0 Leaf Development Terms and Photosynthetie Aspects.- 0.1 Phases of Leaf Development and Insertion Profile.- 0.2 Common Imperfections of Leaf Ontogenetic Studies.- 0.3 Specialized Monographs and the Scope of this Book.- 1 Ontogeny of Leaf Morphology and Anatomy.- 1.1 Leaf as a Photosynthetie Structure.- 1.2 Leaf Growth, Leaf Area and Size, Leaf Thickness.- 1.2.1 Leaf Area.- 1.2.2 Leaf Size and Shape.- 1.2.3 Leaf Thickness.- 1.2.4 Leaf Plastochron Index:.- 1.3 Leaf Epidermis.- 1.3.1 Number of Epidermal Cells, their Sizes, and Thickness of Epidermis.- 1.3.2 Cuticle, Waxes, Trichomes.- 1.3.3 Stomata.- 1.3.3.1 Stomata Density.- 1.3.3.2 Stomata Size.- 1.3.3.3 Absolute Number of Stomata per Leaf.- 1.3.3.4 Stomatal Index.- 1.4 Leaf Mesophyll.- 1.4.1 Leaf Anatomy of C3,C4, and CAM Plants.- 1.4.2 Mesophyll Thickness and Tissue Volumes.- 1.4.3 Intercellular Air Spaces and Internal Leaf Surface.- 1.4.4 Mesophyll Cells.- 1.4.5 Chloroplasts.- 1.4.5.1 Chloroplast Numbers.- 1.4.5.2 Chloroplast Sizes.- 1.4.6 Vascular System.- 1.5 Zalenski? Law.- 1.6 Conclusions.- 2 Chloroplast Development.- 2.1 Chloroplast Structure.- 2.2 Ontogeny of Chloroplast Structure.- 2.2.1 Outlines of Chloroplast Development.- 2.2.2 Non-ontogenetic Changes in Chloroplast Structure.- 2.2.3 Chloroplast Ultrastructure during Leaf Development.- 2.2.3.1 Leaves of Herbs and Deciduous Woody Plants.- 2.2.3.2 Leaves of Evergreen Woody Plants.- 2.2.3.3 Chloroplast Ontogeny in Relation to C3, C4, or CAM Pathway.- 2.2.4 Chloroplast Substructure during Leaf Development.- 2.2.5 Environmental or Experimental Modifications of the Chloroplast Ontogeny.- 2.3 Conclusions.- 3 Chlorophylls and Carotenoids during Leaf Ontogeny.- 3.1 The Importance of Chlorophyll and Carotenoids.- 3.2 Biosynthetic Processes.- 3.2.1 Chlorophyll Biosynthesis.- 3.2.1.1 Precursors of Chlorophyll.- 3.2.1.2 Enzymes of Chlorophyll Biosynthesis.- 3.2.1.3 Chlorophyll Biosynthesis in Various Parts of the Leaf Blade.- 3.2.1.4 Chlorophyll Biosynthesis and Cls•