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Darwin, Charles, 1809-1882

"The Different Forms of Flowers on Plants of the Same Species"

In every other
instance these two forms and the equal-styled variety have been produced by
distinct plants.]
Primula vulgaris, BRIT. FL.
VAR. acaulis OF LINN. AND P. acaulis OF JACQ.
VAR. RUBRA.
Mr. Scott states that this variety, which grew in the Botanic Garden in
Edinburgh, was quite sterile when fertilised with pollen from the common
primrose, as well as from a white variety of the same species, but that some of
the plants, when artificially fertilised with their own pollen, yielded a
moderate supply of seed. (5/10. 'Journal of the Proceedings of the Linnean
Society' 8 1864 page 98.) He was so kind as to send me some of these self-
fertilised seeds, from which I raised the plants immediately to be described. I
may premise that the results of my experiments on the seedlings, made on a large
scale, do not accord with those by Mr. Scott on the parent-plant.
First, in regard to the transmission of form and colour. The parent-plant was
long-styled, and of a rich purple colour. From the self-fertilised seed 23
plants were raised; of these 18 were purple of different shades, with two of
them a little streaked and freckled with yellow, thus showing a tendency to
reversion; and 5 were yellow, but generally with a brighter orange centre than
in the wild flower. All the plants were profuse flowerers.


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