But one of these five varieties, when used either as the father or mother, and crossed with the Nicotiana glutinosa, always yielded hybrids not so sterile as those which were produced from the four other varieties when crossed with N. glutinosa.
Baina bost aldakiotako batek, aita zein ama izanik Nicotiana glutinosa-rekin gurutzatzean, beti eman zituen beste lau aldakiek N. glutinosa-rekin gurutzatzean sorturikoak bezain antzuak ez ziren hibridoak.