Page 144 - Ultimate Visual Dictionary (DK)

PLANTS

Flowers 2 COMPOUND INFLORESCENCE
(CAPITULUM)
Sunflower
(Helianthus annulus)
Disk florets

Ray floret

Sterile ray floret to
attract pollinating
insects
Florets (small
Florets with
flowers) are grouped
anthers ready
Outer Two-lobed together to resemble
to shed pollen
fertilized stigma a single large flower
floret Inner, immature
Pollen
Style Anther florets
Corolla
tube
(fused
Pappus petals)
(modified Corolla tube (fused petals)
sepal) Ovary
Ovary
FLORETS FROM SUNFLOWER

Pollen
Anther Ray floret
Nectar Disk floret

Stigma
Style

Ovary
Corolla tube
(fused petals)
Pappus
(modified
Bract sepal)
(leaflike structure) Domed receptacle
(flattened top of
Hair inflorescence stalk)
Pith

Epidermis
(outer layer Peduncle
LONGITUDINAL SECTION THROUGH of cells) (inflorescence
SUNFLOWER INFLORESCENCE of peduncle stalk)
(inflorescence
stalk)

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