Wood knowledge - gum road

The intercellular channels in the three-finger broad-leaved tree are only found in a few species, not as much as the resin road of the conifer. It is divided into axial gum lanes and radial gum lanes and normal gum lanes and wound gum lanes. Normal axial gum lanes are normal axial intercellular channels in broadleaf trees. Individual distributors such as dipterocarp; several connected short chord columns and concentric long strings, such as slopes. This feature should be observed on the cross section. Radial gum lanes are included in the spindle ray that traverses the grain in the radial direction, and the axial gum lanes and radial gum lanes are rarely present in the same specimen. This feature should be observed on the chord plane. The traumatic gum lane is caused by trauma, non-fixed features; the axial direction is usually long string, such as Du Ying, etc., may appear in some species in Kapok, Leguminosae; radial has not been reported.

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