+Leaves+ 97
A leaf a digestive organ—Petiole and blade venation—
Monocotyledons—Dicotyledons—Radical leaves—Phyllotaxis—
Epidermis—Stomata—Influence of foliage upon climate—Eucalyptus—
Mesophyll—Chlorophyllon—Pallisade tissue—Protoplasm—Absorption
of carbon-dioxide—Jewel-weed—Alchemilla—Growing wheat—Vertical
leaves of eucalyptus cork layer—Fall of the leaf—Useful
products of trees.