[90]

Arched Hypocot. stem of Red Cabbage beneath ground─ Tracing magnified about 50 times. Feb 5-7th (not tied)

Fig 2 1/2 scale

Fig 3 (1/2 scale)

(Reduced to 1/2 scale no lettering)

[91]

Arched Hypocot. stem of Red Cabbage Red Cabbage beneath ground. Further Plant — with Earth pressed down over the seed with its Cotyledon

Feb. 5-7. magnified about 25 times

Further Plant not worth engraving

[92v]

51 507

Ch 9

flowers fertilised with pollen from a distinct plant, & from flowers fertilised with their own pollen were weighed, but only in sixteen cases. Their relative weight are given in the following list; that of the seeds from the crossed flowers being taken as 100.

Ipomoea purpurea (1st generation parent-plants): as 100 to 127.

─ ─ (third generation) ─ 87.

Salvia coccinea ─ 100.

Brassica oleracea ─ 103.

Iberis umbellata (2d generation) ─ 136.

Delphinium consolida ─ 45.

Hibiscus africanus ─ 105.

x Tropaeolum minus ─ 115.

Lathyrus odoratus (about)─ as 100 to 100.

Sarothamnus scoparius ─ 88.

Specularia speculum ─ 86.

Nemophila insignis ─ 105.

Borago officinalis ─ 111.

Cyclamen persicum (about) ─ (about) 50.

Fagopyrum esculentum ─ 82.

Canna warscewiczi (3 generations) ─ 102.

It is remarkable that in ten out of these sixteen cases the self-fertilised seeds were either superior to or equal to the crossed in weight; nevertheless in six out of the ten cases (viz [text excised]

[Cross and self fertilisation, p. 352: "Relative Weight and Period of Germination of Seeds from crossed and self-fertilised Flowers.—An equal number of seeds from flowers fertilised with pollen from another plant, and from flowers fertilised with their own pollen, were weighed, but only in sixteen cases. Their relative weights are given in the following list; that of the seeds from the crossed flowers being taken as 100.

Ipomoea purpurea (parent plants): as 100 to 127.

Ipomoea purpurea (third generation): as 100 to 87.

Salvia coccinea: as 100 to 100.

Brassica oleracea: as 100 to 103.

Iberis umbellata (second generation): as 100 to 136.

Delphinium consolida: as 100 to 45.

Hibiscus africanus: as 100 to 105.

Tropaeolum minus: as 100 to 115.

Lathyrus odoratus (about): as 100 to 100.

Sarothamnus scoparius: as 100 to 88.

Specularia speculum: as 100 to 86.

Nemophila insignis: as 100 to 105.

Borago officinalis: as 100 to 111.

Cyclamen persicum (about): as 100 to 50.

Fagopyrum esculentum: as 100 to 82.

Canna warscewiczi (3 generations): as 100 to 102.

It is remarkable that in ten out of these sixteen cases the self-fertilised seeds were either superior or equal to the crossed in weight; nevertheless, in six out of the ten cases (viz., with Ipomoea, Salvia, Brassica, Tropaeolum, Lathyrus, and Nemophila) the plants raised from these self-fertilised seeds were very inferior in height and in other respects to those raised from the crossed seeds."]