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Incoming links: Gametophyte
Angiosperm female gametophyte 2026-10-14
The gametophyte inside an angiosperm's ovule, containing an ovum and, in the common arrangement, a central biological cell with two polar cell nuclei.[ref]
Biology 2e by Mary Ann Clark and others. Biology 2e, §32.1 Female Gametophyte (The Embryo Sac), Figure 32.8; species variation is explicitly noted
Gametophyte 2026-10-14
The plant life-cycle generation that produces gametes. In an angiosperm, male gametophytes are pollen grains and the female gametophyte is the embryo sac.
Pollen Created 2026-10-14 Updated 2026-10-14
An angiosperm pollen grain is a small male gametophyte, not itself a seed or a single gamete. Its tube-forming biological cell supports delivery of sperm.[ref]
Observing the growth of pollen tubes (Practical Biology). Teaching notes: pollen grain and tube as male gametophyte