1. The Mosses, Liverworts and Hornworts
Bryophytes
The Mosses, Liverworts and Hornworts

3. A Tribute to Moss
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4. Location Water vs Land Algae – mainly aquatic
Moss – damp, shady locations
What challenges do plants have to overcome to live on land?

5. General Characteristics
Non-vascular plants (no pipes)
Transport water by osmosis
Found in moist shady areas
One cell thick leaves;
lack cuticle = more evaporation

6. General Characteristics
Rhizoids – anchor to ground
Rhizome – underground stem
Lack true roots,
do not play a major
role in absorption
Flagellated sperm

7. Bryophytes
3 Main types
Mosses
Liverworts
Hornworts

8. Mosses

9. Liverworts

10. Hornworts

11. Mosses Class Musci: true moss Gametophyte dominant
Male and female usually separate

12. Structure

13. reproduction Similar to algae Asexual: Sexual: Fragmentation
Water transports sperm to egg in moist environment

15. Assignment What are the three groups of bryophytes?
Algae live mainly in the water and mosses live on land. What features do mosses have that have allowed them to do this?
What features do more complex land dwelling plants have that mosses lack?
Are the gametes of bryophytes haploid or diploid? Are the spores of bryophytes haploid or diploid?
Describe the life cycle of a moss. You can draw a labelled diagram if you want.
Is the dominant part of the mosses life cycle spent as a sporophyte or gametophyte?