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Examples of Rostellum
In the winter of 1868-9 Walsh was, however, appointed State Entomologist of Illinois.
It has been extremely kind of you to take so very much trouble for me.
But to do this, the curiously projecting and fleshy summits of anther-cases must at some time be pushed back slightly.
I wrote yesterday to thank you for the Epipactis.
Oddly, the columns of pollen are here kept in place by very early penetration of pollen-tubes into the edge of the stigma; nevertheless, it receives more pollen by insect agency.
It seems curious that a flower should exist which could, at most, fertilise only two other flowers, seeing how abundant pollen generally is; this fact I look at as explaining the perfection of the contrivance by which the pollen, so important from its fewness, is carried from flower to flower.