Loading....
Coupon Accepted Successfully!

 

Summary

  • For the classification of plants several systems were proposed from time to time.
  • Linnaeus divided flowering plants into 23 classes starting with the class Monandria with a single stamen (Canna) and plants with twenty or more stamens were assigned to class Icosandria.
  • Linnaeus also included all non-flowering plants such as algae, fungi, lichens, mosses and ferns in a separate class called Cryptogamia.
  • Algae and fungi are considered together in Thallophyta.
  • Bryophytes consist of mosses, liverworts, and hornworts.
  • The gametophytes of bryophytes are green and manufacture their own food.
  • Bryophytes can settle where lichens have begun to convert bare rock surfaces to small patches of soil, and by their metabolism and decay contribute to a further transformation of rock to soil.
  • The gametophytes of bryophytes are green and manufacture their own food.
  • Mosses can be found almost anywhere on earth.
  • Sporangium is the end product of sexual reproduction.
  • Heterospory occurs only in vascular plants.
  • In Pinus, the megagametophytes differentiate within the protective tissues of the parent sporophyte.




Test Your Skills Now!
Take a Quiz now
Reviewer Name