Quincuncial

• 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 aestivation. • Having the form of a quincunx.
Found on http://thinkexist.com/dictionary/meaning/quincuncial/

Quincuncial

Quin·cun'cial [ Latin quincuncialis , from quincunx . See Quincunx .] 1. Having the form of a quincunx. 2. (Botany) 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,
Found on http://www.encyclo.co.uk/webster/Q/11

quincuncial

Of the arrangement of corolla lobes in a bud, a variant of imbricate aestivation. ... (09 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

quincuncial

quincunx, quincuncial An arrangement of five objects in a square, with four at the corners and one in the center. Literally, 'five' plus uncia, 'a twelfth'.
Found on http://www.wordinfo.info/words/index/info/view_unit/1822/
No exact match found