-
Tetraspores are red
algae spores produced by the
tetrasporophytic (diploid)
phase in the life
history of
algae in the
Rhodophyta as a
result of meiosis...
-
exhibit three patterns of megasporogenesis: monosporic, bisporic, and
tetrasporic, also
known as the
Polygonum type, the
Alisma type, and the
Drusa type...
- "Morphological, genetic, and
interfertility analyses reveal a novel,
tetrasporic variety of
Agaricus bisporus from the
Sonoran Desert of California"....
-
number of
megaspores developing, as
either monosporic, bisporic, or
tetrasporic. [citation needed](RF)
Gynoecium Ovum
Alternation of
generations Meiosis...
-
monosporic embryo sac formation,
while all
members of
Anthemis have
tetrasporic embryo sac.
Anthemis and
Chamaemelum have some
differences in
fruit and...
- multicellular. The
species shows an
alternation of
generations with both
tetrasporic and
gametophytic stages. It is
found in the
North Atlantic and has been...
- megasporangium. The
embryo sac (megagametophyte)
varies by genera, but is
mainly tetrasporic (e.g. Fritillaria).
Embryo sacs in
which three of the four megaspores...
- boreholes,
which are
caused by a copepods.
Organisms can be male, female,
tetrasporic, or
possess no
reproductive structures.
Males possess white oval-shaped...
-
other things, the
herbaceous habit,
gynobasic style,
unusual type of
tetrasporic embryo sac and
basal parietal placentation of the unitegmic, tenuinucellate...
- integument,
while the
nucellus is small. The
embryo sac or
megagametophyte is
tetrasporic, in
which all four
megaspores survive. The
style is
trilobate to trifid...
