Hymenophyllum reinwardtii
Hymenophyllum reinwardtii is a quintessentially New Guinean fern diagnosed by its entire, strongly undulate margins, and moderate leaf size.

Hymenophyllum reinwardtii is a quintessentially New Guinean fern diagnosed by its entire, strongly undulate margins, and moderate leaf size.
The alate rachis that is decurrent along the petiole would suggest Tectaria decurrens. However, the breaks in this tissue at each pinna is in conflict with that species. This plant may be a hybrid between T. decurrens and T. repanda, which Holttum (1991) reports being...
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