It is well known that if pollen of a distinct species be placed on the stigma of a flower, and its own pollen be afterwards, even after a considerable interval of time, placed on the same stigma, its action is so strongly prepotent that it generally annihilates the effect of the foreign pollen;
Oso jakina da honako hau ere, alegia, lore baten estigman espezie diferenteko lore baten polena jartzen bada eta gero, nahikoa denbora pasa ondoren ere, estigma berean bere polena jartzen bada, honen ekintza hain indar handiz nagusitzen dela, non deuseztu egiten duen eskuarki polen arrotzaren ondorena;