Monday, April 5, 2010

GYMNOSPERMS


  • Kingdom : Plantae
  • Division :
Ginkgo biloba
Cycadophyta
Coniferophyta
Gnetophyta
  • Woody plant
  • Produce seeds but the seeds are not enclosed inside an ovary
  • Unlike angiosperms, gymnosperm seeds are more exposed
  • No fruits or flower
  • More than half are tree, most of the rest are shrubs
  • Significance :
(i) Provide food and habitat for
(ii) Prevent soil erosion
(iii) Reduce greenhouse gases
(iv) Paper industry, resins, turpentine
  • Eg : pines, conifer, spruce
gymnosperm(cycad)

gymnosperm(cycad)

gymnosperm-gingko biloba
gymnosperm-gingko biloba

pines gymnosperms

pines gymnosperms

No comments:

Post a Comment