FLOWER
Flower Anatomy (cont.)
• Stamen
– The male part of a flower
• Filament - stalk like holds up anther
• Anther.- contains pollen which is grain released by
flowers, containing the sperm.
– Staminate = flower with only male parts
Flower Anatomy (cont.)
• Pistil
– The female part of a flower
• Stigma - sticky tissue at its end, receptive to pollen
• Style - rod-shaped middle part holding up stigma
• Ovary - swollen base containing eggs
– Pistillate = flower with only female parts
Once the pollen reaches the stigma, it forms a pollen tube down
through the style to the ovary where sperm is deposited.
Flower Anatomy (cont.)
• Petals
– Colorful leaf like structures that attract pollinators
• Corolla
– Petals fused together
• Sepal
– Green leaf like parts that protect the flower bud/petals
• Calyx
– Sepals fused together
• Receptacle
– Point of attachment of all major flower parts
• Pedicel
– Flower stem
Flower Classification
• Complete
– Has sepals, petals, pistils, and stamens
• Incomplete (CAN BE PERFECT OR IMPERFECT)
– Missing either sepals, petals, pistils and/or
stamens
• Perfect
– Has both pistils and stamens
• Imperfect (ALWAYS INCOMPLETE)
– Missing either pistils or stamens
Monocot VS Dicot Flowers
• Monocots
– Flower parts in multiples of 3
– Male & female parts on SAME plant
– Examples: corn, cucumber, oak
• Dicots
– Flower parts in multiples of 4 or 5
– Male & female parts on SEPARATE
plants
– Examples: soy, kiwi, asparagus
Inflorescences
Inflorescence = cluster of flowers
on the stem
–branching system of the stem
–Main stem = peduncle
–Pedicels that branch from the
peduncle support individual
flowers