Germination and development of Pteridophytes.

1. GERMINATION AND DEVELOPMENTGERMINATION AND DEVELOPMENT
OF PTERIDOPHYTESOF PTERIDOPHYTES
Muslima P. Liwalug
MIB 1

3. • 3-10mm long and 2-8
mm wide broad
• green, photosynthetic
structure
• Usually heart or kidney
shaped
• Produces gametes

4. • Small spherical
structures
• produce flagellate
sperm

5. • flask-shaped structure
• produces a single egg
at the bottom,
reached by the sperm
by swimming down
the neck

7. • is a cluster of
sporangia
• form a yellowish or
brownish mass on the
edge or underside of a
fertile frond

8. • Fruit cover
• thin membrane
covering the sorus
• often shrivels away
when spores are ready
to be dispersed

9. • Spore case
• single-celled or many-
celled structure in
which spores are
produced

12. The End.The End. 