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chapter 21 - Coggle Diagram
chapter 21
horsetails
15 extant species
aka scouring rushes
rhyniophytes
fossils
no separate micro/megaspores
vascular cryptogams
ferns and fern allies
enations
outgrowths
lingophytes
woody plants
megaphylls
leaves that evoleved from branches
microphylls
lycophyta
protostele
solid mass of xylem with no pith
sorus
underside of the leaf
leaf gap
small segment of parenchyma
telome theory
megaphyll evolution
ligule
small flap of tissue
