A Key to the Pteridophytes of Moorea

GROUP 5: Terrestrial with leaves pseudodichotomously branched

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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