表皮
botany bay
bright
bundle sheath
cortex
cross section
detail
dicot vascular cylinder
endodermis
environment
experimental
ground
growth
health
isolated
laboratory
life
light
mature root
meta xylem
micro
microscope
microscopic
microscopy view
pericycle
phloem
pith
plant
plant tissue
plant tissue culture
primary
primary phloem
primary xylem
proto xylem
ranunculus acris
research
root canal
root hair
root tree
science
scientist
scope
section
slide
stele
stem
tip
vascular bundle
vascular cambium
xylem and phloem