Study Set Content:
are proposed taxonomic divisions containing three group of
non-vascular plants:
Bryophytes
Mosses)
Division bryophyta
Liverworts
Division Hepaticophyta
Hornworts)
Division Anthocerophyta
material nurses used, which has since been experimentally demonstrated to have antiseptic properties
Sphagnum moss(bog or peat moss)
has specialized water-absorbing leaves and has been used as a packing material in the past o It is still widely used as a soil conditioner
Sphagnum Moss
sphagnum
“bandage”
In contrast some bryophytes can withstand long periods of
dessication
The habitats of bryophytes range and elevation from
sea level near ocean beaches up to 5500 or more meters (18,000 or more feet) in mountains
appear annually on bare soil after rings are only 1 to 2 millimeters (0.04 to 0.08inch) tall and can complete their whole life cycle in a few weeks
pygmy mosses
Bryophytes of all phyla often have (blank) associated with their rhizoids. In some instances, the fungi apparently are at least partially parasitic
mycorrhizal fungi
is totally dependent nutritionally on its fungal associate
colorless liverwort that lives underneath mosses
The gametophytes of more advanced plants are completely dependent on their (blank) for their nutrition
sporophytes
sometimes form floating mats over water and keep conditions acid enough to inhibit the growth of bacteria and fungi
peat moss
are found in caves near the entrances and in other dark, damp places.
luminous mosses
The upper surface is of their cells are slightly curved, and each cell functions as a tiny magnifying glass concentrating the dim light on the chloroplasts at the base. This allows photosynthesis to take place in light otherwise too faint for it to occur
luminous mosses
None of the bryophytes have
true Xylem or Phloem
None of the bryophytes have true Xylem or Phloem and to be able to sexually reproduce, all bryophytes must have
external water
special water-conducting cells
hydroids
food conducting-cells called
leptoids
