These 72 plants were therefore
grandchildren of the Edinburgh plant, and they all bore, as in the first
generation, red flowers, with the exception of one plant, which reverted in
colour to the common cowslip. In regard to structure, nine plants were truly
long-styled and had their stamens seated low down in the corolla in the proper
position; the remaining 63 plants were equal-styled, though the stigma in about
a dozen of them stood a little below the anthers. We thus see that the anomalous
combination in the same flower, of the male and female sexual organs which
properly exist in the two distinct forms, was inherited with much force. Thirty-
six seedlings were also raised from long and short-styled common cowslips,
crossed with pollen from the equal-styled variety. Of these plants one alone was
equal-styled, 20 were short-styled, but with the pistil in three of them rather
too long, and the remaining 15 were long-styled. In this case we have an
illustration of the difference between simple inheritance and prepotency of
transmission; for the equal-styled variety, when self-fertilised, transmits its
character, as we have just seen, with much force, but when crossed with the
common cowslip cannot withstand the greater power of transmission of the latter.
PULMONARIA.
I have little to say on this genus.
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