Polypodium spinulosum Burm. f., Fl. Indica: 233. 1768 Polypodium spinulosum Burm. f., Fl. Indica: 233. 1768is earlier homonym of Polypodium spinulosum O. F. Müll. in Oeder, Fl. Dan. 12: 7. 1777This name is not assigned to any taxon.