- of
hyphae and the lack of ****ual reproduction. They have 2
kinds of
tetrasporangial sori (either the acerosa-type or the pannosa-type).
Gelidiella acerosa...
-
history is a
sequence of
three phases: gametangial,
carposporangial and
tetrasporangial. Two of the
phases are similar. The
plants are
dioecious with ****tangial...
-
decussate stamens in
pairs of 40–70 in a spiral, non-versatile, basifixed,
tetrasporangial, latrorso,
apiculate anthers,
dehiscence along 2
longitudinal valves...
- is ****umed to
follow the
Polysiphonia life cycle, with ****ual and
tetrasporangial generations.
Tetrasporangia formation is also
known to be affected...
-
Polysiphonia it
consists of a
sequence of a gametangial,
carpospoangial and
tetrasporangial phases.[page needed] Male (haploid)
plants (the male gametophytes)...
- sites.
Monecious or
dioecious with conceptacles,
carpospogonia and
tetrasporangial conceptacles forming raised chambers.
Common around Ireland, Great...
- the blades, the
cystocarps as
branches attached to the
veins and the
tetrasporangial sori
occur near the
apices of the
larger bladelets.
Commonly found...
-
rhizoids are
numerous growing from the
pericentral cells.
Gametangial and
tetrasporangial plants are not known.
Reproduction is by
specialized propagules England...
-
narrow lamina and
cystocarp forms near the apex on a
short stalk.
Tetrasporangial bladelets are oval in
shape and up to 4 mm in size.
Growing on rock...
-
release these germinate and
develop into the
gametangial phase. No
tetrasporangial phase is known. (Dixon and
Irvine 1977 p. 148)
However tetraspores...
