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Bull. Soc. Bot. 1854 vol 1.

p. 122 M. M. E. Germain de St Pierre says central floret of carrot is not strictly central (but this is disputed) variable, only occasionally red, sometimes sterile, but when red is generally more vigorous & fertile.

[Observations sur la structure de l'ombellule et de la fleur dite centrale dans le genre daucus, et particuliérement chez le daucus e daucus carota.]

Bull. Soc. Bot. 1854 vol 1.

p. 136 M. James Lloyd author of the Flora de la Loire inférieure says that the same species become less vigorous in going Northwards.

[Flore de l'ouest de la France.]

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Bull. Soc. Bot. 1854 vol 1.

p. 162 M. de Melicocq observations on a variety of Pyrola rotundifolia which grows on banks of canals & flowers much later than the common form. It has never varied in this respect for 12 years. It cannot have grown where it now grows before the present century. It seldom sets seeds.

[Observations sur une variété du pyrola rotundifolia.]

Bull. Soc Bot. 1854 vol 1 (I have ordered this book)

p. 195 Dr Clos dissertation on the influence which the sexes of plants exercises on their structure.

[Dissertation sur l'influence qu'exerce clans les plantes la différence des sexes sur le reste le l'organisation, suivie de l'examen des deux sortes de diclinismes.]

Bull. Soc Bot 1855 vol. 2

p 76. Dr Clos on flowers of ombelliferoe in Diposis & in 2 other genera the middle flower is alone fertile, whereas Myrrhis the central flowers are male. In Hermas it is the reverse.

[L'ombelle, inflorescence définie et indéfinie.]