• Darwin Archive | 'Cross and self fertilisation': portfolios, 1840s-1876 | 'Cross and self fertilisation': experimental results, continued | 'Cross and self fertilisation': experimental results, continued | Tobacco in greenhouse / Nicotiana tabacum / 12 flowers crossed gave 10 pods, 1867-01-01 - 1871-12-31 | Tobacco in greenhouse / Nicotiana tabacum / 12 flowers crossed gave 10 pods, 1867-01-01 - 1871-12-31

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