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Seed Plants download (Division Coniferophyta: Conifers # # # # (leaves…
Seed Plants
Division Progymnospermophyta: Progymnosperms #
progymnosperms, a third group to evolve from trimerophytes thats extinct
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Evolution of Seeds
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micropyle, a hole in the integument that permit sperm to swim to egg
pollen chamber, holding area
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Division Coniferophyta: Conifers # # # #
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leaves are simple, with one or two llong veins running down the center
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compound cones, a shoot with axilary buds
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Division Cycadophyta: Cycads # #
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Division Ginkgophyta:
Division Gnetophyta #