Study Set Content:
(WHISK FERNS)
Division Psilophyta
GROUND PINES, SPIKE MOSSES, AND QUILLWORTS
Division Lycophyta
EQUISETUM)
Division Arthrophyta
CRYPTOGRAMS
Division Pteridophyta
do not have any flowers or seeds.
Division Pteridophyta (Cryptograms
first terrestrial vascular plants, showing the presence of vascular tissue, xylem, and phloem.
Division Pteridophyta (Cryptograms)
Pteridophytes display
differentiation
The main plant body of cryptograms
saprophyte
small leaves called as the
microphylls
Reproduction in Pteridophytes
True alternation of generations
These gametophytes are free-living, multicellular, and photosynthetic. They are called as the
prothallus.
For this very reason, the growth of pteridophytes is confined to certain
geographical areas.
CRYPTOGRAMS male sex organs are called the
antheridia
CRYPTOGRAMS female sex organs are called the
archegonia
Cryptograms The male gametes are called the
antherozoids
The male gametes are called the antherozoids, which are released by the
antheridia
Antherozoids can get transferred to the archegonia which are the female sex organs, only in the presence of
water
When the spores of the plants are similar then these plants are called
homosporous plants.
are the ones that have two different kinds of spores
Heterosporous plants
Heterosporous plants are the ones that have two different kinds of spores. They are the
megaspores and the microspores
