Gleichenia

Gleichenia ferns often grow entangled with one another and with other plants; hence their common name of tangle ferns.  But our understanding of them is also in a tangle.  Two or three species are currently recognised in New Zealand, but I think there are at least five.  The picture is of a new species.  It looks similar to the others from above, but very different when viewed from below.  I hope to formally describe it in a year or so.  Then I will be able to show you the differences.  Our fieldwork significantly extended the known occurrences of this fern.  Photo Leon Perrie. © Te Papa.

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