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External reproductive structures: review First, non-flowering plants Moss sporangia Horsetail ( Equisetum ) sporangia Fern sori (clusters of sporangia) Knobcone pine cones (serotinous) Burned cone Juniper “berry” (cone) Cypress ( Cupressus ) cone Flowers and inflorescences,

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External reproductive structures: review

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External reproductive structures review l.jpg

External reproductive structures: review

First, non-flowering plants


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Moss sporangia


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Horsetail (Equisetum) sporangia


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Fern sori (clusters of sporangia)


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Knobcone pine cones (serotinous)


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Burned cone


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Juniper “berry” (cone)


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Cypress (Cupressus) cone


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Flowers and inflorescences,

emphasizing representatives

from prominent California

plant families


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Collective terms for flower parts

Note: this is a perfect flower, i.e., with both male and female parts


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Petals

Stigma

Anther

Filament

Style

Sepal

Ovary

Longitudinal section through Petunia flower


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Simple inflorescence (single flower):

Matilija poppy (Rhomneya coulteri)


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Largest simple (single) flower:Rafflesia


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Branched inflorescence in the Poaceae

(slender wild oats, Avena fatua)


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Disc flowers

Ray flowers

Head inflorescence in the Asteraceae

(Encelia farinosa)


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Stamens (leaflike, many)

Tepals (free, dull-colored)

“Primitive” flower in the Lauraceae

(Umbellularia californica)


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Actinomorphic (radially symmetrical) flower

in the Brassicaceae with 4-petals in shape of cross

(Brassica rapa)


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Zygomorphic (bilaterally symmetrical) flower in

the Orchidaceae (Habenaria sp.)


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Banner

Wing

Keel

Inflorescence in the Fabaceae--individual

flowers with banner, wing, and keel petals

(Lupinus succulentus)


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Headlike-inflorescence in the Lamiaceae

with zygomorphic flowers, exserted stamens

(Salvia leucophylla)


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Monocotyledon flower: 6 (2 X 3) tepals, 6 stamens

(Hesperoyucca whipplei)


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