Rhynchostegium fissidentellum Besch. in Mém. Soc. Sci. Nat. Cherbourg 21: 270. 1877 .

Type citation. – “Guarapi, sur la terre ferrugineuse, Balansa 1217 ”.

Type specimen. – Syntype: Guarapi, 1877, Balansa 1217 (Herb. DC. [1878], G00040476) .

Type designation. – None found.