Trichomanes angustifrons (Fée) Wess. Boer Trichomanes angustifrons (Fée) Wess. Boer, Fl. Neth. Antill. 1: 17. 1962 sec. Mickel & Smith 2004≡Didymoglossum angustifrons Fée, Mémoire Foug. 11: 113, t. 28, f. 5. 1866 syn. sec. Mickel & Smith 2004