English edit

Etymology edit

From New Latin ptyxis, from Ancient Greek πτύξις (ptúxis, a folding).

Pronunciation edit

Noun edit

ptyxis (countable and uncountable, plural ptyxes)

  1. (botany) The way in which an individual leaf is folded in the bud.

Usage notes edit

The arrangement of several leaves is called vernation or prefoliation.