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Stems
Fig 8.28
dicot seedling
1
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axillary bud
2
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Apical dominance & plant shape
Primary
meristems
Secondary/lateral
meristems
3
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dicot stem
monocot stem
ground tissue
Phyllotaxy =
arrangement
of leaves on
a stem
Vascular
system
changes:
Leaf trace
Leaf gap
Leaf gap
4
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Woody stem
Wood sections/“cuts”
tangential
radial
transverse
5
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“Lumber terms”
Vascular cambium: making more xylem & phloem
6
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Bark
cork cambium
phelloderm
phloem
b
a
r
k
Vascular
cambium
Different barks
Tendrils or
hooks
7
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thorns
Specialized stems
flattened
8