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Ordinary epidermis
Guard cells
Thick cuticle
Thicker cuticle
Thin cuticle
Parasitic plant
Petal epidermis
Sclerified epidermis
Papillose epidermis
Sculptured cuticle
Elaborate cuticle
Cuticular horns
Radial walls
Cuticle proper
No epidermis
Epidermal peels
Cycad peel
Paradermal
Typical stoma
Sunken stoma
Stomatal orientation 1
Unusual orientation 2
Artifact
Stomata and fibers
Stomatal crypts
Crypts, mag.
Crypt margin
Non-crypt
Water lily
Stomatal channels
Groove, hi mag
Subsidiary cells
Ledges
Papillae
Trichome
Uniseriate hair
Peltate hair, mag
Peltate, lo mag
Branched hairs
Trichome base
Lithocyst, Ficus
Lithocysts, hemp
Bulliform cells
Grass epidermis
Multiple epi
Uniseriate?
Peperomia

Fig. 10.2-1. Transverse section of stem epidermis of cosmos (Cosmos). This is a rather ordinary epidermis, a type you might see on many species. The cells are box-shaped (neither columnar nor really flat), their walls are thin (these are parenchyma cells) and the cuticle is a layer thick enough to be seen easily but is not exceptionally thick. The cuticle is rough in a few places: perhaps if viewed by SEM, the roughness would form a pattern, but in transverse section like this, it merely appears irregular. These epidermal cells have protoplasm (most epidermis cells remain alive after completing their morphogenesis).

            The cells below the epidermis are collenchyma.