Pronephrium bulusanicum Mt Bulusan, Luzon, Elmer 16585 (K) Mt Bulusan, Luzon, Elmer 16585 (FI) Mt Bulusan, Luzon, Elmer 16585 Mt Bulusan, Luzon, Elmer 16585 (G) Mt Bulusan, Luzon, Elmer 16585 (BO)