Which preposition to use with footstalk

of Occurrences 2%

The part used is the footstalks of the leaves, which, peeled and cut into small pieces, are put into tarts, either mixed with apples or alone.

in Occurrences 1%

A large centipede would come out and take a hurried turn round the Governor's seat; or a bat would settle in broad daylight in the curate's hood; or one had to turn away one's eyes lest they should beholdnot vanity, butthe magnificent head of a Cabbage-palm just outside the opposite window, with the black vultures trying to sit on the footstalks in a high wind, and slipping down, and flopping up again, half the service through.

Which preposition to use with  footstalk