-
microsporophyll has two
basal pollen-producing
pollen sacs. The
pollen is
bisaccate. The seed
cones are
highly modified with the few cone
scales swelling...
-
commonly invoked on the
basis of the
distribution of dis****d
taeniate bisaccate pollen. However, this
category of
pollen is
known to have been produced...
- are anemophilous.
Pollen can be monosaccate, (containing one saccus) or
bisaccate (containing two sacci).
Modern pine, spruce, and
yellowwood trees all...
-
North America. Its
taxonomy is debated, but it may be a
gnetophyte with
bisaccate pollen.
Paleontology portal Tekleva,
Maria V.; Kr****ilov,
Valentin A....
- (Ranunculaceae?)
Mosses (apparently 5 types) Pollen,
mostly Notho****us
Coniferous bisaccate pollen grains,
perhaps Podocarpidites Pollen of the
pollen genus Tricolpites...
- fern and moss spores, projectates,
Wodehouseia edmontonicola,
hinterland bisaccate pollen, and
pollen from trees, shrubs, and herbs.
Concluded on the large...
- the
United States East Coast,
about 60% of the
diverse monosaccate and
bisaccate pollen ****emblages
disappear at the Tr–J boundary,
indicating a major...
-
spirally inserted microsporophylls each with two
basal pollen sacs
producing bisaccate pollen. The
female seed
cones are solitary.
Their peduncles may have small...
-
Formation Genus Species Location Stratigraphic Position Material Notes Images Bisaccate-morph
Indeterminate "Spores and pollen."
Gymnosperm palynomorph. Cerebropollenites...
-
pollen grains supports the idea that they were wind-pollinated, and
their bisaccate wings may have
enabled entry into the seed by a
pollination drop mechanism...
