With several kinds this is effected by the pollen-grains, which are light and incoherent, being blown by the wind through mere chance on to the stigma; and this is the simplest plan which can well be conceived.
Hainbat klasetan polen aleak, arin eta loka izaki, haizeak, kasualitate hutsez, estigmara eramanez gauzatzen da ernalkuntza; eta hau burura daitekeen biderik xumeena da.