Antheridium
= Antheridium
= Antheridia
{synonym}
An <antheridium> is a structure that produces male <gametes> in relevant <plant> and other lineages. In <bryophytes> and many <ferns>, <antheridia> on the <gametophyte> produce motile <sperm>.
A suitable <water> connection allows those <sperm> to reach an <archegonium>. Release and transport of <spores> can occur under different conditions, so efficient <spore dispersal> does not remove the later <water> requirement for <fertilization>.