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vascular plants w/o seeds, zygote, lateral sporangia, euphyllophytes -…
vascular plants w/o seeds
vascular cryptograms
"fern allies"
vascular tissue
lack
seeds
flowers
fruits
reproduction is hidden
synapomorphies
shared derived features
ancestral
no lacking
heterotrophically
endophytic soil
fungi nourishes
antheridia
archegonia
egg
zygote
retained in archegonium
nourished by parent
grows
enlarges
abscission zone
detaches from gametophyte
independent
concepts
dibiontic life cycle
extant plants
fossil plants
multicellular gametophyte
multicellular sporophyte
interpolation hypothesis
postulates
small sporophyte
mitotically not meiotically
zygote germinated
monobiontic
algae, Coleochaete
one multicellular generation
zygote
#
meiosis
more spores
new gametophytes
embryophytes
evolution
conversion
monobiotic ancestor
diobiontic plants
transformation theory
postualtes after dibontic
gametophyte larger
sporophyte larger
more complex
vascularized
interpolation theory
microphyll
lycophytes
homosporous
heterosporous
#
megaphyll
euphyllophytes
microphyll; lycophytes
distinct evolution
morphology
genera Drepanophycus
genera Baragwanathia
4cm enations
single trace
vascular tissue
early land plants
lateral sporangia
#
exarch protosteles
heterospory
clustered sporangia
cones
strombulli
homosporous
heterosporous
microspores
megaspores
distinct microgametophytes
early lycophyte
microphylls to enations
exant genera
Lycopodium cernuum
common
extensive rhizomes
chlorophyllous shoot
Lycopodium obscurum
sporangia clusters
cones
megaphyll
trimerophytes
1968
3 genera
Trimerophyton
Psilophyton
Pertica
fossils resemble rhyniophytes
terminal sporangia
lateral sporangia
Pertica quadrifaria
one main trunk
small branches
larger stems
branched pseudomonopodially
euphyllophytes
#
#
exarch xylem roots
30-kilo base inversion
single copy
plastid DNA
ferns
Leptosporangiatae
Marattiales
Ophioglossales
over tops the other
smaller
lateral
one plane
chlorophyll webs
zygote
lateral sporangia
euphyllophytes
