Monographs Details: Arachnothryx cupreiflora (K.Schum. & K.Krause) Steyerm.
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Rubiaceae
Discussion:

Rondeletia cupreiflora K. Schum. & K. Krause, Bot. Jahrb. 40: 314. 1908.

Type. Arboretis densis prope Antioquia, alt 1700-2000 m, Colombia, Lehmann 7289. Also known from Ecuador.