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Darwin, Charles, 1809-1882

"The Different Forms of Flowers on Plants of the Same Species"

23.5, is the more fertile of the two self-unions.
TABLE 4.24. Lythrum salicaria, mid-styled form.
TABLE 4.24.1. Legitimate union.
12 flowers fertilised by the mid-length stamens of the long-styled. These
stamens equal in length the pistil of the mid-styled.
Product of good seed in each capsule.
138 122
149 50
147 151
109 119
133 138
144 0
-
92 percent of these flowers (probably 100 per cent) yielded capsules. Each
capsule contained, on an average, 127.3 seeds.
TABLE 4.24.2. Legitimate union.
12 flowers fertilised by the mid-length stamens of the short-styled. These
stamens equal in length the pistil of the mid-styled.
Product of good seed in each capsule.
112 109
130 143
143 124
100 145
33 12
- 141
104
100 percent of these flowers yielded capsules. Each capsule contained, on an
average, 108.0 seeds; or, excluding capsules with less than 20 seeds, the
average is 116.7 seeds.
TABLE 4.24.3. Illegitimate union.
13 flowers fertilised by the shortest stamens of the long-styled.
83 12
0 19
0 85 seeds small and poor.
- 0
44 0
44 0
45 0
54 percent of these flowers yielded capsules. Each capsule contained, on an
average, 47.4 seeds; or, excluding capsules with less than 20 seeds, the average
is 60.


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