Answer:
Cryptogams are seedless plants. The reproductive organs of
members of cryptogams are inconspicuous or hidden. They produce naked embryos
after fertilization that are called spores.
Cryptogams are further divided into thallophytes
(undifferentiated body), Bryophyta (moss plant) and pteridophytes (vascular
cryptogams),
Plants which make seeds and have well-differentiated
reproductive tissues are called phanerogams. In these plants seeds
consists of embryo along with stored food, The stored food serves the purpose
of initial growth of the embryo during germination.
On the basis of presence or absence of naked seeds, these are
divided into two groups
(i) gymnosperms (naked seed) (ii) angiosperms (covered
seed).
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