-
number of
these markings and apertures.
Alete spores show no lines. In
monolete spores,
there is a
single narrow line (laesura) on the spore. Indicating...
-
characteristics that
distinguish the
group include unusually small spores that are
monolete and unornamented. Additionally,
there are
unique strands of
Nostoc (cyanobacteria)...
- the sporangia) or
loose strobili. All
sphenophylls are homosporous, with
monolete or
trilete spores.
Sphenophyllales was
first described by the
British botanist...
-
sporangia from the
axils of
minute bifid,
rounded sporophylls. Bean shaped,
monolete spores are produced. The
spores germinate best in a dark
environment when...
- mark. Most
other medullosaleans produced large ovoid pre-pollen with a
monolete mark, and ****igned to the
genus Schopfipollenites. Most medullosaleans...
-
being 2-5
times pinnate.
Sporangia are
fused into synangia, and
spores are
monolete.
Basal chromosome count is 2n=80. The type
species is M. alata. Marattia...
-
Sporangia have three-rowed,
short to long stalks;
spores are reniform,
monolete,
perine or winged. In 1990, Karl U.
Kramer and
coauthors defined the Dryopteridaceae...
- short.
veins free.
Sporangium stalk 3-rowed.
Annulus vertical.
Spores monolete.[citation needed]
Gymnogrammitis and
Leucostegia were once
included in...
- 2023.
Retrieved 1
December 2023. Balme, B.E.; Hennelly, J.P.F. (1956). "
Monolete,
monocolpate and
alete sporomorphs from
Australian Permian sediments"....
-
paraphyses (minute hairs) with
spherical cells at the tip.
Spores are
monolete,
unlike Antrophyum sensu stricto,
which has
trilete spores. The
genus was...
