Arachnothryx purpurea (Lorence) Borhidi Arachnothryx purpurea (Lorence) Borhidi in Acta Bot. Hung. 38 (1–4): 140. 1995 sec. Lorence 2011≡Rondeletia purpurea Hemsl. in Novon 1: 148. 1991 syn. sec. Lorence & Taylor 2012