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Seed Plants I - Coggle Diagram
Seed Plants I
Aneurophytales: contains the more relictual progymnosperms (Aneurophyton, Protopteridium, Proteokalon, Tetraxylopteris, Triloboxylon, and Eospermatopteris)
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Manoxylic Wood: some plants produce this small amount of very soft, spongy, parenchymatous wood
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Gymnosperms: plants with naked ovules; ovules located on flat sporophylls (pine cones) 
Angiosperms: flowering plants with carpals; believed to be sporophylls that form a tube like closed structure
Progymnosperms: third group to evolve from trimerophytes; Now extinct. named because of conifers, cyads, etc.
Archaeopteridales: more derived progymnosperm; trees up to 8.4m tall with abundant wood and secondary phloem
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Micropyle: a hole in the integument that permitted the sperm cells to swim to the egg cells after the megaspore had developed into a megagametophyte and had produced eggs
Pollen Chamber: the space at the top of the megasporagium where the microspores settled (holding area)
Seed Ferns: form a grade rather than a clade; any woody plant with fern like foliage that bore seeds instead of sori on its leaves
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Ovuliferous Scale: forms by axillary bud and its megasporophylls fusing laterally
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