RECORD: Darwin, C. R. & Francis Darwin. n.d. Abstract of Fermond, Faits pour servir à l'Histoire générale de la Fecondation chez les Végétaux. CUL-DAR77.134-138. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2023. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR 76-79 contain material for Darwin's book Cross and self fertilisation (1876).


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"Faits pour servir à l'Histoire générale de la Fecondation chez les Végétaux" par Ch Fermond— 1859

p 34 He distinguishes 3 varieties

(1) scarlet flowers & violet seeds

(2) white flowers and seeds

(3) bicoloured flowers; seeds rusty & yellowish white

36 He has found white variety constant in colour of seeds and flowers for 4 years — Also red ones kep grown in another garden constant

In 1851 he sowed white and purple seeds together, and they cross some bicolor flowers came up, the seeds of which looked like the seeds of the bicolor variety & gave produced bicolored flowers in the following year—

He mistrusted this experiment

In 52

In '52 He he sowed white beans, produced from white beans plants grown mixed with scarlet ones plants and got some scarlet flowers— He mistrusted this also

In 53 — he sowed a patch of white beans seeds near a patch of purple seeds — Both sets of seeds

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had been produced from white and violet seeds beans which had "joué" together the year before

In this experiment he got some scarlet flowers in the patch raised from white seeds— White flowers in the patch from purple seeds.

In 1854 — He sowed a patch of pure white seeds of pure purple near each other—

He Each patch came true in colour of flower—

In 1855— he sowed separately purple and also white seeds produced in 1854 — The white produced some purple scarlet see flowers the purple some white flowers & seeds.

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He speaks (p 51) of P. Multiflorus as having red and red & white flowers, and lilac and violet-black marbled seeds (p 50).

Cal Gives coccineus as synonym p 76

—P. 50 P. vulgaris and multiflorus do not cross when planted near together — He mentions p 50 a difference in their styles but not as if anything to do with it

One seed got by planting white seeded P. mult near purple seeded ditto— appeared to be the product of a cross, but its offspring resumed were pure P. multiflorus purple seeded be plants

p 55. P. multiflorus set 2 pods in one "bluthenstand'' when carefully protected— In 5 other exper bluthenstände no fruit— He says the damp of the bags injures the flowers so that even buds rot off.

p 60 8 protected plants (trenbau) "clusters of flowers" of P. multi in gauze bags remained sterile

p 61 / Crossing in Pollen of white flowered P. multi flowers is prepotent is over red flowered's own pollen—

p 68. In 12 out of 16 trenbau clusters of flowers in gauze bags of P. multiflorus protected the flowers and young buds died off

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71 Definite colours in the flower give definite red colours—

(a) Red flower violet & black marbled seeds

(b) White & Red flowers or flesh colour & red; brown & white marbled seeds

(c) — white both —

But these seeds do not reproduce again the same coloured flowers.

72 He never got seeds two colours in one pod

61 He artificially fertilised the stigma of young red flowers with the pollen from white flowers most set no seeds — One flower cluster bore 3 pods — which were imperfectly developed and bore livid pale muddy-white- violet seeds. Three pods bore typical seeds

50 artificial fertilisatn with castration produced failed

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same thing happened in a pot in northerly room

72. He concludes that insect agency is not necessary but is useful for fertilisation— of P multiflorus.

Crossing cannot be effected either planting near or artificial impregn=

The flower is really intended for self-fertilisation=

Crossing is impossible between P. multi & vulgaris.

When two varieties were planted close together & the seeds were of mixed character he assumes it is spontaneous variation. Because he found there is a great deal of spontaneous variation in P. multiflorus, but he never says he got pure seed to try this, and he mentions that, all the experiments were in the Bot Garden p 72 where he could only have he says 40 to 150 paces of isolation


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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 29 May, 2023