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Structure of Woody Plants (Vascular Cambium (Initiation of the Vascular…
Structure of Woody Plants
Concepts
Primary Tissues
Primary Plant Body
Secondary Tissues
Secondary Body
Bark
Move water and minerals
Vascular Cambium
Initiation of the Vascular Cambium
Fasicular Cambium
Cells that Divide
Interfascicular Cambium
Connects to fascicular cambia
Vascular Cambium
Secondary Plant body
Fusiform Initials
Periclinal Wall
Wall parallel to camuim
Anticlinal Walls
Perpendicular to cambium
Ray Initials
Similar to fusiform
Short
Storage Parenchyma
Arrangement of Cambial Cells
Stored Cambium
Horizontal rows
Nonstored Cambium
Nonhorizontal Pattern
Secondary Xylem
Types of Wood Cells
Secondary Xylem
Wood
Axial System
Fusiform Initials
Radial System
Ray Initials
Hardwoods
Strong and tough
Softwood
Few or no fibers
Upright Cells
Ray parenchyma
Procumbent Cells
Ray Parenchyma
Ray Tracheids
Secondary walls
Growth Rings
Early wood
Spring wood
Late wood
Summer wood
Annual ring
Growth ring
Diffuse porous
Wood with Vessels
Ring porous
Ring with Vessels
Heartwood and Sapwood
Heartwood
Dark wood
Sapwood
Light, Moist wood
Reaction Wood
Response to stress
Different side per tree
Secondary Phloem
Vascular Cambium
Axial system
Outer Bank
Cork and the Cork Cambium
Cork Cambium
Phellogen
Cork Cell
Phellem Cell
Phelloderm
Layer of Parenchyma cells
Periderm
All 3 Below
Outer bark
Outside innermost cambium
Inner Bark
Vascular and innermost cambium
Lenticels and Oxygen Diffusion
Lenticels
Aerenchymatous Cork
Initiation of Cork Cambia
Variable
Bark differs with age
Secondary Growth in Roots
Ray and Fusiform initials
Wood not identical to stems
Several storages
Anomalous Forms of Growth
Anomalous Secondary Growth
Roots of sweet potatoes
Parenchyma increase
Unequal Activity of the Vascular Cambium
Stem in 2 directions
Included phloem
Between 2 phloem
Secondary Growth in Monocots
Narrow parenchyma cells
Unusual Primary Growth
Establishment Growth
Primary Growth
Palm trees
