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Woody plant structure - Coggle Diagram
Woody plant structure
roots secondary growth
just as stems
star shaped cambium
becomes circular
similar growth rates
vascular cambium
ray
fusiforms
perennial roots
from bark
arises from pericylce
cork cells produced
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protection
vascular cambium
initiation
meristem
secondary plant body
ray initials
fusiform initials
herbaceous species
metaxylem
metaphloem
fascicular cambium
vascular bundle
interfascicular cambium
fusiform initials
longitudinal cell division
periclinal wall
fusiform
secondary xylem
inner side
secondary phloem
anticlinal wall
increases cambial cells
ray initials
shape
short
cuboidal
periclinal cell division
produced cells
parenchyma
gymnosperms
albuminous
cambial cell arrangement
rays
short
one, two, many
vertical
fusiforms
horizontal
nonstoried cambium
storied cambium
recently evolved
secondary xylem
cell wood types
axial system
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tracheary elements
fiber
hardwoods
eudicots
angiosperms
no fibers
softwoods
xylem parenchyma
radial system
rays
ray tracheids
parenchyma
biseriate
multiseriate
uniseriate
cells
upright
axial connection
procumbent
no axial connection
store carbohydrates
Growth rings
early wood
spring wood
late wood
summer wood
1 year growth
annual ring
alternate arrangements
diffuse porous
ring porous
heartwood and sapwood
sapwood
darkwood
tylosis
plug
reaction wood
due to gravity
response to stress
conifers
compression wood
secondary phloem
axial system
conducting up/down
companion cells
sieve tube members
inner most layer
conduction
fibers
nonconducting parenchyma
radial system
match secondary xylem
outer bark
cork cambium
phellogen
cell shape
cuboidal
cork cell
phellum cell
phelloderm
periderm
inner most cork
outer bark
inner bark
initiation
arises young
twig or year
green
later stages
deep in xylem
lenticels
oxygen diffusion
outer
inner
forms of growth
anomalous secondary growth
alternates froms
sweet potatoes
storage increased dramatically
by parenchyma
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many vascular cambia
included phloem
eudicots
vascular cambium
ordinary xylem
ordinary phloem
xylems two bands
unequal activity
vascular cambium
woody vines
advantages
flexibility
adaptive
monocots secondary growth
not like eudicots
unusual primary growth
establishment groth
vascular cambium
outermost vascular bundles
only parenchyma
secondary vascular bundles
concepts
growth
apical meristems
primary tissues
vascular bundles
pith
cortex
epidermis
leaves
secondary woody tissues
cork cambium
vascular cambium
phloem
bark
conducting tissue
protection
