- A
sporangium (from Late Latin, from
Ancient Gr**** σπορά (sporá) 'seed' and ἀγγεῖον (angeîon) 'vessel'); pl.: sporangia) is an
enclosure in
which spores...
- integument,
forming its
outer layer, the
nucellus (or
remnant of the
megasporangium), and the
female gametophyte (formed from a
haploid megaspore) in its...
- The
megaspore mother cell
arises within the
megasporangium tissue. In
flowering plants the
megasporangium is also
called the nucellus, and the female...
- and
radially symmetrical, is an
integumented megasporangium surrounded by a cu****. The
megasporangium bears an
unopened distal extension protruding...
-
symmetrical megasporangium surrounded by a cu****. The
megasporangium has a
multilobed integument, and
there is an
extension on the
megasporangium that suggests...
-
consists of a stalked,
integumented megasporangium (also
called the nucellus). Typically, one cell in the
megasporangium undergoes meiosis resulting in one...
-
typically consist of four
microsporangia and an
ovule is an
integumented megasporangium. Both
types of
spores develop into
gametophytes inside sporangia. As...
- (ovules) each of
which produces a
megaspore which develops inside the
megasporangium to
produce the megagametophyte. In
other plants, such as hazel, some...
- sporophyte, a
condition known as endospory.
Seeds consist of an
endosporic megasporangium surrounded by one or two
sheathing layers (integuments). The
young sporophyte...
- to the two kind of
spores from
within separate sporangia,
either a
megasporangium that
produces megaspores or a
microsporangium that
produces microspores...
