CELL TYPE	CYTOPLASMIC FEATURES	CELL WALL FEATURES	3-D GEOMETRY
Guard Cells  A.  Occur in pairs	Nucleus  Vacuolated  Mitochondria  Chloroplasts  Abundant Starch grains	Primary cell wall of variable thickness  Thickest wall is adjacent to intercellular space (stomatal pore) between the two guard cells.  This wall is heavily cutinized and may be lignified.  Outer periclinal wall is typically  thick and is heavily cutinized and sometimes lignified.  The wall adjacent to the intercellular space and periclinal outer wall are covered with a cuticle and/or wax.	Ground Epidermal Cell Paradermal Polygonal, Elongate, Undulating puzzle shape Longitudinal  Rectangular with longest axis in periclinal plane in most organs, however, in many seeds the longest axis is in the anticlimal plane