Leaf bipinnate

petiole

primary leaflet orpinna

rachis

secondary leafletsor pinnules

branch

Monocot leaf - Bouteloa

cuticleupper epidermis

bulliform cells

Monocot leaf, bulliform cells, Zea mays

Bulliform cells

xylem vesselsmesophyll cellswith chloroplasts

Bundle sheath cells

phloem

cuticle

Upperepidermis

Monocot bulliform cells, thick cuticle, trichome

bulliform cells xylem vessels

trichome

stoma and guard cellssclerenchyma

fibers phloem

bundle sheathcells

Dicot leaf; shade leaf

palisade mesophyll

veinlets

air spaces inspongy mesophyll

Dicot sun leaf

veinletspongy mesophyllcellsair spaces

palisade mesophyll

Leaf epidermis surface view

secondary veins veinlet areoles

included veinlets

Xerophyte dicot leaf; Nerium oleander.

Aerenchyma leaf mesophyll tissue

palisade mesophyll

large air spacesspongy mesophyll spongy mesophyll cells

very thin epidermis

Stipules, Geranium stipules

trichomes

petiole

stem

Stipules of Trifolium hybridum, clover.

stipulepetiole

stem