• Darwin Archive | 'Cross and self fertilisation': portfolios, 1840s-1876 | 'Cross and self fertilisation': experimental results, [1840s]-1875 | A crossed pea Maple X Purple-podded from Mr Laxton has grown in poor soil 9ft 8 inches in height - Tallest purple-pod is only 5ft 10 inches, 1867-08-19 | A crossed pea Maple X Purple-podded from Mr Laxton has grown in poor soil 9ft 8 inches in height - Tallest purple-pod is only 5ft 10 inches, 1867-08-19

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