Etymology of the term monilophyte
Phylogeny and evolution of ferns (monilophytes) with a focus on the early leptosporangiate divergences:


  The monilophytes (= Infradivision Moniliformopses, sensu Kenrick and Crane, 1997⇓) share a distinctive vasculature, having protoxylem confined to lobes of the xylem strand (Stein, 1993⇓), therefore the Latin moniliformis appellation for “necklace-like.”