Photomicrographs Plant Tissues.

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Presentation transcript:

Photomicrographs Plant Tissues

BOTANY Algae Cladophora species Filament in form Several cells

BOTANY Algae Acetabularia species Many cells

BOTANY Algae Oedogonium species

BOTANY Algae Spirogyra species

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

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

BOTANY Algae filament

BOTANY Algae Chara species Many cells

BOTANY Algae Chlamydomonas sp. One cell

BOTANY Algae Euglena gracilis One cell with flagella

BOTANY Algae Oscillatoria species Filament in form Series of cells

BOTANY Algae Ulothrix species Many cells in filament

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

BOTANY Green algae Pediastrum species Group of cells

BOTANY Oscillatoria species Algae Many cells

BOTANY ANGIOSPERMS ROOTS

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

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

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

BOTANY ANGIOSPERMS STEMS

BOTANY ANGIOSPERMS Stem Arrangement of bundles Low magnification

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

BOTANY ANGIOSPERMS Growth ring (xylem) Tilia stem Basswood tree

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

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

BOTANY ANGIOSPERMS Stem, composite Cross section Low magnification Soft tissue

BOTANY ANGIOSPERMS Cells in stem Thickened xylem Cross section

BOTANY Bamboo stem Cross section

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

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

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

BOTANY ANGIOSPERMS LEAF

BOTANY Castalia leaf Cross section Floating water plant Air spaces

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

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

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

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

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

BOTANY Syringa leaf, x.s. Low magnification

BOTANY Zea mays leaf, x.s. Leaf vein

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

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

BOTANY ANGIOSPERMS FLOWER

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

BOTANY Flower petals

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