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Structure of Woody Plants (Growth Ring (Annual Ring (It just growth for…
Structure of Woody Plants
Primary Tissues
Secondary Tissues
Fascicular Cambium
Interfascicular Cambium
Vascular Cambium
Two types of Cells
Fusiform Initials
They are long , tapered cells and they produce the elongate cells of wood and phloem.
Axial xylem
Axial pholem
Cork Cambium
Phelloderm
Cork
Ray Initials
They are short and more or less cuboidal. They produce short cells and storage parenchyma and in gymnosperms albuminous cells.
Phloem rays
Xylem rays
Secondary Xylem
Axial System
It is derived from the fusiform initials.
Trachea elements
longitudinal conduction
Radial System
It develops from the ray initials.
Parenchyma
Rays
upright cells
Procumbant cells
Hardwoods
A woods which contain large amount of fibers, making them strong, tough and useful for construction is called hardwood.
Example: Balsa
Softwoods
A woods which contain few fibers and have a softer consistency is called softwoods.
Example: Bald-cypress, Taxodium
Heartwood
Sapwood
Growth Ring
Annual Ring
It just growth for one year.
First wood
Early wood
Late wood
Summer wood
Pholem
Epidermis
Cortex
