The Bryophytes Flashcards
Are bryophytes vascular?
No, they are non-vascular
Why are mosses important?
- They can inhibit diverse and extreme environments
- For nutrient cycling and retaining nitrogen in soils
What is peat?
Partially decayed organic material used as a source of fuel, and is a reservoir of organic carbon
Sporophyte
Diploid form of the plant body
Gametophyte
Produces haploid gametes in plants
Sporangium
Where meiosis occurs and where spores develop
Antheridia
Where gametes develop in male structures
Archegonia
Where gametes develop in female structures
What are the 6 main traits of bryophytes?
- Dominant in gametophyte phase
- No xylem or phloem
- No roots
- No leaves
- No cuticle
- The sporophyte is dependent on female gametophyte for nutrition
What are sporophytes made up of?
- Foot
-receives nutrients from gametophyte - Seta
-Elongated stalk - Sporangium
-meiosis site
Do liverworts have stomata for gas exchange?
NO
What is the shape of a liverwort?
Liver shaped
Are the male and female gametangia together or separate on a plant?
Separate
What is the liverworts phyla?
Hepatophyta
What is the hornworts phyla?
Anthocerophyta
Are the gametophytes of hornworts horizontal or vertical?
Horizontal
Do hornworts have a seta?
No, only sporangium
