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Chapter 21: Vascular Plants Without Seeds (The Megaphyll Line of Evolution…
Chapter 21: Vascular Plants Without Seeds
Concepts
dibiontic life cycle
monobiontic
interpolation hypothesis
transformation theory
Early Vascular Plants
Rhyniophytes
equal dichotomes branching
Rhynia
Aglaophyton
Cooksonia
Xylem Structures of Early Vascular Plants
protostele
endarch protostele
exarch protostele
siphonostele
seed plants
Zosterophyllophytes
Zosterophyllum
all extinct
Rebuchia
Crenaticaulis
enations
Asteroxylon
The Microphyll Line of Evolution: Lycophytes
Morphology
Drepanophycus
Baragwanathia
microphylls
Lepidodendron
Sigillaria
Stigmaria
Extant Genera
Lycopodium
ligule
Heterospory
cones
strobili
Lepidostrobus
Lepidophloios
The Megaphyll Line of Evolution: Euphyllophytes
Trimerophytes
overtopping
pseudomonopodial branching
Monilophytes
euphyllophytes
monilophytes
lignophytes
Origin of Megaphylls (Euphylls)
megaphylls
telome theory
plantation
webbing
sporophyll
euphyllophytes
Equisetophytes
horsetails
scouring rushes
sporangiophore
monopodial growth
Ferns
leptosporangiate ferns
leaf trace
leaf gap
sori
Eusporangia
Leptosporagia
Psilotum
Tmesipteris
The Term "Vascular Cryptogams"
ferns and fern allies
vascular tissue
lack seeds
crypto (hidden)
