- 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...
-
Tetramerous flower of
Ludwigia octovalvis showing petals and sepals...
-
Potamogeton and
Paris quadrifolia (herb-paris) are
examples of
monocots with
tetramerous flowers.
Other plants exhibit a
mixture of characteristics. Nymphaeaceae...
- central, non-ornamental,
pentamerous ones, and peripheral, ornamental,
tetramerous ones. The
latter have
sterile pistils with
fertile stamen. The four sepals...
- gynoecium. The
androecium is obdiplostemonous. Only a few
genera are
tetramerous (Francoa, Tetilla, Melianthus). In some
genera some
stamens (Pelargonium)...
-
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...
- 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...
- the
adult or ****ual phase),
planula larva, polyp, medusa.
Symmetry is
tetramerous, with
parts in
fours or
multiples of four. The
mitochondrial DNA molecules...
- to
locate the flowers. In the
middle of the
inflorescence the tubular,
tetramerous flowers,
about twenty in number, form a
discoid circle (or flat umbel)...
-
respect to flowers, five
parts in each whorl. See also
trimerous and
tetramerous. pepo A type of
berry formed from an
inferior ovary and
containing many...
