Pteridrys
Species in Papuasia
| 1a. | Basal pinnae not enlarged; very few sinuses with sinus teeth | P. olivacea |
| Basal pinnae enlarged; many sinuses with sinus teeth | P. microthecia |
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| 1a. | Basal pinnae not enlarged; very few sinuses with sinus teeth | P. olivacea |
| Basal pinnae enlarged; many sinuses with sinus teeth | P. microthecia |