quincuncial

Of, relating to, or forming a quincunx.

Disposed so as to form a quincunx; arranged in a set of five; also, arranged in two sets of oblique rows, at right angles to one another, so that five together form a quincunx; in botany, sometimes noting a pentastichous arrangement of leaves; more often noting an estivation.

Having the form of a quincunx.

Having the leaves of a pentamerous calyx or corolla so imbricated that two are exterior, two are interior, and the other has one edge exterior and one interior.

an arrangement of five leaves in a spiral, each leaf two fifths of a circle from the next.

Arranged in a quincunx.