Eucommiaceae

1 new department of the Gemin-leaf plant,
Maya
.leaves, no leaves. Flower monogene heterogeneity, no flower is, the first leaf open or open at the same time with the buds. Male flower cluster, male
6

10
, flower silk short, flower medicine long strip. Female flower single was born in the sliver, the sub-room flat, long, top fork,
1
room, flower column
2
, forked and reversed. Reseeding embryo beads
2
, dying. Wing fruit long round, the first end
2
, seeds
1
. Chromosomal base
x
17
3
, with step-by-step perforation of the primary catheter. Secondary catheter single perforation. Undergraduates only
1
belong to
1
species, that is, Du Zhong genus, Du Zhong (see page
113
of the color map insert) is endeth in China, the origin of the Yellow River south, wuling north provinces, is now sichuan, Guizhou, Hunan, Jiangxi, Hubei generally planted; Wild is rare.Natural growth is commonly found in low-altitude mountain dredging forests, the requirements of the soil is not strict, regardless of the barren red soil or stone mountains can grow, the germination force is very strong, the germination strip can be up to
40
plants, suitable for shrub operations to extract hard rubber.bark and branches contain hard rubber, good insulation performance, can withstand knock-through voltage, resistance to cyanofluoric acid erosion, for thermoplastic materials, can be without vulcanization and manufacture of insulation products. Medicinal drugs can lower blood pressure and make strong agents (essential for astronauts), and treat back and knee pain, rheumatoids and habitual abortion. Medicinal DuZhong can be divided into two categories, the outer bark of crude-skin Duzhong is thicker than the inner living bark, and more cracks, and the inner bark of light-skin Duzhong is thicker than the outer bark. Whether it is medicinal or extracted hard glue, light-skin du-chung is more coarse-pidu-zhong excellent. Wood texture is meticulous, not twisting, suitable for the production of furniture and construction materials. Seeds have an oil content of up to
27
%.in the system classification, has always belonged to the golden plum. There is also it classified as castor, or independent into Du Zhongming. Recent studies have suggested that it comes from the golden plum, and through itevolved a soft flower sequence, especially with the urticaria.com. Du Zhongke is an ancient relic plant whose fossils can be found in the Third Age strata of Europe and North America.