group planting in gardens, often used as shade trees and landscape trees.

Distribution of origin:

China, Qinghai, Gansu, Ningxia and Inner Mongolia.

Name: Picea koraiensis Category: Arbor

Alias: black pine, Picea koraiensis family name: Pinaceae

Latin name: Picea koraiensis

Ecological habits:

Picea koraiensis is a slightly negative tree species, which is resistant to full light, humidity and cold, with slightly shallow root system and developed lateral roots. In addition to dense hairs on the branches and narrow and blunt fruit scales, Dailing Cloud is the same as Picea koraiensis and can be distinguished from Picea koraiensis. Distributed in Xiaoxing 'anling (Dailing) of Heilongjiang Province.

Morphological characteristics:

Evergreen trees, up to 35 meters high, DBH 80 cm, with green crowns. The big branches extend or spread obliquely, and the branchlets have obvious wooden leaf pillows; Annual branchlets are reddish-brown or yellowish-brown. The flowering period is in late May and late September. In late June, 65438+1October, the seed scales are cracked and the seeds are scattered.

Breeding: seed breeding

Garden use:

Picea koraiensis is evergreen in winter and summer, with beautiful tree posture and easy reproduction. It has been widely used in street trees and landscaping, and can also be used for tree species decoration in street green spaces and avenues. Picea koraiensis is one of the main landscaping trees in Northeast China. The most suitable environment for growth is the place with high air humidity, good drainage and thick soil layer.

Distribution of origin:

It is mainly distributed in Xiaoxing 'anling, Wandashan, Zhangguangcailing and Changbai Mountain forest areas in Heilongjiang and Jilin provinces in Northeast China. There is also a small distribution along the river valley in the east and north of Daxing 'anling.

Name: Abies baishanzu Species: arbor

Alias: (None) Family Name: Pinaceae

Latin scientific name: Abies baishanzu

Ecological habits:

Baishanzu Abies is located in the eastern subtropical mountainous area, and its climate is characterized by low temperature, high humidity, heavy precipitation and heavy clouds. The annual average temperature is 8-9℃, and the extreme minimum temperature is-15℃; The annual precipitation is 2300mm and the relative humidity is 9.2%. The soil-forming parent materials are mostly weathered tuff and rhyolite, and the soil is yellow brown soil, acidic, with pH value of 4.5 and organic matter content of 3.5%. The natural vegetation is deciduous broad-leaved forest, the associated plants are mainly beech with bright leaves, and the undergrowth plants are baishanzu Yushan Bamboo, baishanzu Yushan Bamboo and Sinocalamus affinis. This young tree is extremely shade-tolerant, but it does not grow well. Big branches often bend on smooth surfaces. The fruiting period is 4-5 years, most characters are stunted, flowering in May, and 1 1 monthly fruit is mature.

Morphological characteristics:

Evergreen trees, spreading branches, whorled, with a height of17m and a DBH of 80cm; Bark grayish yellow, irregular block cracking; Branchlets are opposite, 1 year branches are light yellow or grayish yellow, and there is no hair or sparse hair in the ditch; Winter buds are oval, resinous, and the bud scales are yellowish brown and persistent. The leaves are arranged in a spiral shape, extending radially or irregularly in two rows above the branchlets. The leaves in the center are shorter, and the leaves below the branchlets are comb-shaped, linear, 1-4.2 cm long and 2.5-3.5 mm wide, with a concave top, two white stomata bands and two resin channels below, and the edges are or near the edges. Monoecious, cones are solitary in the axils of last year's branches; Male cones droop; Female cones droop; The female cone is erect, with many spiral scales and bracts, the bracts are larger, and there are two ovules at the ventral base of each bead scale. The cones are upright, cylindrical, with short stalks, 7- 12 cm long and 3.5-4 cm in diameter, and light brown or light brown when mature; The seed scale is a quadrilateral with a length of 1.8-2.5 cm and a width of 2.5-3 cm. Bract scales are narrow, with a length of1.6-2.3cm, central contraction, round upper part, 7-8mm wide, exposed top, downward bending and short spines. After maturity, seed scales and bract scales fall off from the persistent central axis; The seed is inverted triangle, about 65438±0cm long, and the seed wing membrane is wide. The seed wing is an inverted triangle, with a length of1.6-2.2cm and a width of 9-12mm. ? Abies baishanzu is a unique ancient relict plant in China, and it is a rare tree species of Abies only existing in Jiangsu, Zhejiang, Anhui, Fujian and other provinces. It is of great academic significance for studying flora and climate change. ?

Breeding and cultivation:

Due to the lack of provenance, the survival rate of cutting propagation in qingyuan county Forestry Department is very low. After that, Abies japonica was selected as the rootstock of branch grafting, and the pith-core layer docking method, split grafting method and docking method were all successful. Hangzhou Botanical Garden also carried out grafting propagation and preserved some seedlings.

Garden use:

The endangered species Abies baishanzu is a unique ancient relict plant in China, and it is a rare species of Abies only existing in Jiangsu, Zhejiang, Anhui, Fujian and other provinces. It is of great academic significance for studying flora and climate change.

Distribution of origin:

It is only distributed in the forests on the south slope of baishanzu, qingyuan county, southern Zhejiang, with an altitude of about1.700m..

Name: Chinese fir category: arbor

Alias: Abies liaodong, Abies Sha Song, Pinaceae: Pinaceae.

Latin scientific name: Sha Song

Ecological habits:

Shading trees have strong shade tolerance and like to grow on shady slopes with thick soil layers. Not resistant to high temperature and dryness, with shallow roots. Poor smoke resistance. Not resistant to pruning.

Morphological characteristics:

Evergreen trees, up to 30 meters high, about 65438+ meters in DBH. The crown of the tree is wide and conical, and when it gets old, it becomes a wide oval umbrella. The bark of small trees is light brown. Not cracked; The aged bark is grayish brown with irregular scaly cracks. The big branches spread out, and the annual branches are yellow-brown, hairless and shiny. 2 ~ 3 years old branches are gray, grayish yellow or grayish brown. Leaf strip The leaf margin does not roll back downwards, with a length of 2-4 cm and a width of1.5-2.5 mm, with a sharp or tapering apex and no notch, and the leaf surface is dark green and shiny. There are two white stomatal bands on the back of leaves, and there are often 2 ~ 5 inconspicuous stomatal lines at the top of the front of fruit branches. The cone is cylindrical, 6 ~ 14 cm long, green before maturity, yellowish brown or light brown when mature, and nearly sessile. Bract scales short, not exposed, apex spiny, pointed.

Garden use:

Suitable for planting in scenic spots, parks, gardens and streets.

Distribution of origin:

Originated in China, eastern Liaoning, eastern Jilin and southeastern Heilongjiang.