Growing on Oleairia trunk alongside N. heterophylla and N. ciliata. Previously thought by me to be another plant of the same species as observed here https://inaturalist.nz/observations/34196367#activity_comment_3573090 but now recognised as a different species.

Under regenerating beech and kanuka forest.

Flowers here notably translucent and pappilose on the dorsal, and both inside and out on the labellum. A local feature here. Another common local feature is ridge on the dorsal giving a conical rather than spathulate frontal aspect.

Originally part of the Corybas trilobus aggregate.

Occurs mainly at elevation [sub-alpine] under beech forest at Nelson's latitude, but can on rare occasions be found in cold shaded riverine habitat at lower altitudes.

Distinguishing features. Flower light apple green with labellum bib frequently translucent. Dorsal broadly spathulate often ridged and can have a faint reddish or purple flush at the distal end on occasions. Leaves trilobate, flower generally above the leaf.
Previously tagged Corybas 'triwhite' by Eric Scanlen.

The last [rather poor] photo has been included to show C. wallii and C. vitreus [right] growing sympatrically. I have been observing these colonies for 20 years and have never seen any evidence of hybridisation, which vindicates recognition of these as separate species, clearly using different pollinator vectors.

Saw these a week ago without flowers but heard yesterday they were in flower, so went first thing this morning to get photos. Using Knee pads to get down meant some of the best shots I have taken of this species, so really happy.