'Quincuncial phyllotaxy' definitions:

Definition of 'Quincuncial phyllotaxy'

From: GCIDE
  • Quincuncial \Quin*cun"cial\, [L. quincuncialis, from quincunx. See Quincunx.] [1913 Webster]
  • 1. Having the form of a quincunx. [1913 Webster]
  • 2. (Bot.) 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; as, quincuncial [ae]stivation. [1913 Webster]
  • Quincuncial phyllotaxy (Bot.), an arrangement of five leaves in a spiral, each leaf two fifths of a circle from the next. [1913 Webster]