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Leaves. Leaf Anatomy Typical Dicot Leaf X-Section Palisade Parenchyma Spongy Parenchyma Vascular bundles Epidermis Cuticle Stoma Guard Cells.

Published byRonald Lester Modified over 8 years ago

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Presentation on theme: "Leaves. Leaf Anatomy Typical Dicot Leaf X-Section Palisade Parenchyma Spongy Parenchyma Vascular bundles Epidermis Cuticle Stoma Guard Cells."— Presentation transcript:

1 Leaves

2

3 Leaf Anatomy

4 Typical Dicot Leaf X-Section Palisade Parenchyma Spongy Parenchyma Vascular bundles Epidermis Cuticle Stoma Guard Cells

5 Typical Monocot Leaf X-Section Xylem Phloem Bulliform Cells Stoma Epidermis Midvein Vein Bundle sheath cell

6 Leaf Stomata: Allow Gas Exchange Stomata in Zebrina leaf epidermis Guard cells with chloroplasts Stoma Subsidiary cells

7 Leaf Taxonomy

8 Opposite: 2 leaves at a node, on opposite sides of the stem Spiral: 1 leaf per node, with the second leaf being above the first but attached on the opposite side of the stem Whorled: 3 or more leaves at a node Leaf Arrangement on the Stem

9

10 Monocot Leaf

11 Dicot Leaf Spongy mesophyll Adaxial Epidermis Palisade mesophyll midvein midrib Abaxial Epidermis

12 Lilikoi; Passiflora edulis Tendrils Leaf modifications Spines Storage Common cactus finch, Galapagos sepals petals Leaf/ bract Petal-like

13 Indian Pipe Monotropa uniflora

14 Venus fly trap Silver sword Brighami rockii Australian pine Casuarina equisetifolia

15 World’s largest pitcher plant Nepenthes rajah Tree shrew What is going on?

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