nonvascular plants Flashcards
What are traits of nonvascular plants (3)
no roots
no vascular tissue
don’t absorb water through soil
What are pioneer species?
Plant species that don’t need soil to grow, and can grow on rocks, etc
Why are nonvascular plants vulnerable to dessication?
They have no protection on the leaf surface, requiring a humid environment
How do nonvascular plants get water?
absorbing water on their surface
When do nonvascular plants grow on Guam?
during the wet season
nonvascular plant groups
moss/ bryophyte
liverworts
hornworts
What is the moss peristome?
cap of moss sporophyte that opens when spores are released
what does heterosporous mean?
produces male and female spores
What is protonemata?
developed spores that will become the gametophyte
What is the rhyzoid and its role?
base of the gametophyte
anchors plants, but cannot absorb and transport like roots
5 uses of moss
substrate for growth
absorbs water and keeps soil moist
peat/bog
absorbing liquid during surgery
fuel
What is peat?
moss mass that secretes proteins to make water acidic, preventing bacterial growth and decay and preserves
How is moss recognized? (3)
on non-soil environments
human environments
short
What do liverworts look like?
flat, leafy moss
What generation is dominant in liverworts?
gametophyte
