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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 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
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.
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 ...
In contrast with many trees, aspen bark is base-rich, meaning aspens are important hosts for bryophytes [4] and act as food plants for the larvae of butterfly (Lepidoptera) species—see List of Lepidoptera that feed on poplars. Young aspen bark is an important seasonal forage for the European hare and other animals in early spring.
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.
In common with others of this family, its bark is covered in prominent white lenticels. Leaves are usually in whorls of 3 and produce a fetid smell when crushed. The fragrant flowers are usually mauve with strongly exserted stamens and style, a common characteristic of the genus, and are borne in dense, terminal clusters.
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 ]