BIOG162 - Module 19 Bryophytes

Covers the bryophyte plants

bryophytes

are the first plants, nonvascular, and lack true vessels for conducting fluids

bryophyta division

mosses

hepaticophyta division

liverworts

anthocerophyta

hornworts

how do bryophytes get water?

rely on direct contact with moisture

rhizoid

root-like structure that anchors the plant down

bryophyte asexual reproduction

reproduce via fragmentation

bryophyte sexual reproduction

gametangia keep the gametes from drying out, antheridia and archegonia store sperm and eggs respectively, the sperm must be able to swim to the egg

gametophyte generation

the dominant generation in bryophytes

how does the sporophyte form?

grows out of the gametophyte

capsule

in bryophytes, contain the spores

operculum

“cap” structure that will pop off so spores can be released

protonema

grows from spores into the gametophyte generation

peristome

gradually releases spores

brood body

break away from the main body in mosses

gemme

break away from the main body in liverworts