GERMINATION AND DEVELOPMENT GERMINATION AND DEVELOPMENT OF PTERIDOPHYTESOF PTERIDOPHYTES

Muslima P. LiwalugMIB 1

• 3-10mm long and 2-8 mm wide broad

• green, photosynthetic structure

• Usually heart or kidney shaped

• Produces gametes

• Small spherical structures

• produce flagellate sperm

• flask-shaped structure

• produces a single egg at the bottom, reached by the sperm by swimming down the neck

• is a cluster of sporangia

• form a yellowish or brownish mass on the edge or underside of a fertile frond

• Fruit cover

• thin membrane covering the sorus

• often shrivels away when spores are ready to be dispersed

• Spore case

• single-celled or many-celled structure in which spores are produced

The End. The End.