- uncommon. Two
consecutive whorls of
dimerous petals are
often mistaken for
tetramerous petals. If all of the
whorls in a
given floral arrangement have the same...
-
Potamogeton and
Paris quadrifolia (herb-paris) are
examples of
monocots with
tetramerous flowers.
Other plants exhibit a
mixture of characteristics. Nymphaeaceae...
-
Tetramerous flower of
Ludwigia octovalvis showing petals and sepals....
- central, non-ornamental,
pentamerous ones, and peripheral, ornamental,
tetramerous ones. The
latter have
sterile pistils with
fertile stamen. The four sepals...
- of each
flower In
threes (flowers are trimerous) In
fours or
fives (
tetramerous or pentamerous)
Number of
furrows or
pores in
pollen One
Three Number...
- gynoecium. The
androecium is obdiplostemonous. Only a few
genera are
tetramerous (Francoa, Tetilla, Melianthus). In some
genera some
stamens (Pelargonium)...
-
dihedral group of
dimension 3, D 3 {\displaystyle D_{3}} .
Eudicots with
tetramerous or
pentamerous petals are
often invariant under rotations by π / 2 {\displaystyle...
-
suggests that the
medusa form
evolved after the polyps.
Medusozoans have
tetramerous symmetry, with
parts in
fours or
multiples of four. The four
major classes...
- the
adult or ****ual phase),
planula larva, polyp, medusa.
Symmetry is
tetramerous, with
parts in
fours or
multiples of four. The
mitochondrial DNA molecules...
-
slight apiculate apex,
cuneate base and a
crenate margin. The
flowers are
tetramerous, or
sometimes pentamerous, with a
white corolla,
possibly marked with...
