The Different Forms of Flowers on Plants of the Same Species by Charles Darwin
page 48 of 371 (12%)
page 48 of 371 (12%)
|
Column 2: Illegitimate Unions, Judged of by the Proportional Number of Flowers
which produced Capsules. Column 3: Illegitimate Unions, Judged of by the Average Number (or Weight in some cases) of Seeds per Capsule. Primula veris : 69 : 65. Primula elatior : 27 : 75 (Probably too high). Primula vulgaris : 60 : 54 (Perhaps too low). Primula Sinensis : 84 : 63. Primula Sinensis (second trial) : ? : 53. Primula Sinensis (after Hildebrand) : 100 : 42. Primula auricula (Scott) : 80 : 15. Primula Sikkimensis (Scott): 95 : 31. Primula cortusoides (Scott): 74 : 66. Primula involucrata (Scott): 72 : 48. Primula farinosa (Scott): 71 : 44. Average of the nine species : 88.4 : 61.8. The fertility of the long-and short-styled plants of the above species of Primula, when the two forms are fertilised legitimately, and illegitimately with |
|