? Piper schlechtendahlianum
is a nom. illeg. based on among others Enckea schlechtendalii Miq. (which was based on specimens from Mexico) and "P. angustifolium Pav." (an invalid name, probably a nomen herbariorum). I have not seen the type of Miquel's species name, and it is not clear which species Lemée had in mind when he (1955: 481) accepted this species for French Guiana: "P. angustifolium Pav. (P. schlechtendalianum or schlechtendalii Pav.)".