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The dark horizontal lines on silver birch bark are the lenticels. [1]A lenticel is a porous tissue consisting of cells with large intercellular spaces in the periderm of the secondarily thickened organs and the bark of woody stems and roots of gymnosperms and dicotyledonous flowering plants. [2]
The epidermis is a layer of cells that cover the plant body, including the stems, leaves, flowers and fruits, that protects the plant from the outside world. In old stems the epidermal layer, cortex, and primary phloem become separated from the inner tissues by thicker formations of cork.
Lenticle may refer to: . A small lens.; A glass panel in a clock case through which one can see the movement of the pendulum. A lens-shaped layer of mineral or rock embedded in a different material.
Clerodendrum glabrum is a small to medium deciduous tree, widespread from Tropical to Southern Africa.. In common with others of this family, its bark is covered in prominent white lenticels.
The stem of a plant, especially a woody one; also used to mean a rootstock, or particularly a basal stem structure or storage organ from which new growth arises. Compare lignotuber. caudiciform Stem-like or caudex-like; sometimes used to mean "pachycaul", meaning "thick-stemmed". caudicle
There are many ways in which a plant can become infected by a bacterial soft rot. They can be host to the bacteria either by being infected as seed, or from direct inoculation into wounds or natural openings (stomata or lenticels) in mature plants, which is most common. But, when a plant is infected and the conditions are favorable, the ...
Complementary cells are a mass of cells in plants, formed from the cork cambium at the position of the lenticels. It is a group of loosely arranged cells that aid in gaseous exchange through cork . [ 1 ]
A shrub or small tree growing to 9 metres in height and a trunk diameter of 30 cm. The trunk is cylindrical or somewhat flanged at the butt in larger plants. The bark is fawnish brown or grey, fairly smooth with some lines of vertical bumps and other irregularities. Branchlets are often hairy, green turning to fawn with lenticels.