Plant Tissues in Monocots and Eudicots

	Monocot Stem Zea mays Vascular bundles scattered throughout stem.
	Monocot Stem Zea mays Closeup of vascular bundles (indicated by arrow) surrounded by cortical tissue.
	Monocot Root Smilax sp. Endodermis indicated by thick arrow. Peripheral to the endodermis is the cortex, and peripheral to that is the epidermis. The pith is indicated by the thin arrow, and the vascular bundles lie between the endodermis and the pith.
	Eudicot Stem Ranunculus sp. Vascular bundles (indicated by arrow) arranged in a peripheral ring.
	Eudicot Shoot Longitudinal-section showing apical meristem (indicated by the thick arrow), flanked by leaf primordia and axillary buds.
	Woody Eudicot Stem Tilia sp. Cross-section showing lateral meristem (vascular cambium) indicated by the thick arrow. The xylem is generated internal to the lateral meristem , and the phloem is generated peripheral to the lateral meristem. The thin arrow indicates the pith.
	Woody Eudicot Stem Tilia sp. Longitudinal-section showing lateral meristem (vascular cambium) indicated by the thick arrow. The xylem is generated internal to the lateral meristem , and the phloem is generated peripheral to the lateral meristem. The thin arrow indicates the pith.
	Eudicot Root Ranunculus sp. Vascular bundle (stele) is central (indicated by thick arrow). Epidermis is indicated by the thin arrow, and the intervening tissue is the cortex.
	Leaf Structure Ligustrum sp. Arrow indicates pallisade mesophyll beneath epidermis. The spongy mesophyll is beneath the pallisade mesophyll.
	Leaf Stomata Guard cells flanking a stoma.
	Gymnosperm Stem Pinus sp. Cross-section through a young stem showing lateral meristem (vascular cambium) indicated by the thick arrow. The xylem is generated internal to the lateral meristem , and the phloem is generated peripheral to the lateral meristem. The thin arrow indicates the pith.
	Gymnosperm Stem Pinus sp. Cross-section through a mature stem showing lateral meristem (vascular cambium) indicated by the thick arrow. The xylem is generated internal to the lateral meristem , and the phloem is generated peripheral to the lateral meristem. The thin arrow indicates the pith.