表皮
annual ring
background
bark
biology
botanic
botany
cambium
cell
collenchyma
cork cambium
cortex
crosssection
cutin
detail
dicot
education
ground tissue
isolated
lab
macro
meristem
microscope
microscopic
monocot
nature
parenchyma
pattern
phloem
pith
plant
plant stem
research
science
sclerenchyma
secondary growth
secondary phloem
secondary xylem
section
slide
stele
stem
under
vascular
vascular bundle
vascular cambium
vascular plant
white
wood
xylem