Grisebach made a mistake when he assigned the name. In the protologue and on the label of the holotype he clealy mentioned ‘var. filiformis R&P’. Herewith he designated Peperomia filiformis Ruiz & Pav. the basionym of the new variety. However, in that case he also had to respect the type of P. filiformis, which he didn’t. [Mathieu 2011]