Plant tissues. Support
ANNULAR COLLENCHYMA
Organ: stem, annular collenchyma.
Species: mallow (Malva sylvestris).
Technique: paraffin embedding, section stained with Alcian blue / safranin.
Species: mallow (Malva sylvestris).
Technique: paraffin embedding, section stained with Alcian blue / safranin.
This is the only type of collenchyma where the thickenings of the cell walls are uniform around the cell. It contains empty intercellular spaces.