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Red Cabbage

circumnutation of stem in dark, traced on Horizontal glass, from 9° 15' am November 10' to 8° 30' a.m. Nov. 11th

Nov. 10th (Diagram M.)

(reduced to 1/2 scale no lettering)

(Fig. 9.)

Fig 7 1/2 scale

Filament fixed transversely to [illeg] across the summit of hypoct, = observed this from 9° 15 a. to 8° 30' a m. the following morning— Tracing m on Horizontal glass here reduced to 1/2 origin scale

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Chapter 0 9

pollen had accidently fallen on their on their stigma ⊙. Besides the above seven plants, four others were kept covered under the same larger net; and some of these produced here and there in the most capricious manner little groups of capsules; and this makes me believe that a bee, many of which attracted by the odour settled on the outside of the net, had on some one occasion found an entrance, and had intercrossed a few of the flowers.

In the spring of 1869 four fresh plants were carefully protected under separate nets; and now the result was widely different to what it was before. Three of these covered plants became actually loaded with capsules, especially during the early part of the summer; and this fact indicates that temperature produces some effect, but the experiment given in the next following paragraph shows that the innate constitution of the plant is a far more important element. The fourth plant produced only a few capsules, many of them of small size; yet it was far more self-fertile than any of the seven plants tried last year. The flowers on four small branches of this semi-sterile self plant were smeared with pollen (head on)

[Cross and self fertilisation, pp. 337-8: "There were altogether seven such capsules; but as they were all seated close to the artificially crossed flowers, I can hardly doubt that a few grains of foreign pollen had accidentally fallen on their stigmas. Besides the above seven plants, four others were kept covered under the same large net; and some of these produced here and there in the most capricious manner little groups of capsules; and this makes me believe that a bee, many of which settled on the outside of the net, being attracted by the odour, had on some one occasion found an entrance, and had intercrossed a few of the flowers.
In the spring of 1869 four plants raised from fresh seeds were carefully protected under separate nets; and now the result was widely different to what it was before. Three of these protected plants became actually loaded with capsules, especially during the early part of the summer; and this fact indicates that temperature produces some effect, but the experiment given in the following paragraph shows that the innate constitution of the plant is a far more important element. The fourth plant produced only a few capsules, many of them of small size; yet it was far more self-fertile than any of the seven plants tried during the previous year. The flowers on four small branches of this semi-self-sterile plant were smeared with pollen from one of the other plants, and they all produced fine capsules."]