Ipomoea purpurea—fifth generation:
6 : 82.54 : 6 : 62.33 : 75.
Ipomoea purpurea—sixth generation:
6 : 87.50 : 6 : 63.16 : 72.
Ipomoea purpurea—seventh generation:
9 : 83.94 : 9 : 68.25 : 81.
Ipomoea purpurea—eighth generation:
8 : 113.25 : 8 : 96.65 : 85.
Ipomoea purpurea—ninth generation:
14 : 81.39 : 14 : 64.07 : 79.
Ipomoea purpurea—tenth generation:
5 : 93.70 : 5 : 50.40 : 54.
Ipomoea purpurea—Number and average height of all the plants of the ten
generations:
73 : 85.84 : 73 : 66.02 : 77.
Mimulus luteus—three first generations, before the new and taller
self-fertilised variety appeared:
10 : 8.19 : 10 : 5.29 : 65.
Digitalis purpurea:
16 : 51.33 : 8 : 35.87 : 70.
Calceolaria—(common greenhouse variety):
1 : 19.50 : 1 : 15.00 : 77.