[6]

Avena

[6v]

61

Ipomoea

well vigorously as was shown by their general appearance and from several of them never reaching the summit, of the rods. In Pot II, one of the self-fertilised plants was for a long time taller by two inches than its opponent, but was ultimately beaten, so that all the crossed plants exceeded their opponents in height. Of twenty-eight pods capsules produced by the crossed plants fertilised by pollen from a distinct plant a distinct plant each contained on an average 4.75 seeds; of twenty-seven self-fertilised pods capsules on the self-fertilised plants, each gave contained on an average 4.47 seeds; so that the ratio of one to the other is proportion of seeds in the crossed and self-fertilised capsules was as 100 to 94.

I planted some of the same seeds, from which the plants in the last Table 5 were raised, were planted, after they had germinated on damp sand, in a square tub, in which a large Brugmansia had long been growing. The soil was extremely poor and full of roots; six crossed seeds were planted, in one corner and six self-fertilised seeds in the opposite corner. All the seedlings from