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Nonvascular Plants (Bryophyta (sporophyte generation (capsule (outer layer…
Nonvascular Plants
Bryophyta
gametophyte generation
Morphology
gametophores
leafy stems
grow close together
stems are slim
grow from apical meristem
development
protoonema
branched system
filamentous green alga
long chlorophyll cell
begins development
reproduction
antheridia
sperms
archegonia
#
eggs
mosses
ubiquitous
thrive within cities
water transport
hydroids
conduct water
dissolve minerals
cell walls digested
leptoids
resemble sieve cells
elongated and interconnected
rhizoids
trichome-like structures
small, multicellular
penetrate substrate surface
sporophyte generation
foot
small, bulbous tissues
basal cell in archegonium
capsule
simple apical sporangium
outer layer
sterile cells
inner column
sterile cells
seta
stalk
between sporangium and foot
operculum
cap-like lid
separates from sporangium
peristome teeth
respond to humidity
controls spores
calyptra
layer of cells
neck
Metabolism and Ecology
large
protects from short-term fluctuations
Liverworts
#
small plants
Gametophyte Generation
leaf liver worts
#
gametophore
like mosses
two rounded lobes
thallose liverworts
gametophyte phase
spores germinate
establish temporary protonematal
thallus
body with no
roots
stems
leaves
air pores
large
NOT stomata
antheridiophore
#
umbrella shaped
tall stalk
archegoniophores
stalked
radiating fingers
droop down
Sporophyte Generation
elators
single, elongate cells
little variability
structure
#
seta is sensitive
Hornworts
#
Gametophyte Generation
thin gametophore edges
middle 4-5 cells thick
numerous chambers
mucilage when young
ribbon/heart - shaped
archegonia
superficial cells make
do not surround egg
canal
antheridia
grow
sterile cells
change chloroplasts to chromoplasts
enlarge
Sporophyte Generation
not similar to other two
grow differentiate and die
small, thalloid plants
concepts
spermatophytes
have vascular tissue
have seeds
vascular cryptogams
no seeds
have vascular tissue
nonvascular plants
no vascular tissure
no seeds
embryophytes
multicellular sprangia
gametangia
classification
hepatophyta
liverworts
anthoceotophyta
hornworts
byrophyta
#
mosses