Lecture 7 Flashcards by Gore Hayer

Q

Gymnosperm Groups

A

Conifers, Cycads, Gingko, gentophytes

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Q

Conifer contains?

A

1-8 Needles in fascicle

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Q

Male Cone Name

A

Micro Strobilus

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Q

Pollination Season

A

Spring

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Q

12 months what grows using what as food?

A

Pollen tube, nuclleus (megasporangium)

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Q

Pollen enters from?

A

Micropyle

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Q

Embryo consume

A

Megagametophyte

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Q

What develops into seed coat

A

Integument

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Q

Conifer families

A

Pinaceae, cupressacease, taxaceae, podocarpaceae, araucariaceae

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Q

Other Conifers

A

firs, larches, spruces, true cedars, cypress, junipers, monkey puzzles

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Q

Firs

A

Abies, Pinaceae. Cones shatter

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Q

Larch

A

Larix, Pinaceae. Deciduous

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Q

Deciduous

A

Lose needles in winter

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Q

Lebanon

A

Cedrus, Pinaceae

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Q

Cypress

A

Cupressus, Cupressaceae

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Q

Juniper

A

Juniperus, Cupressaceae. Cones are fleshy/fused

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Q

Metasequoia

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A

Cupressaceae

Q

Dawn Redwoods

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A

Living fossils

Q

Yews

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A

Taxus, taxaceae. Aril

Q

Aril

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A

Seed covering fleshy/birds

Q

Taxol (Yews)

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A

Breast Cancer Medicine

Q

Podocarpus

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A

Podocarpaceae

Q

Monkey Puzzle

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A

Araucaria, Arucariaceae. South Hemi

Q

Wollemi Pines

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A

Wollemia nobilis, Araucariaceae. Living Fossils

Cycads

Palm like, large ovulate cones, hard leaves, toxic, beetles

Ginkgo

Living Fossils

Ginkgo Separation

Pollen, Ovules

Ginkgo ovules

fleshy

Gingko leaves

fan shaped, deciduous

Gingko height

30m

Similar to Angiosperms

Gnetophytes

Gnetophytes live

Tropic, desert

Gnetophytes similar to angiosperms how?

double fertilization, inflorescences, xylem cells

Epherine comes from? (Gentophyte)

Ephedra

Welwitschia grow? (Gnetophyte)

Two leaves

megagametophyte n

1

megaspore n

1

megasporangium n

2

integument n

2

embryo n

2