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Chapter 8 Structure of Woody Plants (outer bark (cork cambrium (outside…
Chapter 8 Structure of Woody Plants
vascular cambium
fascicular cambium
interfascicullar cambrium
2 types of cells
ray initials
shorter
more or less cuboidal
fusiform initials
long, tapered cells
anticlinal wall
periclinal wall
arrangement of cambial cells
storied cambrtium
regular horizontal rows
non storied cambium
irregular horizontal pattern
secondary xylem
types of wood cells
secondary xylem
wood
hardwoods
large amounts of fibers
softwoods
few to no fibers
axial systems
derived from fusiform initials
radial system
develops from ray initials
rays
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upright cells
procumbent cells
parenchyma cells
tracheid cells
growth rings
early wood
spring
late wood
summer
tell trees age
sapwood
lighter
outer region
moister
heartwood
center of log
darker
outer bark
cork cambrium
phellogen
outside innermost
outer bark
inner bark
secondary phloem
cork cell
phellem cell
phelloderm
periderm
secondary phloem
radial
axial
conducting up and down
anomalous forms of growth
secondary growth
sweet potatoes
storage parenchyma increases
monocots
secondary vascular bundles
unequal activity of vascular cambium
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when 2 sides grow
thin flat woody ribbon
primary growth
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establishment growth
increase in width and roots
vascular cambium grows uniformly except sometime where 2 sides grow and 2 sides don't
the Lines that go from center of trunk to the bark
usually better in the spring
