Ginkgo

Ginkgopsida
is a deciduous tree with long and short branches. Leaves on the long branches of each other, clustered on short branches, blade fan shape, first end of the two cracks or wave-shaped lack of engraving, binary pulse sequence. Spore leaf ball mono sex, male and female strains, sperm whiplash hair. Seed nucleo-like, with 3 layers of seed skin, blastocyst rich.
the Ginkgo Biloba L., which is now the only remaining Ginkgoaceae. 1 species, a world-famous plant. China's special products, at present only Zhejiang Xitianmangshan may still exist in the wild state of Ginkgo, widely cultivated around the world. Ginkgo is a tall, multi-branched tree. Branches are high-nutrition long branches and side-born reproductive short branches, long branches, small myelin, thin cortical layer, thick wood; The spore leaf ball is softflower-like, born in the scaly armpits at the top of the short branch, the small spore leaf has a short handle, the handle end has 2 (rare 3 to 7) hanging spore sacs. Large spore leaf ball is very simple, usually only 1 long handle, the top with 2 ring-shaped large spore leaves (specially known as bead collar), large spore leaves each produced 1 embryo bead, but usually only 1 developed into a seed. Seeds are near-spherical, seed skin is divided into 3 layers; outer skin yellow, meat; medium skin white, bone; inner skin red, thin paper, endosperm flesh.
beautiful shape of Ginkgo trees, for excellent road trees and landscaping tree species. Wood is fine, is an excellent wood tree species. Breeding kernels (white fruit) for consumption and medicinal use, has the effect of moisturizing the lungs, coughing, strong and so on. Recent studies have shown that bioactive
compounds
, such as flavonoids, ginkgo esters and white fruit esters, have a very good effect on the treatment of cardiovascular diseases and the prevention of Alzheimer's disease, and become an important medicinal plant.

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