UNISEXUAL • FREE TRANSLATOR.ORG • Definition of Unisexual

... Species,' however, I have given a short abstract of the reasons which induce me to believe that all organic beings occasionally cross, though perhaps in some cases only at long intervals of time.[192] I will here just recall the fact that many plants, though hermaphrodite in structure, are unisexual in function;—such as those called by C. K. Sprengel dichogamous, in which the pollen and stigma of the same flower are matured at different periods; or those called by me reciprocally dimorphic, in which the flower's ...

— The Variation of Animals and Plants Under Domestication, Volume II (of 2) • Charles Darwin