- A
microsporangium (pl. microsporangia) is a
sporangium that
produces microspores that give rise to male
gametophytes when they germinate. Microsporangia...
- side of the anther. A
pollen grain develops from a
microspore in the
microsporangium and
contains the male gametophyte. The size of
anthers differs greatly...
- heterosporous,
having two
spore types,
microspores (male)
produced in
microsporangium and
megaspores (female)
produced in
megasporangium that are typically...
- the
stigma of
another flower on the same
flowering plant, or from
microsporangium to
ovule within a
single (monoecious) gymnosperm. Some
plants have...
-
which provides nutrition for
growing spores . The
innermost wall of
microsporangium Tapetum lucidum, a
reflective tissue layer ****ociated with the retina...
- microsporangia, or
pollen sacs, of the
anthers on the stamens. Each
microsporangium contains diploid microspore mother cells, or microsporocytes. Each...
-
separate sporangia,
either a
megasporangium that
produces megaspores or a
microsporangium that
produces microspores. In
flowering plants,
these sporangia occur...
-
producing large spores that
contain the
female gametophytes.
Compare microsporangium.
megaspore the
larger of two
kinds of
spores produced by a heterosporous...
-
germination of the
pollen grain may
begin even
before it
leaves the
microsporangium, with the
generative cell
forming the two
sperm cells.
Except in the...
-
produces one or more microsporangia.
Microspores develop within the
microsporangium by meiosis. In a
willow (like all seed plants) the
zygote first develops...
