Abies beshanzuensis (lat.) - an evergreen monoecious tree ; species of the genus Pine family of the Pine ( Pinaceae ).
| Abies beshanzuensis |
| Scientific classification |
|---|
| The kingdom : | Green plants |
|
| International Scientific Name |
|---|
Abies beshanzuensis MHWu (1976) |
| Area |
|---|
|
| Security status |
|---|
Endangered SpeciesIUCN 3.1 Critically Endangered : 32318 |
|
Content
Endemic of the Chinese province of Zhejiang , where it occurs on Baishan-zu mountain at 27 ° 45'N, 119 ° 11'E. Known for several adult individuals in the wild, without natural regeneration, in a degraded for angiosperm forest. According to a report by Dudley (1988), in 1987 only three separate trees from the population opened in 1963, consisting of 7 trees, of which four were flowering and with cones at that time, remained. The population has declined significantly in size after the floods and subsequent landslides in the area.
It grows on a medium height mountain in the southeastern marine part of China, with warm summers and cool wet winters (annual rainfall is about 1250 mm), at an altitude of 1500-1700 m above sea level with other conifers, such as Tsuga chinensis , Cephalotaxus sinensis , Taxus chinensis and broad-leaved trees, for example Castanopsis spp. , Fagus lucida , Quercus spp. Acer spp. , Magnolia cylindrica , Lithocarpus hancei .
Trees up to 30 m high and 80 cm in diameter (after 1987 there were no wild trees more than 15 m high and 25 cm in diameter), with a straight round trunk and long, horizontally spreading branches. The bark is smooth and light gray on young trees, and later becomes scaly and longitudinally fissured. Vegetative buds from ovoid to conical, resinous. The leaves are shiny dark green above, paler below, 1-1.5-3.5-4.2 cm × 2.5-3.5 mm in size, there are 2 white stripes below.
Pollen cones lateral, in the axils of the leaves, 2-2.5 cm long, yellow with red microsporophylls. Seed cones are lateral, erect, brown-yellow or light brown when ripe, cylindrical, measuring 7-11 × 3.5-4.5 cm. Seeds oblong-obovate, measuring 6-9 × 3-4 mm, 13 -19 mm long including wings. Pollination takes place in May, the seeds ripen from October to November.
Deforestation (for agriculture) in the past has reduced the population to several trees. The regeneration of the forest mainly causes the dominance of the angiosperms and bamboo at the present time at the place where Abies grew before. Population numbers have been affected by floods in the past, and this remains a threat in the future.
This species was cultivated from cuttings in a forest area in Qingyuan County, southern Zhejiang, China. The rest of the plants in the wild are protected.
