Slide 1 : Anthoceros Its exceptional feature is presence of blue green alga Nostoc in ventral side of its thallus. Sterile spore mother cells form pseudoelaters for spore dispersal. Examples of hornworts
Slide 2 : A Moss Life Cycle
Slide 3 : Alternation of Generations in Plants
Slide 4 : Homospory
Slide 5 : Sphagnum, peat or bog or cotton moss is considered economically most important
Most economically important BRYOPHYTE because
it is used as FUEL
it is used as Moisture preservent
it has germicidal properties
It provides paraffin and Peat Tar SPECIAL BRYOPHYTES Sphagnum
Slide 6 : LINDOW man in PEAT MOSS The most intensively studied of these bog people is Lindow man, a
fellow who lived about the time of Aristotle.
The preserved stomach content of Lindow man and household contents
showed that his last meal was barley and items of the 2,000-year-old
civilizations.
Slide 7 : Ernest Hackel Coined the term "Vascular Cryptogams“
"Primitive tracheophytes"
Plants without Seeds: From Sea to Land : During the Devonian, the lycophytes (club mosses) and pteridophytes (horsetails
and ferns) appeared.
They formed ancient forests as seen here
They thus contributed to todays coal and petroleum
Amphibians and insects were also arriving on land. Plants without Seeds: From Sea to Land
Ancestral pteridophytes : Rhyniophytes (Silurian) had
dichotomous branching, but
lacked leaves and roots.
They were anchored by
rhizomes (horizontal
portions
of stem) and rhizoids
(water- absorbing filaments).
It had protostele
Rhynia was discovered from
Rhynichert beds in
SCOTLAND
by Mackie Ancestral pteridophytes
Slide 10 : Pteridophytes (lycophytes and pterophytes) CLUB MOSSES..LYCOPODOPHYTA WHISK FERNS..PSILOTOPHYTA HORSE TAILS..SPHENOPHYTA FERNS..FILICINOPHYTA
Slide 11 : Homospory
Slide 12 : Heterospory
Sori on undersurface of Dryopteris : Sori on undersurface of Dryopteris