Plant tissues. Support
LACUNAR COLLENCHYMA
Organ: stem, lacunar collenchyma.
Species: euphorbia (Heuphorbia helioscopia).
Technique: paraffin embedding, section stained with Alcian blue.
Species: euphorbia (Heuphorbia helioscopia).
Technique: paraffin embedding, section stained with Alcian blue.
Lacunar collenchyma, like angular collenchyma, has primary cell wall thickenings located where adjoining cells meet. However, these thickenings do not completely fill the intercellular spaces, and empty intercellular spaces can be observed.