by: chelsye deboor flowers. important parts of a flower 4 main parts sepal petal pistil (or carpel)...
TRANSCRIPT
By: Chelsye DeBoor
FLOWERS
Important Parts of a Flower
4 main parts SepalPetal Pistil (or carpel)Stamen
SepalsProtect flower while developing from budLook like green little leavesCollectively called CALYX
Petals
Member of COROLLAAll the petals make the corollaBrightly colored part of a flower
Used to attract pollinators
Female Parts: PISTILSits on the receptacleMade of 4 parts:
StigmaStyleOvaryOvule
Female Parts Continued
Stigma Where pollen grains attach to
StyleLong filament structurePrevents pollen contamination
OvaryProtects ovule; becomes fruit
when fertilizedOvule
Becomes seed when fertilized
Male Parts: STAMEN
3 partsAnthersConnectiveFilament
STAMEN continuedAnthers
Produce pollenContains thousands
of pollen grainsPollen contains
male sex cellsFilament
Holds the anthersFine and hair like
Other Flower PartsReceptacle
The part of the flower that holds everything together
Peduncle (pedicel)Stalk of the flower
Types of Flowers
Imperfect Perfect Complete Incomplete
Perfect Flower
Has both Pistil (Female) and Stamen (Male)
Examples: Lilies, Roses, dandelions, wheat, apple,
tomato
Imperfect flowerHas ONLY one type of reproductive
organsSTAMEN OR PISTILS
Requires 2 flowers (1 male, 1 female) to reproduce
Examples:CornCucurbit family
Melons, gourds, cucurbits (cucumbers)
Male vs. Female Corn
Male vs. Female Cucurbit
Complete FlowerHas all 4 parts
Sepals, petals, pistil, stamenAll complete flowers are perfect, but not all perfect flowers are complete. Why???
Complete Flower
Examples:Roses, zinnia
Incomplete FlowerLacks one or more of the 4 partsExamples: Cucurbitaceae family
Melons, gourds, cucurbits (cucumbers)Calla lily
Monoecious2 options:
Plant has perfect flowers (both sexes)Plant has separate male and female flowers
located on the same plant
Examples:Easter Lily, pea, dandelion, rose
DioeciousHas imperfect flowers on separate
plants One plant is male, one plant is female
Need 2 plants to reproduce
Examples:Cucurbitaceae family
Monocot Embryo growth with single cotyledonFlower parts in multiples of 3Major leaf veins run parallelStem vascular bundles scatteredRoots are adventitiousSecondary growth absentPollen with single pore
Dicot Embryo growth with 2 cotyledonsPollen with 3 poresFlower parts with multiples of 4 or 5Stem vascular bundles in a ringRoots develop from radicleSecondary growth presentMajor leaf veins are netted