Which preposition to use with pinnules

of Occurrences 4%

These are varieties TÝPICUM and ELÀTIUS, both with the pinnæ obliquely ascending (including variety angustum of D.C. Eaton), but the latter has broader fronds with the pinnules of the sterile fronds oblong-lanceolate, somewhat acute and strongly toothed or pinnatifid.

on Occurrences 2%

Pinnules on the inferior side of the pinnæ often elongated, especially the lower pair, the pinnule nearest the rachis being usually the longest, at least in the lowest pinnæ.

of Occurrences 2%

Trichomanes Boschianum Fruiting Pinnules of Filmy Fern Crosiers Noted Fern Authors Spray of the Bulblet Bladder Fern

like Occurrences 1%

Veins extending from the base of the pinnules like the ribs of a fan.

Which preposition to use with  pinnules