An inordinate fondness for systematics
To answer your question: no. But I reason that it is seems to have veins and therefore is a tracheophyte and also clearly has spores, so is not a seed plant. So its a fern or fern ally. Googling around for ferns that bear their sporangia at the tips of their pinnules, I found Davallia, a commonly grown house plant. Of those D. fejeensis seems to be closest.A native of Fiji and Australia apparently.
It looks like a Hymenophyllum. The cup-shaped indusia are really distinct. I am interested to see if my guess is right. It would really be good to know that some of the info from my OTS course on ferns actually stuck.
With clues from Adam, Jessica and Google I'm leaning Davalia canariensis with those sori born in apical submarginal pockets.Now perhaps some thinking to do.
Neil had the right species (did he find the photo source, I wonder?) but I think I have to give Adam the three-pointer. Two points to Neil, one to Jessica. Which is all a bit irrelevant, because that carries both Neil and Adam above the ten-point mark, in a Name the Bug tie. So do I give the prize to Adam (highest total on twelve points), give the prize to Neil (because Adam's won before), or devise some form of tie-breaker?
Jessica: Hymenophyllaceae are distinguishable from other ferns by their super-thin fronds, only one or two cells thick. Not a bad go with the sorus shape, but the frond in this photo is too thick for Hymenophyllum.
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