Page 147 - (DK) The Ultimate Visual Dictionary 2nd Ed.

POLLINATION
INSECT POLLINATION OF MEADOW SAGE
Pollen grains attached
Immature, unreceptive to hairy abdomen
stigma
Sepal Long style curves
downward when Sepal
bee enters flower
Anther pushed on to
bee’s hairy abdomen
Mature, receptive
stigma touches bee’s
Labellum Labellum
(lip) forming Pollen grains from abdomen, picking (lip) forming
landing stage anther stick to up pollen landing stage
for bee bee’s abdomen for bee
1. BEE VISITS FLOWER WITH MATURE 2. BEE FLIES TO 3. BEE VISITS FLOWER WHERE
ANTHERS BUT IMMATURE STIGMA OTHER FLOWERS THE ANTHERS HAVE WITHERED
AND THE STIGMA IS MATURE
SUNFLOWER UNDER NORMAL
AND ULTRAVIOLET LIGHT Petal ST. JOHN’S WORT
UNDER NORMAL AND
Ovary ULTRAVIOLET LIGHT
Central area of Filament Stigma
disk florets Stamen Honey guide
Anther directs insects
Ray floret to dark,
central part
NORMAL LIGHT of flower
NORMAL LIGHT

Paler, outer part
of ray floret
Darker, inner
part of ray floret

Insects attracted to
darkest, central part
of flower, which
contains nectaries,
anthers, and stigmas

Dark central area containing
nectaries, anthers, and stigmas
ULTRAVIOLET LIGHT
Colpus
(furrow-shaped
ULTRAVIOLET LIGHT Columella (small aperture)
Trilete mark column-shaped Exine
(development structure)
Exine (outer coat of
Pore (outer coat of scar) pollen grain)
pollen grain)

Tricolpate
Exine Exine (three colpae)
(outer coat of (outer coat of pollen grain
pollen grain) pollen grain)
MIMULOPSIS SOLMSII THESIUM ALPINIUM RUELLIA GRANDIFLORA CROSSANDRA NILOTICA

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