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Chapter 21 (Early Vascular Plants (Cooksonia (Equal Dichotomous Branching,…
Chapter 21
Early Vascular Plants
Cooksonia
Extinct
Equal Dichotomous Branching
Epidermis
Cuticle
Rhyniophytes
Protostele
Small and Narrow Cells
Morphology
Previous Ancestor Similiarity
Heterospory
lycophytes
Clustered
Cones
Strobili
Homosporus
Megaphylls
Smooth Stem
Sporophtye
Vascular Plants
Fossil Plants
Dibiontic Plants
multicellular
Sporophte
Interpolation Hypothesis
Gametophyte
Monobiontic
Zygote
Meiosis
Cannot undergo Mitosis
Transformation Theory
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Larger
More Complex
Trimerophytes
unequal branching
Eusporangia
several surface cells
outer cells develop
Many spores
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Leptosporangia
single surface area
