Phymatosorus (depressed sori) can be considered an umbrella genus for a number of species that have been variously classified as Microsorum, Polypodium, and Lecanopteris. The genus name itself may soon be obsolete pending further scientific examination of botanical details, but the creeping rhizome habit is common by whatever classification.
Phymatosorus diversifolius (leaves of different shapes) is native to New Zealand and Australia, where it forms extensive colonies on rough-barked trees, on tree fern trunks, or along the caps of old stone walls. It can be grown as a ground cover in shade, but is one of those ferns, the better enjoyment of which may be in contemplating it in the place that it has chosen for itself. (Description by George Schenk.)
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