[het-uh-ros-puh-ruh s, het-er-uh-spawr-uh s, -spohr-]
having more than one kind of spore.
Origin of heterosporous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for heterosporous
Salvinia, sal-vin′i-a, n. a genus of heterosporous ferns—formerly called Rhizocarpe or Pepperworts.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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. Compare homosporous.
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