Bio 114 gymnosperms

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Last updated 8:08 AM on 6/8/26
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17 Terms

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Gymnosperms

“Naked Seed”

One integument

Dominated 150 MYA

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Cycads

Dioecious species

Strobili

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Cycad pollination

Beetles as first animal pollinators

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Strobili

Cycad cone

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Ginkgo (biloba)

Dioecious but male trees more frequently used

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Gnetophyta (/-phytes)

Mormon tea

Dioecious

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Conifers

Largest tallest and oldest organisms

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Pinus

Evergreen

Fascicles

Northern hemisphere

Monoecious

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modified branches and leaves

scales and bracts

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Umbo

Cone prickles

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fog drip

Redwood precipitation preference

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Orographic effect

Low valleys + high mountains

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Distichous

Common grass phyllotaxy (2d alternating)

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Intercalary maristems

Where grass leaves grow from between nodes

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Integument

protects nucellus

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Megasporocyte

the seed

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microphyle

entrance to nucellus