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Chapter 21 (Xylem Structure # (Protostele (th), Endarch Protostele…
Chapter 21
Xylem Structure
#
Protostele
Endarch Protostele
Protoexylem
#
Exarch Protostel
Siphonostele
happens later
Diabiontic Life Cycle
Multicellular
Gametophyte
Sporophyte
interpolation
miotically
Algae
Monobiontic
only undergoes meiosis
Early vascular plants
Morphology
Microphylls
lycophylls
wood
Heterospory
Clustered
cones
strobili
Remain homosporous
Rhyniophytes
Early Fossils
Equal Dichotomous Branching
Swollen
multicellular masses
no sporogia
Extant Genera
Forest Plants
ligule
small flap
Vascular cryptogams
#
