A taxonomic group of plants or fungi that produce two different types of spores, typically large female megaspores and smaller male microspores.
From 'hetero-' (different) + 'spore' (Greek 'spora,' seed) + '-ae' (botanical plural suffix). Describes the reproductive strategy that evolved in advanced plants like seed plants and ferns.
Heterosporeae plants invented a brilliant strategy—by making two spore types, they could specialize one for floating and spreading, and one for sexual reproduction!
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