Adiantum philippense displays spore packets (sori) that are covered by the edge of the leaflet folded back over them. In botanical terms this is known as a false indusium.
Image from Ferns of Thailand, Laos and Cambodia (2014)
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
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