megaspore

References

Images

Detailed botanical diagram showing various fern gametophytes and related structures, including labeled spores, prothallium forms, archegonia, antheridia, rhizoids, meristems, and developmental stages.

angiosperm life cycle

megaspore: Media

plant anatomy

Images

Detailed botanical diagram showing various fern gametophytes and related structures, including labeled spores, prothallium forms, archegonia, antheridia, rhizoids, meristems, and developmental stages.

fern gametophytes

Fern gametophytes and associated structures.

Drawing by M. Pahl

angiosperm life cycle

angiosperm life cycle

Figure 16: Typical angiosperm life cycle (see text).

Encyclopædia Britannica, Inc.