heterosporous
Americanadjective
adjective
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Producing two types of spores differing in size and sex, the male microspore and the female megaspore, which develop into separate male and female gametophytes. All seed-bearing plants, as well as some ferns and other seedless plants, are heterosporous.
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Compare homosporous
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Example Sentences
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Like all gymnosperms, pines are heterosporous and generate two different types of spores: male microspores and female megaspores.
From Textbooks • Jan. 1, 2015
In contrast, heterosporous plants produce two morphologically different types of spores.
From Textbooks • Apr. 25, 2013
Like all gymnosperms, pines are heterosporous and produce male microspores and female megaspores.
From Textbooks • Apr. 25, 2013
Gymnosperms are heterosporous seed plants that produce naked seeds.
From Textbooks • Apr. 25, 2013
Salvinia, sal-vin′i-a, n. a genus of heterosporous ferns—formerly called Rhizocarpe� or Pepperworts.
From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
