In the ensuing year both flowers of each pair were invariably
fertilised in the same manner; and the latter experiments alone serve to show
the proportion of flowers which yield berries, when legitimately and
illegitimately fertilised; but for calculating the average number of seeds per
berry I have used those produced during both seasons.
In the long-styled flowers the stigma projects just above the bearded throat of
the corolla, and the anthers are seated some way down the tube. In the short-
styled flowers those organs occupy reversed positions. In this latter form the
fresh pollen-grains are a little larger and more opaque than those of the long-
styled form. The results of my experiments are given in Table 3.21.
TABLE 3.21. Mitchella repens.
Column 1: Nature of the Union.
Column 2: Number of Pairs of Flowers fertilised during the second season.
Column 3: Number of Drupes produced during the second season.
Column 4: Average Number of good Seeds per Drupe in all the Drupes during the
two Seasons.
Long-styled by pollen of short-styled. Legitimate union :
9 : 8 : 4.6.
Long-styled by own-form pollen. Illegitimate union :
8 : 3 : 2.2.
Short-styled by pollen of long-styled. Legitimate union:
8 : 7 : 4.1.
Short-styled by own-form pollen. Illegitimate union :
9 : 0 : 2.0.
The two legitimate unions together :
17 : 15 : 4.
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