The two lots were
allowed to germinate on sand, and pairs were planted on the opposite
sides of four pots. When nearly two-thirds grown they were measured, as
shown in Table 4/44.
TABLE 4/44. Delphinium consolida.
Heights of plants measured in inches.
Column 1: Number (Name) of Pot.
Column 2: Crossed Plants.
Column 3: Self-fertilised Plants.
Pot 1 : 11 : 11.
Pot 2 : 19 : 16 2/8.
Pot 2 : 16 2/8 : 11 4/8.
Pot 3 : 26 : 22.
Pot 4 : 9 4/8 : 8 2/8.
Pot 4 : 8 : 6 4/8.
Total : 89.75 : 75.50.
The six crossed plants here average 14.95, and the six self-fertilised
12.50 inches in height; or as 100 to 84. When fully grown they were
again measured, but from want of time only a single plant on each side
was measured; so that I have thought it best to give the earlier
measurements. At the later period the three tallest crossed plants still
exceeded considerably in height the three tallest self-fertilised, but
not in quite so great a degree as before. The pots were left uncovered
in the greenhouse, but whether the flowers were intercrossed by bees or
self-fertilised I do not know. The six crossed plants produced 282
mature and immature capsules, whilst the six self-fertilised plants
produced only 159; or as 100 to 56. So that the crossed plants were very
much more productive than the self-fertilised.
11. CARYOPHYLLACEAE.
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