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70 Cards in this Set
- Front
- Back
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Flowers |
Reprodictive shoot |
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4 organs of flowers |
Carpels Stamen Petal Sepal |
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Carpel |
Contain stigma style ovary |
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Stamen |
Male reproductive organ of flower Produces pollen |
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Parts of stamen |
Anther Filament |
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Petal |
Corolla Inside sepal Most colorful |
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Sepal |
Protects flower bud Calyx |
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Receptacle |
Where flower is attatched |
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Reproductive organs |
Carpel Stamen |
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Stigma |
Captures pollen |
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Pistil |
Single carpel or two or more fused carpels |
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Peduncle |
Flower stalk |
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Floral primordium |
Where flower originates Located at shoot apical or lateral meristem |
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Classification of flowers |
Complete Incompltete |
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Complete |
With all 4 organs |
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Incomplete |
Lacks 1 or more of the 4 organs |
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Flower sexuality |
Perfect Imperfect |
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Perfect flowers |
Contain both male and female organs |
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Imperfect flowers |
Either pistillate or staminate |
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Monoecious |
Plant with both male and female flowers |
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Dioecious |
Plant wither either male or female flowers |
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Androecious |
Only male flowers |
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Gynoecious |
Plant with only female flowers |
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Nature of corolla |
Polypetalous Gamopetalous Apetalous |
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Polypetalous |
Petals are free from one another |
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Gamopetalous |
Petals are united at the COROLLA TUBE |
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Apetalous |
No petals |
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Flower Symmetry |
Assessment of the presence of number of mirror images in plants |
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Types of symmetry |
Actinomorphic Zygomorphic |
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Actinimorphic |
Radial Regular symmetry |
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Zygomorphic |
Bilateral symmetry |
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Types of zygomorphic flowers |
Caesalpinaceous Orchidaceous Papilonaceous |
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Caesalpinnaceous |
Petals are distinct 5 petals |
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Wings of caesalpinaceous flowers |
2 upper lateral petals |
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Banner |
Smallest petal |
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Keel |
2 lower lateral petals |
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Orchidaceous |
3 sepals 3 petals |
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Papilonaceous |
5 petals |
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Bilabate flower |
Means 2 lipped |
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Ovary positions |
Hypogynous Perigynous Epigynous |
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Hypogynous |
Flower with superior ovary Arises level below ovary |
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Perigynous |
Superior ovary Petal and sepal develop as a floral cup |
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Epigynous |
Inferior ovary |
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Placentation |
How ovules are attatched to wall of ovary |
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Types of placentation |
Marginal Axile Basal Parietal Free central Apical |
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Axile |
Ovules born on a central axis
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Basal |
Single ovule at base of ovary |
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Marginal |
Legumes Ovules born along fused margins |
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Parietal |
Ovules on inner surface |
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Free central |
Ovules born on a free central column |
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Flower classification |
Simple Compound |
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Simple flower |
Solitary peduncle |
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Compound flower |
Several flowers in a single bloom |
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Inflorescence |
Aggregate of flowers |
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Parts of inflorescence |
Bract Peduncle |
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Bract |
Subtends as a group of flowers |
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Types of inflorescence |
Spike Raceme Corymb Round umbel Compound umbel Capitulum Panicle Thyrse
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Spike |
Long elongated unbranched inflorescence Sessile flowers |
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Raceme |
Same as spike, with peduncle |
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Corymb |
Flat topped raceme |
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Round umbel |
Flat topped, rounded inflorescence |
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Compound umbel |
Branched umbel |
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Capitulum |
Vertically compressed inflorescence |
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Panicle |
Compound raceme |
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Thyrse |
Mixed inflorescence |
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Flowers of grasses |
(Poaceae) Floret Lemma Palea |
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Floret |
Individual flower of grass |
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Lemma |
Outer larger bract |
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Spikelet |
Group of florets |
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Mechanisms to avoid inbreeding |
Plants produce staminate or pistillate flowers Some have genes for self incompatibility Pollen grains are ineffective in fertilizing the same flower |
