-
given the
right conditions, into the
gametophyte stage, the
prothallus. The
prothallus develops independently for
several w****s; it
grows **** organs...
-
Prothallus: A green,
photosynthetic structure that is one cell thick,
usually heart or
kidney shaped, 3–10 mm long and 2–8 mm broad. The
prothallus produces...
- non-thallophyte
plants – clubmosses, horsetails, and
ferns is
termed "
prothallus".
Homothallism Heterothallism Wengania Haupt,
Arthur W. (1953). Plant...
- and grow into a
rather incon****uous
plant body
called a
prothallus. The
haploid prothallus does not
resemble the sporophyte, and as such
ferns and their...
-
independent sporophytes.
Young fern
sporelings can
often be
found with the
prothallus gametophyte still attached at the base of
their fronds.
Conidium (mitospore)...
-
produces spores) is
followed by a
haploid generation (the
gametophyte or
prothallus,
which produces gametes).
Pteridophytes differ from
bryophytes in that...
-
millimetres (0.055 to 0.079 in) in
diameter and
round to angular. The
prothallus is
black and
often not distinct. The
medulla is white.
Rhizocarpon macrosporum...
- pale
green to
white areoles (up to 0.4 mm in diameter) and a thin,
white prothallus.
Isidia are frequent,
cylindrical to flask-shaped (lageniform), with dimensions...
- one
gamete after the
fertilization of the egg. 2. (gymnosperms) The
prothallus within the
embryo sac.
endospory The
production of
spores that germinate...
-
products known as
thysanophora unknowns, and the con****uous white,
fibrous prothallus that
encircles the thallus. The
species was
first formally described as...
