Cyathea cunninghamii
Cyathea cunninghamii - Slender Treefern  (Subg. CYATHEA, sect. Cyathea)

IDENTIFYING FEATURES:
*   very slender treefern ... fairly small fronds ... often growing tall above Dicksonia antarctica in Victoria & Tasmania ... only found in the wettest, most sheltered gullies ... also in New Zealand (shown above at Tarra Valley in Gippsland, Eastern Victoria)
*  large, thin, irregular, cup-shaped indusium beneath sori ... may be readily seen with a magnifying glass after sori have disintegrated, even on bits of old frond at the base of a mature treefern
*  dark stipes ... pale scales on crown and croziers... may have a reduced pair of pinnae at base of each stipe