Flowers Flashcards
most common plant organ for sexual reproduction
Flower
produce gametes(sex cells)
play a key role in pollination
Flowers
Transfer of pollen from ____ of a flower to the ______ of the same/diff flower
anther
stigma
both stamen&pistil
Perfect flower
Either of stamen&pistil
pistillate or staminate
Imperfect flower
Give examples of Perfect flower
Apple
Cherries
Legumes
Give examples of Imperfect flower
Squash
Corn
Cucumber
male&female are in the same plant but not in the same flower
Monoecious
Called as a single house
Monoecious
Give example of monoecious
Squash(Kalabasa)—-Cucurbita maxima
male and female in separate plants
Dioecious
Called as a double house
Dioecious
Give example of dioecious
Carica papaya
Similarly shaped petals equally spaced
Regular/Actinomorphic flower
One petals are different/whorl
Irregular/Zygomorphic
lack any symmetry
Asymmetric/Amorphic flower
Give the 11 parts of the flower
•Petals
•Receptacle
•Ovule
•Sepal
-Stamen
•Anther
•Filament
-Pistil/Carpel
•Stigma
•Style
•Ovary
Both petals and sepal
Perianth
Male parts
makes pollen grains
Stamen
Pollen bearing
Anther
contain male gametes
Pollen
bears the anther
Filament
Female part
Carpel/Pistil
receptive surface for pollen grains
Stigma
pollen tubes
Style
enlarged base
Contains the ovule
Ovary
carries female gametes
ovule
it became seeds on fertilization
ovule
bears the flral organs
receptacle
leaf-like structure that protects young flower bud
Sepal
large,colorful,scented,producing nectar
Petals
to attract pollinators to the plant
Petal
4 classification of flowers
Complete
Incomplete
Imperfect
Perfect
4 whorls are present
Complete flower
1 whorl is missing
Incomplete flower
4whorls
Sepal
Petals
Stamen
Pistil
3fusion of petals and sepal
Gamopetalous
Polypetalous
Apetalous
Fused petals
Gamopetalous flower
Many and separate petals
Polypetalous
Without petals
Apetalous
3types of plants based on their chracteristics
Monoecious
Dioecious
Polygamous
Bears staminate, pistillate, and hermaphroditic flowers on the same plant
Polygamous
3 types of ovary position
Hypogynous(superior)
Epigynous(inferior)
Perigynous(intermediate)
Other parts are attached below the ovary
Hypogynous
Other parts are attached above the ovary
Epigynous
Sepal, petals, and stamens are fused to form a cup around ovary
Perigynous
3flower arrangement
Actinomorphic(regular)
Zygomorphic(irregular)
Amorphic(asymmetric)
4 non-essential parts of the flower
Penducle
Receptacle
Sepal
Petal
2 essential part of the flowers
Stamen
Carpel/pistil
Collective term for all the stamens present
Androecium
Collective term for all the pistils present
Gynoecium
Collective term for all the sepals present
Calyx
All the petals together
Corolla
Flower stack
Penducle
Part of flowe stall bearing the floral organs, at base of flower
Receptacle
Leaf-like structures at flower base, protects young flower bud
Sepal
1 flower on the stem
Solitary flower
Cluster of flowers on a single flowering branch
Inflorescence
11 types of inflorescence
Catkin
Cyme
Head
Panicle
Corymb
Raceme
Spadix
Spike
Spikelet
Umbel
Vercitil/whorl
Spike-like
Main axid is elongated and unbrached
Catkin
Oldest flower terminates the main axis
Cyme
Do not have pedicels
Grouped together on the top of a penducle
Flattened or rounded
Outer flowers have 1 very large petal
Head
Main axis has branches
Panicle
Main axis elongated and unbranchedvas in a raceme, but the pedicels of the fowers are equal
Appears flat-topped
Corymb
Has unbranched main axis and all the pedicels of the flower are more or less the same length
Raceme
Thickened, fleshy axis
Spadix
Lobg, unbranched main axis which bears flowers which have no pedicels or very short pedicels
Spike
Flowers and inflorescence subtended by specialized bracts
Spikelet
Bears all the pedicels at its apex
Umbel
Flowers are born in a tight circle at each node
Vercitil/Whorl