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Pteris incertae sedis
ferns
Nucleotide Protein
Pteris sect. Creticae
section, ferns
Pteris sect. Mutilatae
Pteris sect. Dentatae
Pteris sect. Litobrochia
Pteris sect. Tripedipteris
Pteris sect. Excelsae
Pteris sect. Cadierii
Pteris sect. Hypsopodium
Pteris sect. Semipinnatae
Pteris sect. Tremulae
Pteris sect. Pteris
Pteris sect. Moluccanae
Pteris subgen. Pteris
subgenus, ferns
unclassified Pteris
Pteris sect. Campteria
Pteris subgen. Campteria
Cheilanthoideae
subfamily, ferns
Pteridoideae
Parkerioideae
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