mib1 - pteridophytes
Post on 05-Aug-2015
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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.
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