a.1.(Bot.) Producing two kinds of spores unlike each other.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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pistillata is the type of species of the Gigartina genus [40, 41]; despite possessing an isomorphic triphasic lifecycle [42], it shows heterosporic thalli (i.e., producing both tetraspores and carpospores) [43, 44], which were found in all studied samples.
pistillata (Table 1) was found in a sample of female gametophytes, with 59.7% of dry weight in late spring; a sample of heterosporic thalli presented the minimum value in late autumn, with 22.7% of dry weight.
Dias, "Optical and electron microscope study of heterosporic thalli (carpospores/tetraspores) in Gigartina pistillata (Gmel.) Stackh.