- Polypompholyx, Tridentaria, and
Pleiochasia are the most
primitive due to
their tricolporate pollen type. List of
Utricularia species Utricularia Silva S.R., Gibson...
- two
whorls and in
numbers equaling or
twice the
number of petals; the
tricolporate pollen is
contained within two
locules of the
anthers that open longitudinally...
-
Campanuloideae (e.g. Symphyandra)
Within the
family pollen grains are
often tricolporate, less
commonly triporate, tricolpate, or pantoporate.
Carpel number is...
-
anthers dorsifixed 0.6-1.0 mm,
filaments 2-4.5 mm.
Pollen in monads,
tricolporate.
Fruits stipitate,
stipe 4–5 mm long, as many as 4 per capitulum, inertly...
- basally, and the
exterior surface bears trichomes. Most
pollen grains are
tricolporate.
Within the
genus Symplocos it may be
placed in the
subgenus Symplocos...
- lobes. The
filaments and
style are
initially green, but turn purple. Its
tricolporate pollen grain is oblate-spheroidal and
rather large (40 x 43.5 μm) with...
- two
whorls and in
numbers equaling or
twice the
number of petals; the
tricolporate pollen is
contained within two
locules of the
anthers that open longitudinally...
- each
terminus of the
equatorial projectates,
making Aquillapollenites tricolporate.
Aquillapollenities was
mostly extinct by the end of the Cretaceous,...
- C.
oreothauma are
slightly smaller than
those of C.
siliqua and are
tricolporate rather than tetracolporate. "Ceratonia oreothauma". GRIN Global. Accessed...
-
tectum layer and are
helianthoid and
triporate rather than
senecioid and
tricolporate as seen in Sinosenecio. Like the
subtribe Tussilagininae, it has polar...
