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ANGIOSPERMS
Micro- gametogenesis
Mega-gametogenesis
Floral morphology*/ pollination
Embryogenesis
*Superior / inferior ovary
Floral morphology*/ pollination
• Has to do with floral morphology
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Classification scheme is based on location of the ovariescan be multiple present or the superior and inferior ovary
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Ovary is about the
sepals and cups that surround it- Example of superior ovary
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Ovaries are below
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• The other aspect is located to the actual location of the ovules or carpel
structures present in the ovary structure
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There is a wide
diversity associated with morphology
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Locations of ovules and ovaries
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Proboscis
(a long narrow tube- that extends down) of the moth allows it to go deep
into the florets and take in the nectar present there
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• See a sort of relationship between potential pollinators and floral morphology
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Example
Dish-bowl, Bell [ funnel], Gullet, Tube, Head/brush, flag, tube trumpet
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Insects that crawl from one flower to another thus pollinating
them in the process
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• Butterflys pollinate Head/brush- ones that have a very long proboscis
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Nectary
is deeply hidden and Pollen deposition is varied
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The nectary that offers a high carb diet for the insect is deep in the

tube
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With the tube-trumpet- insect has to land on the opening
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It’s optimal for an
aligned insect and not crawling like in butterflies- like Humming birds or
honey suckle
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Pollen deposition is diffused and on the
outside because thats where the pollen is
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Question on the test:
Dish bowl and Head brush
• Head brush - alighting visitors; longer mouthparts; best, butterflies and
birds**
• Pollen and germination trait that occurs on the stigmatic surfaceSuccessfully deposited that pollen on the stigmatic surface- the pollen
will then germinate
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• Two dimensional way- there are very large cells known as papillae cells
which go all long the stigmatic surface
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Couple of
things can occur there in terms of the pollen
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This adhesion may or may not be important and often
is
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Adhesion, if its from a cherry may get adhesion- if its from a
daisy the pollen will fall of in the wind
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• Next thing that can play a role is something that is probably hidden- Think
about germination of a seed
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When its on the stigmatic surface it imbibes
water taking in water making it metabolically active
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The cherry plant won’t give water to a
daisy pollen- enables it to maintain its integrity as a cherry plant
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All of these things
result in successful germination of the pollen

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