- soil. In some genera, such as Coenogonium, the
presence of
absence of
prothalli is an
important taxonomic character that is used to help
classify species...
-
gametophytes that are
typically heart shaped and
green in color. The
gametophyte prothalli,
produce motile sperm in the
antheridia and egg
cells in
archegonia on...
- homosporous,
though in the
field horsetail,
smaller spores give rise to male
prothalli. The
spores have four
elaters that act as moisture-sensitive springs,...
-
gametophyte grows. In ferns, the
gametophytes are small, heart-shaped
prothalli that can
often be
found underneath a spore-shedding
adult plant. Bacterial...
- "A Note on the
Cytology of
Psilotum with
Special Reference to
Vascular Prothalli from
Rangitoto Island".
Annals of Botany. 6 (2): 283–292. doi:10.1093/oxfordjournals...
- they
germinate to
produce short, thin, free-living
gametophytes called prothalli that are
typically heart-shaped,
small and
green in color. The gametophytes...
- sporophytes, in turn,
develop from the
fusion of
gametes produced by
mature prothalli. The
synonym Drynaria lends its name to a
certain type of prothallial...
-
unicellular and
colonial algae,
fungal spores,
mosses protonemata, and
prothalli. The
third way is a
permanent whole mount. Two
methods are
usually used...
-
mature at the same time, and the
spores grow into surface-dwelling
green prothalli beset with club-shaped hairs.
There is some
dispute about ranking these...
- the
gametophyte stage this is
typically through regeneration of
fresh prothalli from
older ones, but it can also
occur through gemmae which are more organised...
