Plant Tissues PowerPoint Presentation

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Photomicrographs Plant Tissues

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BOTANY Algae Cladophora species Filament in form Several cells

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BOTANY Algae Acetabularia species Many cells

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BOTANY Algae Oedogonium species

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BOTANY Algae Spirogyra species

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BOTANY Spirogyra species Filamentous algae Conjugation (sexual reproduction) Phase contrast photo

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BOTANY Algae Spirogyra species Filament in form Spores: union of 2 cells Bridge

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BOTANY Algae filament

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BOTANY Algae Chara species Many cells

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BOTANY Algae Chlamydomonas sp. One cell

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BOTANY Algae Euglena gracilis One cell with flagella

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BOTANY Algae Oscillatoria species Filament in form Series of cells

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BOTANY Algae Ulothrix species Many cells in filament

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BOTANY Algae Volvox species Hundreds of cells in hollow sphere Cells have flagella Spirogyra species

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BOTANY Green algae Pediastrum species Group of cells

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BOTANY Oscillatoria species Algae Many cells

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BOTANY ANGIOSPERMS ROOTS

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BOTANY ANGIOSPERMS Dicot root Cross section Center of root Xylem form “X” Phloem at tip of xylem

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BOTANY Salix root, x.s. Low magnification Vascular bundle

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BOTANY Ranunculus root, x.s. Low magnification Vascular bundle

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BOTANY ANGIOSPERMS STEMS

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BOTANY ANGIOSPERMS Stem Arrangement of bundles Low magnification

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BOTANY ANGIOSPERMS Bundle in stem Phloem (top) Cambium (middle) Xylem (bottom) (which is interior)

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BOTANY ANGIOSPERMS Growth ring (xylem) Tilia stem Basswood tree

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BOTANY ANGIOSPERMS Coleus stem Cross section of bundle Xylem -- inside Phloem -- outside

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BOTANY Medicago stem, x.s. Vascular bundles in ring

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BOTANY ANGIOSPERMS Stem, composite Cross section Low magnification Soft tissue

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BOTANY ANGIOSPERMS Cells in stem Thickened xylem Cross section

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BOTANY Bamboo stem Cross section

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BOTANY ANGIOSPERMS Xylem cells in stem Longitudinal section Annular rings (left) Spiral rings (right) Rings reinforce the cell wall.

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BOTANY Tilia, 3-year stem, x.s. Bark

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BOTANY Tilia stem, 3-year, x.s.

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BOTANY ANGIOSPERMS LEAF

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BOTANY Castalia leaf Cross section Floating water plant Air spaces

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BOTANY Begonia leaf Cross section Air space Guard cells (stomata)

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BOTANY ANGIOSPERMS Leaf Surface view Low magnification (about 50X) Notice the chloroplasts

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BOTANY Mangrove leaf, x.s. Low magnification Phase contrast photo

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BOTANY Mangrove leaf, x.s. Through central vein Phloem Xylem Phase contrast photo

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BOTANY Mangrove leaf, x.s. Section through small vein Phase contrast photo

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BOTANY Syringa leaf, x.s. Low magnification

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BOTANY Zea mays leaf, x.s. Leaf vein

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BOTANY Oleander leaf, x.s. Pit to reduce water loss Phase contrast photo

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BOTANY Elodea meristem (rapidly dividing cell region) Longitudinal section, l.s.

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BOTANY ANGIOSPERMS FLOWER

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BOTANY Lotus bud, l.s. Base (peduncle) Flower

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BOTANY Flower petals

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