Flower & Foliage Morphology. Parts of the Flower.
Transcript of Flower & Foliage Morphology. Parts of the Flower.
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Flower & Foliage Morphology
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Parts of the Flower
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Flower Nomenclature (name of parts)Flower parts
SepalsCalyxTepalsPerianth
PetalsCorolla
StamenPistilReceptacle
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Sepals-outermost flower structure that encloses the other flower parts in the bud
Sepals
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Calyx-collective term for all sepals in a flower
Calyx
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Tepals-both sepals and petals are identical
Petals
Sepals
Petals + Sepals = TepalsOnly when sepals and petals look alike. Inner whorl is petals, outer whorl is sepals.
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Perianth-petals and sepals combined (may or may not be identical)
Petals
Sepals
Perianth
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Petals-flower’s showpiece positioned between the sepals and inner flower parts
Petal
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Corolla-collective term of all petals in a flower
All Petals
Corolla
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Flower Nomenclature
Stamens-male reproductive parts of the flowerAndroecium-collective term of all male parts
“meaning house of man”• Anther-pollen-bearing portion of the stamen• Filament-stalk of the stamen bearing the anther
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Stamen=Anther + Filament
Filament
AntherStamen
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Stamen=Anther + Filament
Filament
Anther
Stamen
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Flower Nomenclature
Pistils-female reproductive parts of the flowerGynoecium-collective term of all female parts
“meaning house of woman”• Stigma-pollen receptive part of the top of the pistil• Style-the slender column of tissue that arises from the
top of the ovary• Ovary-enlarged basal portion of a pistil. It becomes the
fruit• Ovules-the structure that becomes a seed after
fertilization
Receptacle-stem tip bearing all flower parts
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Pistil=Stigma + Style + Ovary
Ovary Stigma
Pistil
Style
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Stigma-stickyOvary-develops into fruitOvule-develops into seed(inside ovary)
Pistil-female flower parts
Style-long tube
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Stamen and Pistil
Ovary Stigma
Pistil
Style
Filament
AntherStamen
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Identify the Flower Parts
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Identify the Flower Parts
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Identify the Flower Parts
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Identify the Flower Parts
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Identify the Flower Parts
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Flower Nomenclature
Solitary flowers-form singly on upright stalksPerianth structural types
(collective term for the calyx and corolla) Inflorescence-a flower made of several floretsFlorets-one of the small flowers that make up the entire
Solitary flowersPeduncle-main supporting stalk of inflorescencePedicels-stalks supporting single flowersBracts-modified or reduced leaves from the axilsAxils-upper angle between a leaf where the flowers
originate
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Flower Nomenclature
Inflorescence patternsSpikeRacemePanicleCorymbCyme
UmbelSpadix
spatheCatkinHead
ray floretsdisc florets
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Spike—unbranched inflorescence form consisting of a main stalk with stemless florets attached along its length liatris, gladiola
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Raceme—an unbranched inflorescence form consisting of a main stalk with florets attached along its length by short pedicels
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Panicle—a loosely branched, pyramidal inflorescence form
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Corymb—a flat-topped, open flower cluster, blooming from the outside edges in
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Cyme—a broad, usually flat-topped inflorescence with center flowers opening first
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Umbel—an inflorescence in the shape of an inverted umbrella having pedicels radiating from one point
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Spadix—a fleshy spike which carries numerous minute flowers embedded on its surface, usually surrounded by a colorful bract called a spathe
Spadix
Spathe
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Catkin—an elongated inflorescence of unisexual flowers on a woody plant
pussy willow, oak, walnut, birch
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Head--a dense inflorescence of small, often stalkless flowers.Ray florets—linear,
petal-like floret attached at the perimeter
Disk florets—tubular flowers found in the center of a composite or daisy-like flower
Disk Florets
Ray Florets
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Leaf Nomenclature
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Leaf parts
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Leaf Shapes
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Leaf Margins
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Leaf Tips & Bases
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Flower Parts Quiz
4. 5.
7.
6.
1.
3.2.
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Examples of Student Activities
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Clay Flower
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