Meaning & use
Heterosporous
Last updated
Producing two distinct sizes or types of spores, typically a larger megaspore and a smaller microspore.
See it in a sentence
Heterosporous ferns like Selaginella produce separate male and female spores.
Seed plants evolved from heterosporous ancestors, with the megaspore eventually becoming retained within the parent plant.
A note on using this word
A key concept in plant evolution: heterospory is considered an evolutionary step toward the development of seeds.
Words with an opposite meaning
homosporous
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