-
ovule orientation in
flowering plants), amphitropous, campylotropous, or
orthotropous (anatropous are
common and
micropyle is in
downward position and chalazal...
-
consisting of a
peduncle and
helically arranged, up to
about 100 small,
orthotropous but
incurved ovules;
pedicel present;
nucellus largely free." Unlike...
- shapes: the most
common shape is
called anatropous, with a
curved shape.
Orthotropous ovules are
straight with all the
parts of the
ovule lined up in a long...
- both ends are near each other.
Contrast anatropous, campylotropous, and
orthotropous.
amplexicaul With the base
dilated and
clasping the stem,
usually of...
- 1–100 or more per carpel, anatropous, hemianatropous,
amphitropous or
orthotropous,
mostly hemitropous, bitegmic, cr****inucellate,
chalaza with a ring of...
- a
peduncle and up to
eight or nine terminal, sessile,
contiguous and
orthotropous (straight,
upright and with a
micropyle at apex) ovules." The ovules...
- more or less dry, two
ovules per
carpel but one
nearly always aborts,
orthotropous, bitegmic, cr****inucellated, pendulous,
apical to
marginal placentation...
-
capitate or
ligulate (in P. subgen. Ligulistigma) stigma; the
ovule is
orthotropous. The
seeds have
little or no endosperm. The
cotyledons are ovate. Plants...
- Crane; Kaj
Raunsgaard Pedersen (2018). "Tanispermum, a new
genus of hemi-
orthotropous to hemi-anatropous
angiosperm seeds from the
Early Cretaceous of eastern...
