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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

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photomicrographs

Photomicrographs

Plant Tissues

botany
BOTANY
  • Algae
  • Cladophora species
  • Filament in form
  • Several cells
botany1
BOTANY
  • Algae
  • Acetabularia species
  • Many cells
botany2
BOTANY
  • Algae
  • Oedogonium species
botany3
BOTANY
  • Algae
  • Spirogyra species
botany4
BOTANY
  • Spirogyra species
  • Filamentous algae
  • Conjugation (sexual reproduction)

Phase contrast photo

botany5
BOTANY
  • Algae
  • Spirogyra species
  • Filament in form
  • Spores: union of 2 cells
  • Bridge
botany6
BOTANY
  • Algae
  • filament
botany7
BOTANY
  • Algae
  • Chara species
  • Many cells
botany8
BOTANY
  • Algae
  • Chlamydomonas sp.
  • One cell
botany9
BOTANY
  • Algae
  • Euglenagracilis
  • One cell with flagella
botany10
BOTANY
  • Algae
  • Oscillatoria species
  • Filament in form
  • Series of cells
botany11
BOTANY
  • Algae
  • Ulothrix species
  • Many cells in filament
botany12
BOTANY
  • Algae
  • Volvox species
  • Hundreds of cells in hollow sphere
  • Cells have flagella

Spirogyra species

botany13
BOTANY
  • Green algae
  • Pediastrum species
  • Group of cells
botany14
BOTANY
  • Oscillatoria species
  • Algae
  • Many cells
botany15

BOTANY

ANGIOSPERMS

ROOTS

botany16
BOTANY
  • ANGIOSPERMS
  • Dicot root
  • Cross section
  • Center of root
  • Xylem form “X”
  • Phloem at tip of xylem
botany17
BOTANY
  • Salix root, x.s.
  • Low magnification
  • Vascular bundle
botany18
BOTANY
  • Ranunculus root, x.s.
  • Low magnification
  • Vascular bundle
botany19

BOTANY

ANGIOSPERMS

STEMS

botany20
BOTANY
  • ANGIOSPERMS
  • Stem
  • Arrangement of bundles
  • Low magnification
botany21
BOTANY
  • ANGIOSPERMS
  • Bundle in stem
  • Phloem (top)
  • Cambium (middle)
  • Xylem (bottom)

(which is interior)

botany22
BOTANY
  • ANGIOSPERMS
  • Growth ring (xylem)
  • Tilia stem
  • Basswood tree
botany23
BOTANY
  • ANGIOSPERMS
  • Coleus stem
  • Cross section of bundle
  • Xylem -- inside
  • Phloem -- outside
botany24
BOTANY
  • Medicago stem, x.s.
  • Vascular bundles in ring
botany25
BOTANY
  • ANGIOSPERMS
  • Stem, composite
  • Cross section
  • Low magnification

Soft tissue

botany26
BOTANY
  • ANGIOSPERMS
  • Cells in stem
  • Thickened xylem
  • Cross section
botany27
BOTANY
  • Bamboo stem
  • Cross section
botany28
BOTANY
  • ANGIOSPERMS
  • Xylem cells in stem
  • Longitudinal section
  • Annular rings (left)
  • Spiral rings (right)

Rings reinforce the cell wall.

botany29
BOTANY
  • Tilia, 3-year stem, x.s.
  • Bark
botany30
BOTANY
  • Tilia stem, 3-year, x.s.
botany31

BOTANY

ANGIOSPERMS

LEAF

botany32
BOTANY
  • Castalia leaf
  • Cross section
  • Floating water plant
  • Air spaces
botany33
BOTANY
  • Begonia leaf
  • Cross section
  • Air space
  • Guard cells (stomata)
botany34
BOTANY

ANGIOSPERMS

Leaf

  • Surface view
  • Low magnification

(about 50X)

  • Notice the chloroplasts
botany35
BOTANY
  • Mangrove leaf, x.s.
  • Low magnification
  • Phase contrast photo
botany36
BOTANY
  • Mangrove leaf, x.s.
  • Through central vein
  • Phloem
  • Xylem

Phase contrast photo

botany37
BOTANY
  • Mangrove leaf, x.s.
  • Section through small vein

Phase contrast photo

botany38
BOTANY
  • Syringa leaf, x.s.
  • Low magnification
botany39
BOTANY
  • Zea mays leaf, x.s.
  • Leaf vein
botany40
BOTANY
  • Oleander leaf, x.s.
  • Pit to reduce water loss
  • Phase contrast photo
botany41
BOTANY
  • Elodea meristem (rapidly dividing cell region)
  • Longitudinal section, l.s.
botany42

BOTANY

ANGIOSPERMS

FLOWER

botany43
BOTANY
  • Lotus bud, l.s.
  • Base (peduncle)
  • Flower
botany44
BOTANY

Flower petals

slide47

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