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A Key to the Pteridophytes of Moorea GROUP 5: Terrestrial with leaves pseudodichotomously branched |
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| 1 | Pinnae alternate; veins anastomosing; sporangia borne on modified lobes | Lygodium reticulatum |
| Pinnae opposite; veins free; sporangia borne on underside of blades | 2 | |
| 2 | Blades pinnate-pinnatifid above the ultimate forks | Diplopterygium longissimum |
| Blades pectinate above the ultimate forks | 3 | |
| 3 | Veins of ultimate segments twice or more forked; axils (dormant buds) covered in hairs | Dicranopteris linearis var. linearis |
| Veins of ultimate segments once forked; axils covered in scales | Sticherus tahitensis |
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