CELL TYPE CYTOPLASMIC FEATURES CELL WALL FEATURES 3-D GEOMETRY
Collenchyma Nucleus

Vacuolated

Mitochondria

Chloroplasts

 Primary cell wall of variable thickness

Subcategories recognized on basis of location of thickest region of cell walls:
 
Subcategory ThickestCell Wall Location
Lamellar Tangential Walls
Angular At edges where two cell wall faces meet
Lacunar Next to intercellular spaces
 
Transverse Polygonal
Longitudinal  Elongated with tapering ends or less elongated prismatic